RU2208916C1 - Method of search for multibeam wide-band signal and device for its realization, process of detection and evaluation of size of cluster of beam signals and unit for its realization - Google Patents

Abstract

FIELD: radio engineering. SUBSTANCE: group of inventions developed on single invention principle refers to method of search for multibeam wide-band signal and device for its realization, to process of detection and evaluation of size of cluster beam signals and unit for its realization and can be used in cellular radio communication systems with code-division multiple access ( CDMA ). Technical result of this group of inventions lies in improvement of characteristics of search for multibeam wide-band signal which is achieved thanks to detection and simultaneous processing of components of cluster of multibeam signal and singular beam signals. Advantage of proposed method of search for multibeam signal consists in improvement of characteristics of search that is attained due to execution of correction of phase of each component of received multibeam signal, in detection and simultaneous processing of components of cluster of beam signals. Device for realization of method of search for multibeam signal has antenna, receiver, reference signal former, correlation unit, unit detecting isolated beam signals, control unit, unit for comparison with threshold, first and second on-line storages, unit extracting groups of complex values of cross correlation, phase correction unit, unit detecting and evaluating size of cluster of beam signals. Salient feature of proposed process of detection and evaluation of size of cluster of beam signals lies in summing of components of cluster of multibeam signal in sliding window, in computation of relations of moduli of obtained sums to threshold and selection of maximal relation. Size of cluster and its time position are determined by size and position of sliding window corresponding to this maximal value. Unit detecting and evaluating size of cluster of beam signals includes first and second on-line storages, integrator, unit computing moduli of complex values of cross correlation to values of threshold, unit of maximum selection, control unit, threshold computing unit, first and second registers, first and second adders. EFFECT: improved characteristics of search for multibeam wide-band signal. 5 cl, 11 dwg

Description

 The group of inventions created in a single inventive concept relates to radio engineering, in particular to a method for searching for a multi-beam broadband signal and a device for its implementation, a method for detecting and estimating the size of a cluster of beam signals and a unit for its implementation, and can be used in cellular radio communication systems with code division multiplexing (CDMA systems).

 In cellular radio communication systems, in particular CDMA systems, the reception of broadband signals is carried out in conditions of multipath propagation of signals.

 In urban areas, multipath occurs when a transmitted signal is reflected from surrounding buildings, cars, and other objects.

 In communication systems with broadband signals, multipath propagation is used, as a rule, to increase the reliability of information transmission due to the correlation separation of complex signals arriving in different ways and summing them after demodulation.

An analysis of the multipath propagation of broadband signals and their processing methods is given in the article by J. L. Turin [1, J. L. Turin. Introduction to broadband methods to combat the multipath propagation of radio signals and their application in urban digital communication systems. TIIER, vol. 68, 3, March 1980, pp. 30-58.] And in the book of A. Viterbi [2, Andrew J. Viterbi. CDMA Principles of Spread Spectrum Communication. Addison-Wesly Publishing Company, 1995.]
According to ITU-R Recommendations for IMT-2000 [3, Recommendation ITU-R MI 225 Guidelines for evaluation of radio transmission technologies for IMT-2000], the rays can be at several adjacent time positions of the uncertainty region. The set of signal beams for which the delay interval between any two adjacent beams is less than or equal to one expanding memory bandwidth chip is called a beam signal cluster.

 FIG. 1 illustrates a cluster of signal beams: (a) distribution of the power density of rays, (b) a pseudo-random sequence chip.

 The results of the study of the multipath profile are given in the article [4, Said S. Gassemsalde, Donald L. Schilling, Sion Hadad, K. Parsa. Multipath statistics for a direct sequence CDMA signal at a frequency of 2 GHz in microcells and indoors. IEEE, 1994, 0-7803-1828-5 / 94, p. 604-607].

 When receiving wideband multipath signals, a search procedure is performed, which, as a rule, is a scan of the uncertainty region with the detection of a signal at each of its points.

 Various methods and devices for searching for a multi-beam broadband signal are known, for example, the method and device described [5, Noise-like signals in information transmission systems. Ed. Pestryakova V.B. - M .: Soviet radio. 1973, p.31-38].

 The method of searching for broadband signals [5] is that they form two reference signals, which are copies of the received signal, phase shifted relative to each other by π / 2, determine the cross-correlation signal between the received signal and the reference signals by multiplying and accumulating in-phase components on the interval of the signal duration, the quadratic values of the in-phase and quadrature components of the cross-correlation signal are calculated, the obtained values are summed and the square root is extracted from the sum, f rmiruyut output value, after which the signal is compared with a predetermined threshold level and for receiving the results of comparison of the detection signal a decision.

 Device [5, Noise-like signals in information transmission systems / Ed. Pestryakova V. B. - M .: Soviet Radio, 1973, is given on p. 33, FIG. 2,3,6].

 An analog device [5] contains a quadrature correlator including a first multiplier, a first integrator, a first quadrator and a second multiplier, a second integrator, a second quadrator, an adder and a square root extractor, and the device also contains a copy generator of the received signal, a key, a threshold the device and the threshold shaper, while the first inputs of the multipliers are combined and form the input of the device, the second inputs of the multipliers are connected respectively to the first and second outputs of the generator a copy of the received signal, the outputs of the first and second quadrators are connected respectively to the first and second inputs of the adder, the output of which is connected to the input of the square root extraction unit, the output of which is connected to the first input of the key, the second input of which is connected to the third output of the copy signal generator, the output of the key connected to the first input of the threshold device, the second input of which is connected to the output of the threshold shaper, the output of the threshold device is the output of the device.

 The method and device for searching for broadband signals [5] are implemented as follows.

 The generator of the copy of the received signal generates two reference signals, which are copies of the received signal, phase shifted relative to each other by π / 2, and feeds them to the second inputs of the first and second multipliers.

 In the quadrature correlator, the cross-correlation signal between the received signal and the reference signals is determined by multiplying and accumulating in-phase components in the interval of the signal duration, the quadratic values of the in-phase and quadrature components of the cross-correlation signal are calculated, the obtained values are summed and the square root is extracted from the sum. The obtained value through the key, which closes at the end of signal accumulation by the control signal from the copy generator of the received signal, is fed to the first input of the threshold device, the second input of which receives the signal from the threshold shaper. The threshold device compares the obtained value with a given threshold level and, based on the results of the comparison, makes a decision on detecting the signal.

 The disadvantage of this technical solution is that the search for the components of the multipath broadband signal is performed independently of each other, that is, a decision is made to detect the signal at a specific time position.

 This approach is not optimal for processing a multipath broadband signal.

 Another technical solution is known for the method and device for searching for a broadband signal described in the monograph by A. Viterbi [6, Andrew J. Viterbi. CDMA: principles of spread spectrum communication. Includes bibliographical references and index. ISBN 0-201-63374-4. I Title. TK 5103.45.V57 1995].

 The way to search for a broadband signal according to Viterbi is that they perform quadrature conversion of the received signal, forming in-phase and quadrature components of the signal, form a reference signal representing a copy of the received signal, determine the signal for mutual correlation of the received signal with the reference signal by multiplying the in-phase and quadrature components of the received signal with the reference signal and accumulation, forming a sequence of values of the cross-correlation signal, calculate the squares infaznoy and quadrature components of the received signal sequence of cross-correlation values, the obtained values are summed to accumulate the detection and ranging, form the output value which is compared with a predetermined threshold level, and by comparing decide the detected signal.

 The device contains the first and second multipliers, the first inputs of which are combined and are the information input of the device, the second inputs of the first and second multipliers are connected to the output of the carrier frequency generator, the second input of the first multiplier connected to the output of the carrier frequency generator, and the second input of the second multiplier through phase shifter, the outputs of the first and second multipliers respectively connected to the first inputs of the first and second low-pass filters, the correlation block, the content connecting the first multiplier and the first accumulator adder and the second multiplier and the second accumulator adder, the first and second inputs of the correlation block formed by the first inputs of the first and second multipliers of the correlation block, connected respectively to the outputs of the first and second low-pass filters, the third input of the correlation block, formed by the combined second inputs of the first and second multipliers of the correlation block, connected to the output of the reference signal generator, the first and second outputs the correlation lock formed by the outputs of the first and second accumulators, respectively connected to the inputs of the first and second quadrators, the outputs of which are respectively connected to the first and second input of the adder, the output of which is connected to the input of the incoherent accumulation unit, the output of which is connected to the comparison unit with a threshold, the output which is the output of the device.

 The method and device [6] work as follows. The mixture of the input signal and noise is supplied to the first inputs of the first and second multipliers, the second inputs of which receive a signal from the carrier frequency generator, and to the second input of the first multiplier, directly, and to the second input of the second multiplier through the phase shifter. The output signal from the first and second multipliers is filtered at a low frequency in the first and second low-pass filters. Thus, quadrature conversion of the received signal is carried out.

 The reference signal generator generates a reference signal representing a copy of the received signal and feeds it to the third input of the correlation block (formed by the second inputs of the first and second multipliers of the correlation block), the output signal from the first and second low-pass filters, respectively, comes to the first and second inputs of the correlation block. The output signals of the first and second multipliers of the correlation block are respectively received at the inputs of the first and second accumulative adders. In this way, the cross-correlation value between the received and reference signals is calculated by multiplication and accumulation.

 The output signals from the correlation block formed by the output signals of the first and second accumulative adders are fed to the inputs of the first and second quadrators, where the squares of the in-phase and quadrature components of the obtained values of the cross-correlation signal are calculated.

 The obtained squares of the components are summed in the output adder, forming a square of the module of values of the cross-correlation signal. Then, in the incoherent accumulation block, the squares of the modules of the cross-correlation signal values are sequentially accumulated over the detection interval, compared with a predetermined threshold level in the block, and the decision is made to detect the signal based on the results of the comparison.

 The disadvantages of this technical solution is that the search for components of a multipath broadband signal is performed independently of each other. That is, a decision is made to detect a signal at a specific time position. This approach is not optimal for processing a cluster of signals.

 The amount of energy contained in the signal during multipath propagation is unchanged. Therefore, the more independent components of the multipath broadband signal at the input of the receiver, the lower the energy of each of them, the lower the signal-to-noise ratio in each beam. The search characteristics (false alarm probability and signal skipping) depend on the signal-to-noise ratio. Therefore, as the multipath component increases, the search performance deteriorates.

 The closest technical solution to the claimed objects of the group of inventions - the method of searching for a multipath broadband signal and device for its implementation is the invention [7, US patent 5805648. Method and apparatus for performing search acquisition in a CDMA communication system, hit. Cl. H 04 L 7/00].

 The prototype method is as follows: carry out multiple scans of the uncertainty region, when scanning at each point of the uncertainty region, the received and reference signals are multiplied, the product obtained is coherently accumulated, the module is calculated, and the coherent accumulation modules are incoherently accumulated; incoherent accumulation results are compared with a threshold; if the threshold is exceeded, then this point in the region of uncertainty is rechecked at the next stage of the search; at each stage of the search, the parameters (number of incoherent accumulations, threshold value, window size) of the search change; at the last stage of the search, they decide on the value of the delay of the useful signal).

 The prototype device (Fig. 2) contains: antenna 1, receiver 2, pseudo-random sequence generator (GPS) 3, quadrature correlator 4, first 5 and second 6 coherent batteries, node calculation module 8, incoherent battery 9 and threshold calculation node 10, control unit 12.

 In the prototype device, the correlator 4, the first 5 and second 6 coherent batteries functionally calculate the correlation of the input signal with the reference signal. Therefore, it is advisable to present these blocks as a correlation block 7 (as shown in FIG. 2). The calculation unit of module 8, the incoherent battery 9, and the calculation unit of threshold 10 collectively perform the detection of beam signals. Therefore, it is advisable to present these blocks as a ray signal detection unit 11 (as shown in FIG. 2).

 Figure 2 in accordance with the description of the prototype shows: the output of the antenna 1 is connected to the input of the receiver 2, the first and second outputs of the receiver 2 are connected respectively to the first and second inputs of the correlation unit 7, while the first and second inputs of the correlation unit 7 are respectively in-phase and the quadrature inputs forming the information input of the correlation block 7, the first and second inputs of the correlation block 7 are formed respectively by the first and second inputs of the quadrature correlator 4, the third and fourth inputs of the correlation block 7, which are respectively, in-phase and quadrature inputs of the reference signal of the correlation block 7 are connected respectively to the first and second outputs of the GPSS, the third and fourth inputs of the correlation block 7 are formed respectively by the third and fourth inputs of the quadrature correlator 4, the fifth input of the correlation block 7, which is respectively the control input, is connected respectively with the first output of the control unit 12, forming at this output a control signal for the duration of the interval of coherent accumulations of cross-correlation values for the in-phase the fourth and fourth components of the signal, the fifth input of the correlation block 7 is formed by the combined first inputs of the first 5 and second 6 coherent batteries, the first and second outputs of the quadrature correlator 4 are connected respectively to the second inputs of the first 5 and second 6 coherent batteries, the output of the first 5 coherent battery, forming the first output of the correlation unit 7 is connected to the first input of the ray signal detection unit 11, the output of the second 6 coherent battery, forming the second output of the correlation unit 7, is connected connected to the second input of the ray signal detection unit 11, the first and second inputs of block 11 are formed respectively by the first and second inputs of the calculation unit of module 8, the output of the calculation unit of module 8 is connected to the first input of the incoherent battery 9, the second input of the incoherent battery 9, forming the third input of the block 11, connected to the fourth output of the control unit 12, the output of the incoherent battery 9 is connected to the first input of the threshold calculation unit 10, the second input of the threshold calculation unit 10, forming the fourth input of the block 11, is connected to the output of the control unit 12, the output of the threshold calculation unit 10, forming the output of the unit 11, is connected to the input of the control unit 12, the second output of which is connected to the input of the GPS 3, the third output of the control unit 12 is the output of the device, the control unit 12 generates a signal at the third output defining the temporary position of the beam signal.

 The method and device (prototype) works as follows. The input signal is fed to antenna 1. Multiple scans of the uncertainty region are performed using the receiver 2. When scanning at each point of the uncertainty region, the received and reference signals are multiplied, the product obtained is coherently accumulated using GPSP 3, quadrature correlator 4, first 5 to perform these operations and second 6 coherent batteries. In node 8, the module of the obtained coherent accumulation of the product is calculated. In the incoherent accumulator 9, incoherent accumulation of the coherent accumulation modules of the obtained product is performed. The results of incoherent accumulation are compared with the threshold at node 10; if the threshold is exceeded, then this point in the region of uncertainty is rechecked at the next stage of the search; at each stage of the search, the parameters (number of incoherent accumulations, threshold value, window size) of the search change; at the last stage of the search, a decision is made on the magnitude of the delay of the useful signal.

 The disadvantages of the method and device of the prototype is that the search for components of a multipath broadband signal is performed independently of each other. That is, when searching, the detection of each component of the multipath signal is carried out independently of the others.

 This approach is not optimal for processing a cluster of signals.

 The search characteristics of multipath signal components can be improved by processing not individual components, but a cluster of signals as a whole.

The closest technical solution to the claimed method for detecting and estimating the size of the cluster of beam signals and the unit for its implementation, included in the claimed group of inventions, is the invention [8, RF patent 2164057, Method for detecting a multipath signal cluster and device for its implementation, IPC ⁷ H 04 B 7/216, H 04 L 7/00].

Method - a prototype detection of a multipath signal cluster consists in the fact that they form a reference signal and L-1 additional reference signals that match in shape with the reference signal, which is a copy of the received signal, delay the reference signal in accordance with the hypothesis about the delay of the received signal, delay additional reference signals in accordance with the hypothesis of the delay region of the rays of the cluster of the detected signal, calculate the vector of the cross-correlation signal between the received and reference signals defining it as the initial cross-correlation vector, the cross-correlation signal vectors between the received and additional reference signals are calculated, defining them as L-1 of the additional initial cross-correlation vectors, Q steps of transformations are performed on the L initial cross-correlation vectors, where Q≥1, at if Q = l, then only the first stage of the conversion is performed, which consists in converting each of the L original cross-correlation vectors into K secondary cross-correlation vectors by turning the cross-correlation vector at angles (K-1) φ ₀ , and the rotation step of the vector φ _{0 is} chosen so that (K-1) φ ₀ does not exceed 2π at maximum K, forming at the same time L groups of K secondary vectors of mutual correlations; form K ^L total cross-correlation vectors, each of which represents the sum of the secondary cross-correlation vectors, containing one secondary cross-correlation vector from each group so that each of the sums obtained differs from any other by at least one secondary cross-correlation vector; the modules of the resulting total cross-correlation vectors are calculated and the maximum one is extracted from them, if Q> 1, then the first conversion step is performed, and then at each subsequent step each of the L initial cross-correlation vectors initial for this stage is transformed, providing the maximum total cross-correlation vector at the previous stage, R secondary cross-correlation vectors by rotating the cross-correlation of the original vector by angles (R-1) φ _R, wherein the step of vector rotation φ _R, is selected so that the (R-1) φ _R not thumbs alo step rotation of the vector in the previous step at the maximum R, thereby forming the L groups R secondary cross-correlation vector; form R ^L total cross-correlation vectors containing one vector from each group, so that each of the resulting cross-correlation vectors differs from any other by at least one cross-correlation vector; the modules of the resulting mutual cross-correlation vectors are calculated and the maximum is determined from them, which is used as an output quantity, which is compared with a given threshold level and, based on the comparison results, a decision is made about signal detection.

The prototype device (Fig. 3) contains L correlation blocks 7 ₁ -7 _L , L blocks for the formation of secondary cross-correlation vectors 13 ₁ -13 _L , a unit for combining secondary cross-correlation vectors 14, a calculation unit for module 15, a maximum selection block 16, a block evaluation and correction of phase 17 and the comparison unit with threshold 18, while the first and second inputs of the correlation blocks 7 ₁ -7 _{L are} combined and are respectively in-phase and quadrature inputs forming the information input of the device, the third inputs of the correlation blocks 7 ₁ -7 _L are the reference and connected to a reference signal generator passages 3-phase and quadrature outputs of each of the L blocks correlation July ₁ -7 _L, representing the initial cross-correlation vector, respectively connected to first and second inputs corresponding to them L of such blocks, the block forming secondary cross-correlation vectors 13 ₁ -13 _L first and second outputs of each block forming secondary cross-correlation vectors corresponding to the phase and quadrature components of the secondary cross-correlation vector, connected to their respective WMOs ami combining unit secondary vectors crosscorrelation 14, forming at its input a signal representing the L groups of two secondary vector cross-correlation, the first and second output combining unit secondary vectors crosscorrelation 14 representing the phase and quadrature components 2 ^L total vectors the cross correlation are the outputs of the unit combining the secondary cross-correlation vectors 14, which are connected to their respective inputs of the calculation unit of module 15, the outputs of which are connected to the corresponding and to them the inputs of the maximum selection block 16, the maximum selection block 16, which generates a signal defining the total vector with the maximum module at one of the outputs, is connected to the first input of the phase 17 estimation and correction block, and at the other output, a shaping signal that determines the block adder number combining the secondary cross-correlation vectors 14, at the output of which the maximum total vector is obtained, is connected to the second input of the phase estimation and correction block 17, the phase estimation and correction block 17, which generates control signals at the outputs, determines The angle of rotation of the initial cross-correlation vectors is connected to the additional inputs of the blocks for the formation of secondary cross-correlation vectors 13 ₁ -13 _L , the additional output of the phase estimation and correction block 17, which determines the maximum of the resulting total vectors after completing the Q stage conversion, is connected to the input of the comparison unit with a threshold of 18, the output of which is the output of the device.

 The device works - the prototype as follows.

The reference signal generator 3 generates a reference signal representing a copy of the received demodulated signal and L-1 additional reference signals that match in shape with the reference signal. The reference signal is delayed in accordance with the hypothesis of a delay in the received signal and the additional reference signals are delayed in accordance with the hypothesis of the delay region of the beams of the cluster of the detected signal. The reference signal generator 3 supplies the reference signals to the corresponding third inputs of the correlation blocks 7 ₁ -7 _L to the first and second inputs of which an input information signal is supplied.

In the correlation block 7 _{1, the} in-phase and quadrature components of the received multipath signal and the reference signal are calculated, forming the initial cross-correlation vector. In correlation blocks 7 _{L-1, the in} -phase and quadrature components of the detected cluster of the multipath signal and additional reference signals are calculated, thus forming L-1 additional source cross-correlation vectors. Thus, in the correlation blocks 7 ₁ -7 _L calculate L source cross-correlation vectors.

L of the original cross-correlation vectors from the outputs of the correlation blocks 7 ₁ -7 _L are fed to the corresponding inputs of the blocks for the formation of the secondary cross-correlation vectors 13 ₁ -13 _L In each block of the formation of the secondary cross-correlation vectors, the initial cross-correlation vectors are sent to the first and second inputs, additional inputs of which rotary factors come from the phase estimation and correction block 17. The initial cross-correlation vectors are converted into secondary cross-correlation vectors by rotating the original cross correlation coefficient by 0 and +180 degrees, thus forming at the output of blocks 13 ₁ -13 _L L groups of two secondary cross-correlation vectors in each (rotation +180 and zero degrees).

L groups of two secondary cross-correlation vectors from blocks 13 ₁ -13 _L are fed to the corresponding inputs of the block combining the secondary cross-correlation vectors 14. In block 14, 2 ^L total vectors are formed, each of which represents the sum of the secondary vectors containing one secondary vector from each group in such a way that each of the sums obtained differs from any other by at least one secondary vector.

2 ^L total vectors from block 14 are supplied to the calculation unit of module 15, in which the modules of the resulting total vectors are calculated.

 The values of the modules of the total vectors from block 15 are sent to the block for selecting a maximum of 16.

 The maximum selection block 16, which determines the maximum total vector from the resulting sums of secondary vectors. This operation is performed by sequentially reading the values of the moduli of the total vectors and determining the maximum of them. In this case, the input number with the maximum module value is stored in the memory element. This number is equal to the number of the adder with the maximum value of the total vector. At the output, block 16 generates two values: at the first output, the maximum value of the module, and at the second, the adder number, at the output of which the maximum vector is obtained and provides these values to the first and second inputs of the phase estimation and correction block 17, respectively.

 At the second stage, in the evaluation and correction block of phase 17, the rotation angles of the terms of the maximum total vector are determined by the adder number with the maximum output vector. Then each source vector is rotated by an angle equal to the angle of rotation in the first stage, and by an angle equal to the sum of the angle of rotation in the first stage and the angle + φ. Thus, two groups of two vectors in each are formed.

Then perform 2 ^L summation and determine the maximum total vector.

 At the third stage, in the evaluation and correction block of phase 17, the rotation angles of the terms of the maximum total vector are determined by the adder number with the maximum total vector. Then each source vector is rotated by an angle equal to the rotation in the second stage, and by an angle equal to the sum of the rotation angle in the first stage and the angle minus φ. Thus, two groups of two vectors in each are formed.

 Then the summation of the vectors is performed and the maximum total vector is determined.

 After completing the third stage of the conversion, the phase estimation and correction block 17 issues a maximum vector module to the comparison block with threshold 18.

 In block 18, the module value is compared with a predetermined threshold level and, based on the results of the comparison, a decision is made to detect a signal cluster.

 Method and device - prototype allow you to detect a cluster of ray signals, however, they do not evaluate the size of the cluster of ray signals. This means that when a multipath signal is detected, the size of the processed signal may exceed the cluster size. That is, the processed signal may include noise components. This leads to deterioration of the detection parameters.

 The problem to which the claimed group of inventions is directed is to improve the search characteristics of a multipath broadband signal, which is achieved by detecting and simultaneously processing the components of a cluster of a multipath beam signal and single beam signals.

 The problem is achieved by using the claimed group of inventions; a method for searching a multipath broadband signal and a device for its implementation, a method for detecting and estimating a cluster size of a ray signal and a device for realizing it.

To achieve this goal, a method for searching for a multipath broadband signal, which consists in sequentially scanning the uncertainty region, forming a reference signal, which is a copy of the received signal, when scanning, the complex correlation value between the received signal and the generated reference signal is calculated, forming a complex value of the mutual correlations, perform signal detection, according to the invention, the following sequence of de actions (operations):
perform sequential scanning of the region of uncertainty with a step equal to or less than one chip expanding pseudo-random sequence (SRP),
additionally generating L-1 reference signals matching in shape with the reference signal, wherein all L formed reference signals are shifted relative to each other by one SRP element or less,
when scanning, calculate the complex values of the cross-correlation between the received signal and L-1 additionally formed reference signals, forming additional L-1 complex values of the cross-correlation,
isolated from L complex cross-correlation values J complex cross-correlation values, the modulus of which exceeds a predetermined threshold value P ₁ ,
- from J complex values of cross-correlation distinguish:
adjacent complex cross-correlation values shifted in time relative to each other by one chip or less of the chip, defining them as groups of complex cross-correlation values,
the remaining complex cross-correlation values that are shifted relative to adjacent complex cross-correlation values by more than a chip are defined as independent complex cross-correlation values,
- in each group of complex values of cross-correlation, phase correction of each complex value of cross-correlation is performed,
- perform detection and determine the size of the cluster of beam signals, using for this group of adjusted complex values of cross-correlation, remember the size of the cluster of beam signals and its temporary position,
detect single beam signals using independent complex cross-correlation values, memorize the temporary positions of the detected single beam signals.

 In this case, the phase correction of each complex cross-correlation value is performed by multiplying by the complex value with a module equal to one and with a phase equal to the phase estimate of the complex cross-correlation value taken with the opposite sign.

To solve the problem, a multibeam broadband signal search device comprising an antenna, a receiver, a reference signal generation unit, a correlation unit, a control unit and a single beam signal detection unit, the antenna output is connected to the receiver input, the first and second receiver outputs are connected to the first and the second inputs of the correlation block, while the first and second inputs of the correlation block are respectively in-phase and quadrature inputs, forming the information input of the correlation block, the third and fourth inputs of the correlation block, which are respectively in-phase and quadrature inputs of the reference signal of the correlation block, are connected respectively to the first and second outputs of the block for generating the reference signals, the fifth input of the correlation block, which is respectively the control input, is connected respectively to the first output of the control block forming this output control signal for the duration of the interval of coherent accumulations of cross-correlation values, the first input of the control unit is connected to the output of the block detection of single beam signals, the second output of the control unit forming the control signal for the shift of the reference signals at this output is connected to the input of the block for generating the reference signals, the third output of the control unit forming the signal at the third output that determines the temporary position of the signal of the single beam is the first output of the device , according to the invention introduced:
L-1 first and L-1 second additional outputs of the reference signal generating unit, which are respectively in-phase and quadrature outputs of the reference signal, which are connected to the corresponding L-1 third and L-1 fourth inputs of the correlation unit,
L-1 of the first additional outputs of the control unit, which are control signals for the duration of the interval of coherent accumulations of cross-correlation values, which are connected to the corresponding L-1 fifth inputs of the correlation unit,
a switch, a unit for calculating modules of complex cross-correlation values, a threshold comparison unit, first and second random access memory, a unit for allocating groups of complex cross-correlation values, a phase correction unit, and a beam signal cluster size detection and estimation unit,
new connections were introduced: 2L outputs of the correlation unit, generating L complex cross-correlation signals at these outputs, connected to the corresponding 2L first inputs of the switch, the second input of the switch and the first input of the second random access memory are combined and connected to the fourth output of the control unit, generating at this output a control switching signal by the recording sequence L of the complex cross-correlation values, a control unit generating a control signal at the fifth output, the determining interval for recording and reading cross-correlation values is connected to the first input of the first random access memory and the second input of the second random access memory, the second input of the first random access memory and the input of the calculation unit of the modules of the complex cross-correlation values are combined and connected to the output of the switch, the output of the calculation unit modules of complex values of cross-correlation, connected to the input of the comparison unit with a threshold, the comparison unit with a threshold, at the output of which a signal for exceeding a predetermined threshold value is generated, connected to the second input of the control unit, the sixth output of the control unit is connected to the combined third inputs of the first and second memory devices, the first random access memory device generating the J values of the selected complex cross-correlation values at the first and second outputs is connected respectively, with the first and second inputs of the block allocating groups of complex values of cross-correlation, the second storage device forming at the output e signal about the numbers J of the selected complex cross-correlation values, connected to the third input of the unit for identifying the groups of complex cross-correlation values, the unit for highlighting the groups of complex cross-correlation values, forming the selected groups of complex cross-correlation values at the first and second outputs, connected to the first and second the inputs of the phase correction unit and the first and second inputs of the unit for detecting single beam signals, at the third output are the selected independent complex values of the mutual correlation, connected to the third input of the unit for detecting single signals of rays, at the fourth output - a signal that determines the interval of arrival of each group of adjusted complex cross-correlation values, connected to the first input of the unit for detecting and evaluating the size of the cluster of beam signals, at the fifth output - a signal of time shifts groups of adjusted complex cross-correlation values, connected to the second input of the detection and estimation unit for the cluster of ray signals and the third input of the control unit, block phase correction, which generates adjusted values of selected groups of complex cross-correlation values at the output, is connected to the third input of the ray signal cluster size detection and estimation unit, the first output of the ray signal cluster size detection and estimation unit, which generates a signal about the size of the beam signal cluster at the first output, is the second output of the device, at the second output is the signal about the temporary position of the cluster of ray signals, is the third output of the device, at the third output is the signal defining the time interval for processing the group of cross-correlation values is connected to the fourth input of the control unit, the seventh output of the control unit is connected to the fourth input of the detection and estimation unit of the cluster of beam signals.

To achieve this goal, a method for detecting and estimating the size of a cluster of ray signals, which consists in detecting a cluster of ray signals in Q steps, when detecting a cluster of ray signals, use the generated complex values of the mutual correlation between the received signal and the reference signals, summarize the complex values of the mutual correlations form output values, according to the invention, the following sequence of actions (operations) is introduced:
- simultaneously with the detection of a cluster of ray signals, an estimate is made of the size of the cluster of signals in Q stages, where Q = N-1, N is the number of complex cross-correlation values in the selected group of cross-correlation values, and at each stage:
- form a sliding window, the size of which is equal to W = N-q + 1, where q is the number of the current stage,
- perform a scan of the selected group of complex correlation values by a sliding window with a step equal to the search step,
- at each scanning step, the complex cross-correlation values located inside the generated sliding window are summed up, and the ratio of the modules of the obtained sums of the complex cross-correlation values to the threshold values set for each sliding window size is calculated, and their corresponding temporary positions and sizes of the sliding windows are stored if these relationships exceed the value of unity,
- after completing the Q stages of scanning, the maximum value is selected from the stored relations of the modules of the sums of the complex cross-correlation values to the threshold values, and the cluster size and its temporal position are determined by the size and position of the sliding window corresponding to this maximum value, which are used as output values.

To solve the problem, in the block for detecting and evaluating the size of the cluster of ray signals, comprising a node for calculating the modules of the sums of the complex cross-correlation values and a node for selecting the maximum, according to the invention, the following are additionally introduced:
the first random access memory and integrator connected in series, the node for calculating the ratio of the modules of the sums of the complex cross-correlation values to the threshold values, the second random access memory, the control node, the threshold calculation node, the first and second registers, the first and second adders,
at the same time, new connections were introduced accordingly: the first input of the first random access memory is the third input of the ray signal cluster cluster size detection and estimation unit, the input of the unit for calculating the modules of the sums of the complex cross-correlation values is connected to the output of the integrator, the output of the node for calculating the modules of the sums of the complex cross-correlation values is connected to the first input of the node for calculating the ratio of the modules of the sums of the complex cross-correlation values to the threshold values, the output of which is connected to the first input of the second second random access memory, the second, third and fourth inputs of the second random access memory are connected respectively to the first, second and third outputs of the control unit, the first, second and third outputs of the second random access memory are connected to the first, second and third inputs of the maximum selection node, the first output of which is the first output of the block for detecting and estimating the size of the cluster of ray signals, the second output of the maximum selection node is connected to the first input of the first sum a matora, the output of which is the second output of the ray signal cluster cluster detection and estimation unit, the second input of the first adder is connected to the output of the second adder, the first and second inputs of which are connected respectively to the outputs of the first and second registers, the input of the second register is the fourth input of the detection and evaluation unit the size of the cluster of ray signals, the first input of the first register and the input of the control node are combined to form the first input of the detection and estimation unit for the cluster of ray signals, the second input of the first the first register is connected to the second input of the first random access memory, the fifth output of the control unit is connected to the input of the threshold calculation unit, the output of which is connected to the second input of the unit for calculating the ratio of complex sum modules the cross-correlation values to the threshold values, the sixth output of the control node is the third output of the detection and evaluation unit size of the cluster of beam signals.

A comparative analysis of the proposed method for searching for a multipath broadband signal with a prototype shows that the claimed method is distinguished by the presence of new significant features, namely that a sequential scan of the uncertainty region is performed with a step equal to or less than one chip of the expanding pseudorandom sequence (PSP), and an additional L- 1 reference signals coinciding in shape with the reference signal, and all L formed reference signals are shifted relative to each other by one element SP or less, when scanning, complex cross-correlation values between the received signal and L-1 additionally generated reference signals are calculated, additionally forming L-1 complex cross-correlation values, L complex cross-correlation values J complex cross-correlation values, the modulus of which exceeds the specified the threshold value P ₁ from J complex values of cross-correlation distinguish: adjacent complex values of cross-correlation, shifted in time relative to each other by one a chip or less of a chip, defining them as groups of complex cross-correlation values, the remaining complex cross-correlation values that are shifted relative to adjacent complex cross-correlation values by more than a chip are defined as independent complex cross-correlation values; in each group of complex cross-correlation values, the phases are corrected for each complex cross-correlation value, the cluster is detected and the size of the cluster of beam signals is determined using a group of corrected complex cross-correlation values for this group, the cluster of beam signals and its temporal position are memorized, single beam signals are detected using independent complex cross-correlation values for this, the temporal positions of the detected single signals are stored s rays.

 These significant distinguishing features make it possible to obtain a new technical effect, namely, to detect not individual components of a cluster of ray signals, but a cluster of signals as a whole, and thus improve the search characteristics of a multi-beam broadband signal.

 A comparative analysis of the inventive device for implementing the method of searching for a multi-beam broadband signal with a prototype showed that the inventive device is characterized by the following significant distinguishing features: L-1 first and L-1 second additional outputs of the reference signal generating unit are introduced, which are respectively in-phase and quadrature outputs of the reference signal which are connected to the corresponding L-1 third and L-1 fourth inputs of the correlation block, L-1 of the first additional outputs of the block control signals, which are control signals for the duration of the interval of coherent accumulations of cross-correlation values, which are connected to the corresponding L-1 fifth inputs of the correlation unit, a commutator, a unit for calculating modules of complex cross-correlation values, a threshold comparison unit, first and second random access memory devices, are introduced allocation of groups of complex cross-correlation values, a phase correction unit and a detection and estimation unit for a cluster of ray signals, and also introduced new relationships, listing are included in the characterizing part of the claims between said blocks.

 These significant distinguishing features of the claimed device make it possible to fully realize all the features of the proposed method for searching for a multipath broadband signal and to detect not individual components of a cluster of beam signals, but a cluster of signals as a whole and thus improve the search characteristics of a multipath broadband signal.

 A comparative analysis of the proposed method for searching for a multipath broadband signal and a device for its implementation with other technical solutions (analogs) known in the art did not reveal the features claimed in the characterizing part of the claims. Therefore, the claimed method and device for its implementation meet the criteria: "novelty", "significant differences", "non-obviousness" and meet the inventive step.

 A comparative analysis of the proposed method for detecting and evaluating the size of the cluster of ray signals with the prototype showed that the claimed method is significantly different from the prototype, namely: simultaneously with the detection of a cluster of ray signals, the size of the cluster of signals is evaluated in Q stages, where Q = N-1, N - the number of complex cross-correlation values in the selected group of cross-correlation values, and at each stage: form a sliding window, the size of which is W = N-q + 1, where q is the number of the current stage, scan After a group of complex correlation values of a sliding window with a step equal to the search step, at each scan step, the complex cross-correlation values inside the formed sliding window are summed up and the ratio of the modules of the obtained sums of the cross-correlation complex values to the threshold values established for each size of the sliding window is calculated , and remember them, if these relations exceed the value of unity, and the corresponding temporary positions and sizes of the sliding windows, after the completion of Q stage From the calculated ratios of the modules of the sums of the complex cross-correlation values to the threshold values, the maximum value is selected, and the cluster size and its temporary position are determined by the size and position of the sliding window corresponding to this maximum value, which are used as output values.

 These significant distinguishing features in comparison with the prototype allow you to get a new technical effect - simultaneously with the detection of a cluster of ray signals to determine its size.

 A comparative analysis of the claimed unit for implementing the method for detecting and evaluating the size of the cluster of ray signals with the prototype showed that the claimed unit is significantly different from the prototype, i.e. according to the invention, a first random access memory, an integrator, a node for calculating the ratio of the modules of the sums of the complex cross-correlation values to the threshold values, a second operational device, the first and second adders, the first and second registers, the threshold calculation node and the control node are additionally introduced, and new the relationship between the listed nodes and the elements of the flowchart.

 A comparative analysis of the proposed method for detecting and evaluating the size of the cluster of ray signals and the block implementing it with other technical solutions (analogues) did not allow to reveal the features claimed in the characterizing part of the claims. Therefore, the claimed method and unit for its implementation meet the criteria: "novelty", "significant differences", "non-obviousness" and meet the inventive step.

 In the aggregate, the claimed group of inventions: a method for searching a multipath broadband signal and a device for its implementation, a method for detecting and estimating the size of a cluster of beam signals and a unit that implements it, can improve the search performance of a multipath broadband signal by detecting not individual components of the cluster of beam signals, but a cluster of signals in general, i.e. solve the problem.

 The description of the claimed group of inventions is illustrated by graphic materials.

 FIG. 1 illustrates a cluster of a multipath signal: (a) a distribution of the power density of the signal beams, b) a pseudo-random sequence chip).

 Figure 2 is a block diagram of a prototype device for a search device for a multipath broadband signal.

 Figure 3 shows a block diagram of a device for detecting a cluster of a multipath signal.

 Figure 4 shows a block diagram of the inventive device search for a multipath broadband signal.

 In FIG. 5 shows an example implementation of the correlation unit 7 for implementing the inventive device.

 Figure 6 shows an example implementation of the block forming the reference signals 3 for the implementation of the inventive device.

 7 shows an example implementation of a unit for detecting single signals of beams 11 for implementing the inventive device.

 In FIG. 8 shows an example of a block allocation of groups of complex values of cross-correlation 24 for implementing the inventive device.

 Figure 9 shows an example implementation of the phase correction block 25 for implementing the inventive device.

 In FIG. 10 shows a block diagram of the inventive unit for detecting and estimating the size of a cluster of beam signals 26.

 Figure 11 shows an example implementation of the control unit 12 for the inventive device.

 The inventive device search for a multi-beam broadband signal (Fig. 4) contains an antenna 1, a receiver 2, a block for generating reference signals 3, a correlation unit 7, a control unit 12 and a unit for detecting single beam signals 11, the output of the antenna 1 is connected to the input of the receiver 2, the first and the second outputs of the receiver 2 are connected respectively to the first and second inputs of the correlation block 7, while the first and second inputs of the correlation block 7 are respectively in-phase and quadrature inputs, forming the information input of the correlation block 7, third the first and fourth inputs of the correlation block 7, which are respectively in-phase and quadrature inputs of the reference signal of the correlation block, are connected respectively to the first and second outputs of the block for generating the reference signals 3, the fifth input of the correlation block 7, which is the control input, is connected respectively to the first output of the control unit 12 forming at this output a control signal for the duration of the interval of coherent accumulations of cross-correlation values, the first input of the control unit 12 is connected to the output of the detection unit about beam signals 11, the second output of the control unit 12, forming a control signal for shifting the reference signals at this output, is connected to the input of the block for generating the reference signals 3, the third output of the control unit 12, which generates a signal determining the temporary position of the single beam signal at the third output, is the first output of the device according to the invention introduced: L-1 first and L-1 second additional outputs of the block forming the reference signals, which are respectively in-phase and quadrature outputs of the reference a signal that is connected to the corresponding L-1 third and L-1 fourth inputs of the correlation unit, L-1 of the first additional outputs of the control unit, which are control signals for the duration of the interval of coherent accumulations of cross-correlation values, which are connected to their corresponding L-1 fifth inputs correlation unit, switch 19, unit for calculating modules of complex cross-correlation values 20. unit for comparison with threshold 21, first 22 and second 23 random access memory, unit for identifying complex groups led mutual correlation 24, a phase correction block 25, and a block for detecting and evaluating the size of the cluster of beam signals 26, while the 2L outputs of the correlation unit 7, which generates signals L of the complex cross-correlation values at these outputs, are connected to the corresponding 2L first inputs of the switch 19, the second the input of the switch 19 and the first input of the second random access memory 23 are combined and connected to the fourth output of the control unit 12, forming at this output a control switching signal by the recording sequence L complex of mutual cross-correlation values, the control unit 12, which generates a control signal at the fifth output defining the interval for recording and reading cross-correlation values, is connected by the fifth output to the first input of the first random access memory 22 and the second input of the second random access memory 23, the second input of the first random access memory devices 22 and the input of the unit for calculating the modules of the complex values of the cross-correlation 20 are combined and connected to the output of the switch 19, the output of the unit for calculating the modules complex values of cross-correlation 20, connected to the input of the comparison unit with a threshold 21, a comparison unit with a threshold 21, the output of which generates a signal for exceeding a predetermined threshold value, connected to the second input of the control unit 12, the sixth output of the control unit 12 is connected to the combined third inputs of the first 22 and the second 23 storage devices, the first random access memory 22, forming on the first and second outputs J selected complex cross-correlation values, is connected respectively with the first and second m inputs of the block allocation of groups of complex values of mutual correlation 24, the second storage device 23, which generates an output signal about the numbers J selected complex values of mutual correlation, is connected to the third input of the block selection of groups of complex values of mutual correlation 24, the block selection of groups of complex values of cross correlation 24 forming the selected groups of complex cross-correlation values at the first and second outputs is connected respectively to the first and second inputs of the phase correction block 25 and the first and the second inputs of the unit for detecting single signals of rays 11, at the third output, the selected independent complex values of mutual correlation, connected to the third input of the unit for detecting single signals of rays 11, at the fourth output, a signal that determines the interval of arrival of each group of adjusted complex values of cross-correlation, connected to the first input of the block for detecting and estimating the size of the cluster of ray signals 26, at the fifth output, a signal about the time shifts of the groups of adjusted complex quantities mutually correlation, is connected to the second input of the detection and estimation unit for the cluster of ray signals 26 and the third input of the control unit 12, the phase correction unit 25, which generates the adjusted values of the selected groups of complex cross-correlation values at the output, is connected to the third input of the detection and evaluation unit of the cluster size ray signals 26, the first output of the detection and estimation unit for the cluster of ray signals 26, which forms a signal about the size of the cluster of ray signals at the first output, is the second output of the device, the second output is a signal about the temporary position of the cluster of ray signals, is the third output of the device, at the third output is a signal that determines the processing time interval for the group of cross-correlation values, connected to the fourth input of the control unit 12, the seventh output of the control unit 12 is connected to the fourth input of the detection unit and estimating the cluster size of the beam signals 26.

The correlation block 7 (Fig. 5) for the inventive multi-beam broadband signal search device contains L quadrature correlators 4 ₁ -4 _L and, respectively, each quadrature correlator, the first and second coherent batteries, respectively 5 ₁ -5 _L -6 ₁ -6 _L , the first inputs L quadrature correlators 4 ₁ -4 _L are combined, forming the first in-phase input of the correlation block 7, the second inputs of L quadrature correlators 4 ₁ -4 _{L are} combined, forming the second quadrature input of the correlation block 7, the third input of each of L quadrature correlators 4 ₁ -4 _L form a third-phase reference signal inputs of the correlation unit, the fourth input of each of the L correlators quadrature April ₁ -4 _L forms a fourth quadrature inputs a reference signal correlation unit 7, the first output of each of L, quadrature correlator April ₁ -4 _L connected to the second input of the first coherent battery corresponding to a given quadrature correlator, the second output of each of L, a quadrature correlator 4 ₁ -4 _{L is} connected to the second input of the second coherent battery corresponding to this quadrature correlator , the first inputs L of the first coherent batteries 5 ₁ -5 _L and the first inputs L of the second coherent batteries 6 ₁ -6 _{L are} combined to form the fifth input of the correlation block 7, the outputs L of the first coherent batteries 5 ₁ -5 _L and the outputs L of the second coherent batteries 6 ₁ -6 _L form 2L correlation unit 7 outputs.

 The reference signal generating unit 3 (FIG. 6) for the inventive multi-beam broadband signal search device comprises a pseudo-random sequence generator 29 (GPS) and a first 27 and second 28 delay line, the input of the GPS 29 is the input of the reference signal generating unit 3, the first output of the GPS 29, forming a common-mode reference signal at this output, is connected to the input of the first 27 delay line, the second GPS output 29, forming a quadrature reference signal at this output, is connected to the input of the second delay line 28, the outputs are the howling 27 and second 28 delay lines are the outputs of the block for generating the reference signals 3, respectively, in-phase and quadrature outputs of the formed L reference signals shifted relative to each other by one element of the SRP or less.

 The unit for detecting single signals of beams 11 (Fig. 7) for the inventive device for searching for a multi-beam broadband signal contains serially connected unit for calculating module 8, incoherent battery 9 and node for calculating threshold 10, the output of which is the output of unit for detecting single signals of beams 11, the second input of incoherent battery 9 is the third input of the unit for detecting single signals of rays 11, and the first and second inputs of the computation unit of module 8 are respectively the first and second inputs of the detection unit angling single beam signals 11.

 The unit for selecting groups of complex cross-correlation values 24 (Fig. 8) for the inventive search device for a multi-beam broadband signal contains the first 30, second 31, third 32 and fourth 33 registers and a comparison node 34, while the inputs of the first 30, second 31 and third 32 registers are respectively the first, second and third inputs of the unit for allocating groups of complex values of mutual correlation 24, the outputs of the first 30 and second 31 registers are respectively the first and second outputs of the unit for allocating groups of complex values of mutual correlation 24, the output of the third 32 registers is connected to the first input of the comparison node 34 and the input of the fourth 33 registers, the output of the fourth 33 registers is connected to the second input of the comparison node 34 and is the fifth output of the block allocation of groups of complex values of mutual correlation 24, the first and second outputs of the comparison node 34 are, respectively, the fourth and third outputs of the block allocating groups of complex values of cross-correlation 24.

 The phase correction block 25 (Fig. 9) for the inventive multi-beam broadband signal search device comprises series-connected cross-correlation value estimating unit 35 and a multiplier 36, while the first inputs of the mutual correlation value estimating unit 35 and multiplier 36 are combined to form a first block input phase correction 25, the second inputs of the phase estimation unit of the cross-correlation values 35 and the multiplier 36 are combined to form the second input of the phase correction unit 25, the output of the multiplier 36 is the output of the phase correction unit 25.

 The unit for detecting and evaluating the cluster of ray signals 26 (Fig. 10) for the inventive method for detecting and evaluating the cluster of ray signals contains a node for calculating modules of the sums of complex cross-correlation values 39 and a node for selecting a maximum of 42, according to the invention, the following are additionally introduced: serially connected first random access memory 37 and integrator 38, a node for calculating the ratio of modules of sums of complex cross-correlation values to threshold values 40, a second random access memory 41, a control node 43, a node threshold calculations 44, the first 45 and second 45 registers, the first 46 and second 47 adders, wherein: the first input of the first random access memory 37 is the third input of the ray signal cluster cluster size detection and estimation unit 26, the input of the node for calculating the modules of the sums of complex cross-correlation values 39 is connected to the output of the integrator, the output of the node for computing the modules of the sums of the complex cross-correlation values 39 is connected to the first input of the node for computing the ratio of the modules of the sums of the cross-correlation complex values to Horog 40, the output of which is connected to the first input of the second random access memory 41, the second, third and fourth inputs of the second random access memory 41 are connected respectively to the first, second and third outputs of the control unit 43, the first, second and third outputs of the second random access memory 41 connected respectively to the first, second, and third inputs of the maximum selection node 42, the first output of which is the first output of the detection and estimation unit for the cluster of ray signals 26, the second the stroke of the maximum selection unit 42 is connected to the first input of the first adder 46, the output of which is the second output of the ray signal cluster cluster detection and estimation unit 26, the second input of the first adder 46 is connected to the output of the second adder, the first and second inputs of which are connected respectively to the outputs of the first 45 and the second 48 registers, the input of the second register 48 is the fourth input of the detection and estimation unit for the cluster of ray signals 26, the first input of the first register 45 and the input of the control unit 43 are combined to form the first input d of the detection unit and estimating the size of the cluster of beam signals 26, the second input of the first register 45 is the second input of the unit for detecting and evaluating the size of the cluster of beam signals 26, the fourth output of the control unit 43 is connected to the second input of the first random access memory 37, the fifth output of the control unit 43 is connected with the input of the node for calculating the threshold 44, the output of which is connected to the second input of the node for calculating the ratio of the modules of the sums of the complex values of cross-correlation to the values of the threshold 40, the sixth output of the control node 43 is is the third output of the block for detecting and estimating the size of the cluster of ray signals 26.

 The control unit 12 (Fig.11) for the inventive device search for multipath broadband signal contains a shift register 49, first 50, second 51, third 52 and fourth 53 counters, first 54, second 55, third 56, fourth 57 and fifth 58 logic gates " AND, multiplier 59, first 60 and second 61 logic gates OR, first 62 and second 63 triggers, inverter 64, adder 65, register 66, clock generator 67, while L first outputs of the shift register 49 are respectively the first outputs control unit 12, the second output of the shift reg tra 49 is a second output of the control unit and is connected to the combined first inputs of the first NAND gate; "And" 60 and the first trigger 62, the input of the shift register 49 is combined with the input of the third counter 52 and connected to the output of the first counter 50, the input of the first counter 50, the first input of the first logical element "And" 54 and the first input of the fifth logical element "And" 58 are combined and connected to the output of the clock generator 67, the input of the second counter 51 is connected to the output of the first logic element “I” 54, the first output of the second counter 51 is the fourth output of the control unit 12, and the second output of the second counter 51 is connected to the second input of the first igger 62 and the second input of the first OR gate 60, the output of the first trigger 62 is connected to the combined input of the inverter 64, the first input of the third AND gate 56 and the second input of the first AND gate 54 and is the fifth output of the control unit 12 , the output of the inverter 64 is connected to the first input of the second logical element "OR" 61, the second input of which is combined with the second input of the fifth logical element "AND" and connected to the output of the third logical element "AND" 56, the second input of the third logical element "AND" 56 yavl is the second input of the control unit 12, the first input of the adder 65 is the third input of the control unit 12, the output of the adder is connected to the input of the register 66, the output of which is connected to the first input of the fourth logical element "AND" 57, the output of which is the third output of the control unit 12, the second the input of the fourth logical element "AND" 57 is the first input of the control unit 12, the output of the third counter 52 is connected to the input of the multiplier 59, the output of which is connected to the second input of the adder 65 and is the seventh output of the control unit 12, the output of the second AND gate 55 is the sixth output of the control unit 12, the first input of the second AND gate 55 is connected to the output of the second OR gate 61, the second input of the second AND gate 55 is connected to the first output of the fourth counter 53, the second output of which is connected to the first input of the second trigger 63, the second input of the second trigger 63 is combined with the first input of the fourth counter 53 and connected to the output of the first logical element "OR" 60, the output of the second trigger 63 is connected to the third input of the fifth the AND gate 58, the fourth input of which is the fourth input of the control unit 12, the output of the fifth AND gate 58 is connected to the second input of the fourth counter 53.

 Implement the inventive method of searching for a multipath broadband signal on the device, a block diagram of which is shown in figure 4.

 The input signal from the antenna 1 enters the receiver 2, which amplifies it, filters it, converts it to a video frequency and converts it to digital form. Digital samples of the in-phase and quadrature component of the signal from the receiver 2 are fed to the first in-phase and second quadrature inputs of the correlation block 7, forming the information input of block 7.

 The block for generating the reference signals 3 generates L in-phase and L quadrature reference signals shifted relative to each other by one element of the SRP or less, these signals are supplied respectively to the third and fourth inputs of the correlation block 7.

 The control unit 12 generates a control signal with an interval of coherent accumulations of cross-correlation values for the in-phase and quadrature components of the signal, which comes from the first output of the control unit 12 to the fifth input of the correlation unit 7.

Correlation unit 7, containing L parallel quadrature correlators 4 ₁ -4 _L (Fig. 5), each of which is a channel for detecting beam signals, calculates the complex values of the cross-correlation between the signal coming from receiver 2 and L reference signals, forming, thus way of output, L complex cross-correlation values (2L outputs).

 The output signals from the correlation unit 7 are supplied to the first inputs of the switch 19.

 Using a switch 19, a unit for calculating modules of complex cross-correlation values 20, a comparison unit with a threshold 21 and a control unit 12, Q complex cross-correlation values, the module of which exceeds a predetermined threshold value, are extracted from L complex cross-correlation values and written to the first operational memory device 22 (RAM).

 Using the control unit 12, the numbers of the allocated Q complex cross-correlation values are determined, which are equal to the numbers of the detection channels (quadrature correlators) of the correlation unit 7, at the output of which they are received and write them to the second random access memory 23 (RAM).

 The control unit 12 generates a control signal, which comes from the fifth output to the second input of the second random access memory 23 (RAM) and the first input of the first random access memory 22. According to this control signal, the RAM 22 records the complex cross-correlation values, the RAM 23 records the numbers of the allocated Q complex values of cross-correlation.

 Then Q complex values of cross-correlation, as well as the numbers of these values, are read from RAM 22 and RAM 23, respectively, and are fed to the block allocation groups of complex values of cross-correlation 24.

 In the unit for separating groups of complex cross-correlation values 24 from Q complex cross-correlation values, adjacent complex cross-correlation values separated in time relative to each other by one chip or less of the chip are extracted. The obtained groups of complex values of cross-correlation come from the first and second outputs of block 24, respectively, to the first and second inputs of the phase correction block 25 and the first and second inputs of the block for detecting single signals of rays 11.

 From the third output of the unit for identifying groups of complex cross-correlation values 24 to the third input of the unit for detecting single signals of rays 11, independent complex cross-correlation values are received that are shifted relative to the selected groups of adjacent complex cross-correlation values by more than a chip, and the clock signal to process these values in single signal detection unit.

 The selected groups of complex cross-correlation values are sent to the phase correction block 25.

 From the fourth and fifth outputs of the unit for identifying groups of complex cross-correlation values 24, a signal is received at the first and second inputs of the unit for detecting clusters of ray signals 26, which determines the arrival interval of each group of complex cross-correlation values and a signal about the time shifts of the group of adjusted complex cross-correlation values.

 In block 25, in each group of complex cross-correlation values, phase correction of each complex cross-correlation value is performed. The phase correction of each complex cross-correlation value is performed, for example, by multiplying by the complex value with a modulus equal to one and with a phase equal to the phase estimate of the complex cross-correlation value taken with the opposite sign. The adjusted values are sent to the unit for detecting and evaluating the size of the clusters of ray signals 26.

 Block 26 performs detection of clusters of ray signals and determines the temporal position of the detected cluster of ray signals, generates two output signals at the output: from the first output, a signal about the size of the detected cluster of ray signals is received, and from the second output, a signal about the temporary position of the detected cluster of ray signals.

 The control unit 12 generates control signals for the correlation unit 7, the reference signal generation unit 3, the switch 19, the first 22 and the second 23 random access memory (RAM) and the detection and evaluation unit for the size of the cluster of beam signals 26 and ensures the joint operation of all units of the device to perform set task.

 For a better understanding of the operation of the inventive device search for a multipath broadband signal, let us consider in more detail the operation of the blocks included in the structure of this device. The block diagrams of these devices are given as examples for implementing the inventive device.

To form L complex cross-correlation values, the correlation unit 7 contains L quadrature correlators 4 ₁ -4 _L (Fig. 5), each of which represents a beam signal detection channel. Each quadrature correlator 4 ₁ -4 _L corresponds to the first and second coherent batteries, respectively, 5 ₁ -5 _L and 6 ₁ -6 _L , which, according to the control signal from block 12, coherently accumulate cross-correlation values for the in-phase and quadrature components of the signal, respectively.

 According to the received signals, the correlation unit 7 calculates the complex values of the cross-correlation between the signal coming from the receiver 2 and L reference signals, accumulates them on the set accumulation interval, receiving at the output L the complex values of the mutual correlation.

 To calculate the L complex values of the cross-correlation, it is necessary to form L in-phase and L quadrature reference signals, therefore, it is advisable to perform the block forming the reference signals 3 as shown in Fig.6. The GPSSP 29 generates in-phase and quadrature reference signals, respectively, and feeds respectively the inputs of the first 27 and second 28 delay lines. The first 27 delay line generates L in-phase reference signals at the outputs, and the second 28 delay line forms L quadrature reference signals, which are in-phase and quadrature reference signals of block 3.

 The detection unit of single signals of the rays 11 (Fig.6) can be performed in various ways. For example, can be performed in the same way as in the prototype. The circuit of this device is designed in such a way that it allows to detect ray signals, but is not able to detect clusters of ray signals, and does not evaluate the size of the cluster of ray signals. Therefore, the authors deliberately did not change the structure of this block, leaving the block diagram the same, changed the connections (signals arriving at the inputs of this block), adjusting the operation of the block so that it would detect single beam signals. Therefore, the block 11 is mentioned in the restrictive part of the formula (this is a common feature with the prototype), and the connections - the first, second and third inputs connected respectively to the first, second and third outputs of the block 24 are new, they are included in the distinctive part of the claims.

 The unit for detecting single beam signals is made in the form of series-connected blocks for calculating the module 8, incoherent battery 9 and the node for calculating the threshold. The clock signal from the block selection of groups of complex values of cross-correlation 24 determines the points in time at which it is necessary to perform a comparison with a threshold.

 In the unit for identifying groups of complex cross-correlation values 24 (Fig. 8), the input in-phase and quadrature components of the cross-correlation value (Q of the selected complex cross-correlation values), as well as the number of the subsequent value, which is equal to the number of the detection channel (quadrature correlator) of the correlation block 7, the output of which this value is obtained, are recorded in registers 30-32.

 The input in-phase and quadrature components of the cross-correlation value from the outputs of the registers of the first 30 and second 31 registers are fed to the output of block 24.

 When recording in registers 30-32 of the subsequent cross-correlation value, its number is overwritten in the fourth register 33, and the number of the "new" subsequent value is recorded in the third register 32. Thus, in one register 33, the number of the current cross-correlation values is recorded, and in the other 32, the next. The output signals of these registers 32 and 33 are compared in the comparison node 34. If the numbers differ by one, then the comparison node 34 generates a signal that determines the interval of receipt of the group of complex cross-correlation values. Otherwise, a clock signal for a single signal detection unit (sign of a single beam signal).

 The numbers of the current cross-correlation values, a signal defining the arrival interval of the group of complex cross-correlation values and a clock signal for the single signal detection unit (sign of a single beam signal) are supplied to the outputs of block 24.

 In the phase correction unit 25 (Fig. 9), the output signals from the unit for allocating groups of complex cross-correlation values 24 are fed to the combined first and second inputs of the phase estimation unit of the cross-correlation values 35 and the multiplier 36. In the node 35, the phase of the cross-correlation value is estimated. The obtained estimate of the phase of the cross-correlation value is fed to the third input of the multiplier 36. In the multiplier 36, this value is multiplied by a complex quantity with a modulus equal to unity and a phase equal to the estimate of the phase of the complex cross-correlation value taken with the opposite sign. The obtained value is fed to the third input of the detection and estimation unit of the cluster of ray signals 26.

 Let us consider in more detail the operation of the unit for detecting and estimating the size of clusters of ray signals 26 (Fig. 10), since this block, as part of the inventive device for searching for a multi-beam broadband signal, detects and estimates the size of the cluster of ray signals, i.e. implements the second claimed method in the claimed group of inventions. This unit fully implements all the features of the second proposed method, is distinguished by the novelty and non-obviousness of the solution to the problem.

 In the unit for detecting and evaluating the size of the clusters of ray signals 26 (Fig. 10), the adjusted cross-correlation values belonging to one group are recorded in the first random access memory 37 (RAM). The values are written to the first RAM 37 based on a signal about the time shifts of the group of processed complex quantities from the block for selecting groups of complex cross-correlation values 24, which is fed to the first input of the detection and estimation unit cluster size of the beam signals 26 and then to the control unit 43. This block generates a write signal for the first RAM 37. A signal about the time shifts of the group of processed complex cross-correlation values is recorded in register 45 by a signal that determines the interval of arrival of the group of complex cross-correlation values, which comes from the block allocation groups of complex values of the cross-correlation 24 to the second input of block 26.

 The detection and estimation of the size of the cluster of ray signals is performed in Q steps, where Q = N-1, N is the number of complex cross-correlation values in the recorded group.

 At each stage, a recorded group of complex correlation values is scanned with a sliding window of size W = N-q + l, where q is the number of the current stage. Scanning is performed by repeatedly reading from the first RAM 37 W = N-q + l complex cross-correlation values. At the first reading, the first element of the group is read first, and the last is the element of the group with the number W. At the second reading, the second element of the group is read first, and the last is the element of the group with the number W + 1. With each reading, the numbers of the first and last readable elements increase by one. Reading ends after reading the last item in the group. For example, suppose a group consists of five elements, and the size of the window is three. Then, at the first reading, the first second and third elements are read, at the second - the second, third and fourth elements, at the third - the third, fourth and fifth elements. Reading ends here, since the last element in the group has been read.

 Each reading performs sequential summation with accumulation of cross-correlation values, using the integrator 38, calculating the modulus of this sum and calculating the ratio of the obtained module to the threshold value set for this sliding window, using nodes 39 and 40, respectively.

 If the ratio of the received module to the threshold value is greater than one (in node 40), then in the second RAM 41, the value of the obtained ratio and the corresponding temporary position and size of the sliding window are stored. The temporary position of the window is determined by the number of the first element of the group to be read. The values of the temporary position and size of the sliding window are recorded in the second RAM 41 from the control unit 43.

 After completing the Q calculation steps, from all the obtained relations of the modules of the sums of the complex cross-correlation values to the threshold values, the maximum value is selected using the maximum selection node 42 for this operation. For this, the values of the module relations and the corresponding temporary positions and sizes of the sliding window are read from the second RAM 41 to the node for selecting the maximum 42, which determines the maximum ratio and remembers the corresponding temporary position and size of the sliding window. The cluster size is determined by the size of the sliding window corresponding to this maximum value.

 The signal determining the size of the cluster, from the first output of the node selecting the maximum 42 is supplied to the first output of the detection and evaluation unit size of the cluster of beam signals 26.

 The temporary position of the sliding window relative to the temporary position of the first quantity from the group of processed complex quantities from the second output of the maximum selection node 42 is supplied to the first input of the first adder 46, and the second time of the first adder 46 from the second adder 47 receives the value of the temporary position of the group of processed complex quantities relative to the beginning search area, which is equal to the sum of the temporary position of the group of processed complex quantities relative to the temporary position of the first of L complex GOVERNMENTAL quantities and time position of this value relative to the boundary search area that are recorded on the first 45 and second registers 48, respectively. The output signal of the first adder 46 determines the temporary position of the cluster and is fed to the second output of block 26.

 The control node 43 controls the sequence of write and read operations of the first RAM 37), calculates the ratio of the modules of the sums of the complex values of the cross-correlation to the corresponding thresholds, write and read the second RAM 41 (control inputs).

 After completing the Q calculation steps, the control unit 43 generates a signal for detecting the cluster of beam signals (sixth output), which is the third output of the detection and estimation unit for the cluster of beam signals 26.

 The control unit 12 can be implemented in various ways. One possible implementation of the control unit 12 is shown in Fig.11.

 The control unit 12 (Fig.11) operates as follows.

 The first counter 50 generates a signal for the end of the accumulation interval, which is fed to the inputs of the shift register and the third counter.

 CL of the first outputs of the shift register 49, respectively, the first outputs of the control unit 12 receive signals that control the duration of the interval of coherent accumulations of cross-correlation values. From the second output of the register 49 to the second output of the control unit 12, the shift signal of the reference generator by L elements of the pseudo-random sequence (chips) is supplied to the first input of the first OR gate 60 and the first input of the first trigger 62.

 The shift signal of the reference generator sets the first flip-flop 62 to a "single state", in which a signal with the level of a "logical unit" is output from the output of the first flip-flop 62. The “single state” of the first flip-flop 62 corresponds to the state of reading the output values of the correlators and writing them to the first RAM 22. The output signal of the first flip-flop 62, which determines the write and read interval from the first 22 and second 23 RAM, is sent to the fifth output of the control unit 12. "Single "the output signal of the first trigger 62 allows the passage of clock pulses through the circuit of the first logic element" AND "54 to the second counter 51, which generates a signal that controls the switching (switching) of the output signals of the correlation unit and 7 when they are read and written to the first RAM 22.

 To write to the first 22 and second 23 RAM, the fourth counter 53 generates a write address signal. In this case, the counter is set to the initial state by the shift signal of the reference oscillator that passed through the second logical element "OR" 55, and the address changes only when the threshold exceeds the threshold signal from the comparison unit.

 After completing the recording in the first 22 and second 23 RAM, the second counter 51 generates a signal to end the recording, which through the first logical element "OR" 60 sets the fourth counter 53 to the initial state, the first trigger 62 to the zero state (signal of the "zero" logical level at the output) and the second trigger 63 to a single state. Then reads from the first 22 and second 23 RAM.

 When reading, the fourth counter 53 generates a read address signal. If a signal is received from the detection and estimation unit for the size of the cluster of ray signals 26, which determines the processing time interval for the group of cross-correlation values in the detection and evaluation unit for the size of the cluster of ray signals 26, then the reading stops until the processing is completed. To do this, the clock pulses and the signal that determines the processing time interval are combined in a logical circuit in the second logical element "AND" 55.

 The third counter 52 generates a shift number of the reference signal by L (L is the number of correlators) of the search steps. The product of this number by L determines the shift number of the reference signal of the first correlator, which is fed to the block for detecting and estimating the size of the cluster of beam signals 26 and to the input of the adder 65. A signal defining the shift a single beam relative to the shift of the reference signal of the first correlator. The output of the adder 65 receives a signal that determines the shift of a single beam relative to the beginning of the search area. This shift, which determines the temporary position of the detected signal of a single beam, is recorded in the register and, if there is a sign of detection of a single beam, is fed to the third output of the control unit 12.

 An advantage of the claimed group of inventions, including a method for searching for a multi-beam broadband signal and a device for its implementation, a method for detecting and estimating the size of a cluster of ray signals and a unit that implements it, created in a single inventive concept, in comparison with known technical solutions in the art is that the claimed group of inventions together allows to improve the search characteristics of a multipath broadband signal by detecting not individual components of the cluster Dr. beam signals, and signals the cluster as a whole.

 In addition, the proposed group of inventions is implemented on blocks and elements known in radio engineering, which makes it possible to use them in modern cellular radio communication systems and in CDMA systems of the second, third and fourth generations.

Claims (5)

1. A method of searching for a multi-beam broadband signal, which consists in sequentially scanning the region of uncertainty, forming a reference signal, which is a copy of the received signal, when scanning, the complex correlation value between the received signal and the generated reference signal is calculated, forming a complex cross-correlation value, and signal detection, characterized in that the sequential scanning of the region of uncertainty is performed with a step equal to or before one chip of the expanding pseudo-random sequence (PSP), additional L-1 reference signals are generated that match the shape of the reference signal, and all L formed reference signals are shifted relative to each other by one element of the PSP or less, when scanning, the complex values of the mutual correlation between the received signal and L-1 additionally formed reference signals, forming additionally L-1 complex values of cross-correlation, isolated from L complex values of cross-correlation J com integrated polices quantities cross-correlation, the module exceeds a predetermined threshold value P ₁ from J complex values crosscorrelation isolated: related integrated value of the mutual correlation shifted in time relative to each other by one chip or less chip, identifying them as a group of complex values the cross-correlation, the remaining complex cross-correlation values that are shifted relative to adjacent complex cross-correlation values by more than a chip are defined as independent complex cross-correlation values correlation, in each group of complex cross-correlation values, the phases are corrected for each complex cross-correlation value, the cluster is detected and the size of the cluster of ray signals is determined, using the group of adjusted complex cross-correlation values for this, the cluster of beam signals and its temporal position are stored, detection is performed single ray signals, using for this independent complex cross-correlation values, remember the temporary positions of the detected ray beam signals.  2. The method according to claim 1, characterized in that the phase correction of each complex cross-correlation value is performed by multiplying by the complex value with a module equal to one and with a phase equal to the phase estimate of the complex cross-correlation value taken with the opposite sign.  3. A search device for a multipath broadband signal containing an antenna, a receiver, a block for generating reference signals, a correlation unit, a control unit and a unit for detecting single beam signals, the antenna output is connected to the input of the receiver, the first and second outputs of the receiver are connected respectively to the first and second inputs of the block correlation, while the first and second inputs of the correlation block are respectively in-phase and quadrature inputs, forming the information input of the correlation block, the third and fourth inputs of the block relations, which are respectively in-phase and quadrature inputs of the reference signal of the correlation block, are connected respectively to the first and second outputs of the block for generating the reference signals, the fifth input of the correlation block, which is respectively the control of the input, is connected respectively to the first output of the control block, which forms a control signal for the duration the interval of coherent accumulations of cross-correlation values, the first input of the control unit is connected to the output of the unit for detecting single signals learn, the second output of the control unit, which forms a control signal for shifting the reference signals at this output, is connected to the input of the block for generating the reference signals, the third output of the control unit, which generates a signal at the third output that determines the temporary position of the signal of a single beam, is the first output of the device, characterized in that L-1 of the first and L-1 of the second additional outputs of the block for generating the reference signals are introduced, which are, respectively, in-phase and quadrature outputs of the reference signal, which are connected s with the corresponding L-1 third and L-1 fourth inputs of the correlation unit, L-1 of the first additional outputs of the control unit, which are control signals for the duration of the interval of coherent accumulations of cross-correlation values, which are connected to the corresponding L-1 fifth inputs of the correlation unit, a switch, a unit for computing modules of complex cross-correlation values, a threshold comparison unit, first and second random access memory, a unit for allocating groups of complex cross-correlation values of phase and b detection and estimation of the cluster size of the ray signals, with 2L outputs of the correlation unit generating L complex cross-correlation signals at these outputs connected to the corresponding 2L first inputs of the switch, the second input of the switch and the first input of the second random access memory are combined the fourth output of the control unit, forming at this output a control switching signal by the recording sequence L of the complex cross-correlation values, the control unit, forming the fifth control signal at the fifth output, which determines the recording and reading interval of cross-correlation values, is connected to the first input of the first random access memory and the second input of the second random access memory, the second input of the first random access memory and the input of the unit for calculating the modules of complex cross-correlation values are combined and connected with the output of the switch, the output of the unit for calculating the modules of complex cross-correlation values is connected to the input of the comparison unit from time to time , a comparison unit with a threshold, at the output of which a signal for exceeding a predetermined threshold value is generated, is connected to the second input of the control unit, the sixth output of the control unit is connected to the combined third inputs of the first and second memory devices, the first random access memory generating values at the first and second outputs J selected complex values of cross-correlation, connected respectively to the first and second inputs of the block selection of groups of complex values of cross-correlation, the second memory a generating device that generates an output signal about the numbers J of the selected complex cross-correlation values is connected to the third input of the unit for identifying the groups of complex cross-correlation values, a unit for extracting the groups of complex cross-correlation values that forms the selected groups of complex cross-correlation values at the first and second outputs is connected respectively, with the first and second inputs of the phase correction unit and the first and second inputs of the unit for detecting single beam signals, on the third output are dedicated independent complex cross-correlation values, connected to the third input of the single beam signal detection unit, at the fourth output, a signal defining the arrival interval of each group of adjusted complex cross-correlation values, connected to the first input of the beam signal cluster size detection and estimation unit, at the fifth output, a signal on the time shifts of the groups of adjusted complex cross-correlation values is connected to the second input of the detection and estimation unit for the cluster of ray signals and t by the input of the control unit, the phase correction unit, which generates the adjusted values of the selected groups of complex cross-correlation values at the output, is connected to the third input of the beam signal cluster size detection and estimation unit, the first output of the beam signal cluster size detection and estimation unit, which generates a signal at the first output about the size of the cluster of ray signals, is the second output of the device, at the second output - a signal about the temporary position of the cluster of ray signals, is the third output of the device, output retem - signal defining a time interval handling crosscorrelation magnitudes group is connected to fourth input of the control unit, the seventh output control unit is connected to the fourth input detecting unit and estimate the size of a cluster of beam signals.  4. A method for detecting and evaluating the size of a cluster of ray signals, which consists in detecting a cluster of ray signals in Q steps, when detecting a cluster of ray signals, the generated complex cross-correlation values between the received signal and the reference signals are used, summarize the complex cross-correlation values, form output quantities, characterized in that simultaneously with the detection of a cluster of ray signals, an estimate of the size of the cluster of signals is performed in Q stages, where Q = N-1, N is the number of comp eksnyh cross correlation values in the selected group of cross-correlation values, wherein at each stage form a sliding window whose size is equal to W = N-q + 1, where q - number of the current stage; scanning a selected group of complex correlation values with a sliding window in steps; equal to the search step, at each scanning step sum the complex mutual correlation values inside the generated sliding window, and compute the ratio of the modules of the obtained sums of complex cross-correlation values to the threshold values set for each size of the sliding window, and remember them if these ratios exceed the value units, and their corresponding temporary positions and sizes of sliding windows, after completing the Q stages of scanning from the stored relations of the modules of the sums of complex quantities In cross-correlation with threshold values, the maximum value is selected and the size and position of the sliding window corresponding to this maximum value determine the cluster size and its temporary position, which are used as output values.  5. A unit for detecting and estimating the size of a cluster of ray signals, comprising a node for calculating modules of the sums of complex cross-correlation values and a node for selecting a maximum, characterized in that the first random-access memory and integrator are introduced in series, a node for calculating the ratio of modules of the sums of complex cross-correlation values to the values threshold, second random access memory, control node, threshold calculation node, first and second registers, first and second adders, with the first input the first random access memory is the third input of the ray signal cluster cluster size detection and estimation unit, the input of the unit for calculating modules of sums of complex cross-correlation values is connected to the output of the integrator, the output of the unit for calculating modules of sums of complex cross-correlation values is connected to the first input of the unit for calculating the ratio of modules of sums of complex values cross-correlation to threshold values, the output of which is connected to the first input of the second random access memory, second, third the second and fourth inputs of the second random access memory are connected respectively to the first, second and third outputs of the control unit, the first, second and third outputs of the second random access memory are connected respectively to the first, second and third inputs of the maximum selection node, the first output of which is the first output of the block detection and estimation of the size of the cluster of ray signals, the second output of the maximum selection node is connected to the first input of the first adder, the output of which is the second output of the update unit arrays and estimates the size of the cluster of ray signals, the second input of the first adder is connected to the output of the second adder, the first and second inputs of which are connected respectively to the outputs of the first and second registers, the input of the second register is the fourth input of the detection and estimation unit of the cluster of ray signals, the first input of the first the register and the input of the control unit are combined to form the first input of the detection and estimation unit for the cluster of ray signals, the second input of the first register is the second input of the detection unit and the size of the cluster of beam signals, the fourth output of the control unit is connected to the second input of the first random access memory, the fifth output of the control unit is connected to the input of the threshold calculation unit, the output of which is connected to the second input of the calculation unit of the ratio of the sum modules of the complex cross-correlation values to the threshold value, sixth the output of the control node is the third output of the detection and evaluation unit cluster size of the beam signals.

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