RU2341026C1 - Direct and reverse data transmission and reception system - Google Patents

Abstract

FIELD: information technologies.

SUBSTANCE: invention refers to communication engineering and can be used as direct and reverse data transmission and reception system (DTRS) enabling data delivery from information source to consumers using digital data communication. DTRS contains direct and reverse series functionally connected heterogeneous information sources, interpolator, e.g. with time division, of binary digital streams (BDS), high-frequency signal modulator with carrier frequency generator, transmitter, receiver, high-frequency signal demodulator, digital stream to BDS demultiplexer of information consumers and, if necessary, formatting and multiple access units, e.g. with code division. DTRS contains provided in front of modulator direct, including additionally, interpolator generating ordered BDS synchronous per binary digit and transforming them to M_n- digit stream. Demodulator is followed with demultiplexer transforming M_n- digit stream to BDS synchronously per step supplied in order similar to that for reading, to outputs of incorporated demultiplexer.

EFFECT: higher performance of frequency resource, simplified solution for EMC support, eg of short-range radio navigation systems and GSM-900 networks.

2 cl, 2 dwg, 1 tbl

Description

The invention relates to communication technology, and more specifically to information transmission and reception systems (SPPI) in the forward and reverse directions from information sources to its consumers via digital communication. The growing number of operators and subscribers, including cellular communications, exacerbates the problem of rational use of the frequency resource, which, in turn, requires further development and improvement of systems and methods for transmitting and receiving information. The invention allows to increase the capacitance of any existing passive interference suppression system for a given number of frequency bands allocated for operation of the system or to provide a specified capacity of the system with a smaller number of frequency bands, i.e. save frequency resource and increase the technical and economic efficiency of communication systems, taking into account all the components that affect its full cost and technical indicators.

A known system for transmitting and receiving information [Radio engineering: Encyclopedia. / Ed. Yu.L. Mazora et al. - M.: Dodeka-XXI Publishing House, 2002, pp. 63-64], the features of which are implemented, in essence, in all relevant systems, which is an analogue of the proposed technical solution. This system contains functionally sequentially connected information source, physical-electrical information converter, encoder, transmitting device, communication channel, receiving device, decoder, electrophysical information converter, information consumer.

, из L_k источников информации подключен, в том числе, при необходимости, через свой блок форматирования информации в цифровой поток и блок уплотнения, например, с временным разделением синхронизированных бинарных цифровых потоков с L_k входами и одним выходом k-того, где

, цифрового потока из n-той группы источников информации, где

, к модулятору высокочастотного сигнала, снабженному генератором несущей частоты и соединенному с передатчиком прямого направления, функционально связанным через канал передачи, совместимый с передаваемым высокочастотным сигналом, по крайней мере с одним приемником прямого направления, который подключен через демодулятор высокочастотного сигнала и, при необходимости, через блок разуплотнения синхронизированного цифрового потока с одним входом и L_k выходами и свой блок форматирования цифрового потока в информацию к соответствующему потребителю информации, при этом в обратном направлении каждый из источников информации подключен, при необходимости, через свой блок форматирования информации в цифровой поток и блок уплотнения, например, с временным разделением синхронизированных бинарных цифровых потоков с L_n входами и выходом к модулятору высокочастотного сигнала, снабженному генератором выделенной источнику информации несущей частоты и соединенному с передатчиком обратного направления, функционально связанным через канал передачи, совместимый с передаваемым высокочастотным сигналом, с приемником обратного направления, который подключен через демодулятор высокочастотного сигнала и, в том числе, при необходимости, через блок разуплотнения синхронизированного цифрового потока с одним входом и L_k выходами и свой блок форматирования цифрового потока в поток информации к соответствующему потребителю информации, причем все указанные блоки функционально связаны с системой синхронизации, а при необходимости обеспечения множественного доступа, например, с кодовым разделением перед передатчиками прямого и обратного направлений введены умножители модулированного сигнала s_n(t)=A_n(t)cos[ω₀t+ψ_n(t)] на кодовый сигнал g_n(t), причем кодовые функции {g_n(t)} приблизительно взаимно ортогональны, и блоки множественного доступа, имеющие N входов для доступа потоков сигналов g_n(t)s_n(t), в том числе других групп источников информации, и их суммирования, а после приемников прямого и обратного направлений введены блоки множественного доступа, имеющие N выходов синхронизированных потоков сигналов, в том числе для других групп потребителей информации, и выполненные с возможностью синхронизированного умножения принятого сигнала

на каждый n-тый из N кодовых сигналов g_n(t) с выделением каждого n-того сигнала g_n ²(t)s_n(t), подаваемого на вход соответствующего демодулятора сигнала [Скляр Бернард. Цифровая связь. Теоретические основы и практическое применение. Изд. 2-е исп.: пер. с англ. - М.: Издательский дом «Вильямс», 2004. - 1104 с. (прототип с.32-36, 782, 783)]. Недостатком известных СППИ и прототипа по сравнению с заявляемой СППИ является исчерпание ими возможности дальнейшего повышения их технико-экономической эффективности.The closest analogue (prototype) of the present invention is a system for transmitting and receiving information in the forward and reverse directions from information sources to its consumers through digital communication, in which each l-th one in the forward direction, where

, from L _k information sources is connected, including, if necessary, through its block for formatting information into a digital stream and a compression block, for example, with time division of synchronized binary digital streams with L _k inputs and one output of the kth, where

, a digital stream from the nth group of information sources, where

to a high-frequency signal modulator equipped with a carrier frequency generator and connected to a forward-direction transmitter functionally connected through a transmission channel compatible with the transmitted high-frequency signal to at least one forward-direction receiver, which is connected through a high-frequency signal demodulator and, if necessary, through a decompression unit for a synchronized digital stream with one input and L _k outputs and its own unit for formatting the digital stream into information for the corresponding to the consumer of information, in this case, in the opposite direction, each of the information sources is connected, if necessary, through its own unit for formatting information into a digital stream and a compression unit, for example, with a time division of synchronized binary digital streams with L _n inputs and an output to a high-frequency signal modulator equipped with generator allocated to the source of information of the carrier frequency and connected to the transmitter of the reverse direction, functionally connected through a transmission channel compatible with the transmitted ysokochastotnym signal to the receiver the reverse direction, which is connected via the RF signal demodulator and including, if necessary, through the decompression unit synchronized digital stream with one input and L _k outputs and a block format of the digital stream in the stream of information to the appropriate information to the consumer, moreover, all of these blocks are functionally connected with the synchronization system, and if necessary, provide multiple access, for example, with code division in front of the transmitters Forward and reverse directions, modulated signal multipliers s _n (t) = A _n (t) cos [ω ₀ t + ψ _n (t)] by a code signal g _n (t) are introduced, and the code functions {g _n (t)} are approximately mutually orthogonal, and multiple access blocks having N inputs for accessing signal streams g _n (t) s _n (t), including other groups of information sources, and their summation, and after the receivers of forward and reverse directions, multiple access blocks are introduced having N outputs of synchronized signal streams, including for other groups of information consumers, and you olnennye synchronized with the possibility of multiplication of the received signal

for each n-th of N code signals g _n (t) with the allocation of each n-th signal g _n ² (t) s _n (t) supplied to the input of the corresponding signal demodulator [Sklyar Bernard. Digital communication. Theoretical foundations and practical application. Ed. 2nd Spanish: Per. from English - M.: Williams Publishing House, 2004. - 1104 p. (prototype p.32-36, 782, 783)]. A disadvantage of the known SPPI and prototype compared with the claimed SPPI is the exhaustion of the possibility of further improving their technical and economic efficiency.

The essence of the invention is aimed at increasing the technical and economic efficiency of SPPI by introducing in it in the forward direction in front of the modulator, including, in addition, a sealing unit configured to produce synchronized binary digital streams at the same time for reading binary digits K _n and convert them into a stream of M-ary characters, and, accordingly, the introduction of a decompression unit after the demodulator, which is capable of producing a transform simultaneously anija M-ary digital stream in K _n synchronized binary digital streams fed orderly manner as in said read, the outputs of the demultiplexing unit.

, из L_k источников информации из n-той группы источников информации, где

, подключен, в том числе, при необходимости, через свой блок форматирования информации в цифровой поток и блок уплотнения, например, с временным разделением синхронизированных бинарных цифровых потоков с L_k входами и одним выходом k-того, где

, цифрового потока к модулятору высокочастотного сигнала, снабженному генератором несущей частоты и соединенному с передатчиком прямого направления, функционально связанным через канал передачи, совместимый с передаваемым высокочастотным сигналом, по крайней мере с одним приемником прямого направления, который подключен через демодулятор высокочастотного сигнала и, при необходимости, через блок разуплотнения синхронизированного цифрового потока с одним входом и L_k выходами и свой блок форматирования цифрового потока в информацию к соответствующему потребителю информации, при этом в обратном направлении каждый из источников информации подключен, при необходимости, через свой блок форматирования информации в цифровой поток и блок уплотнения, например, с временным разделением синхронизированных бинарных цифровых потоков с L_k входами и выходом к модулятору высокочастотного сигнала, снабженному генератором выделенной источнику информации несущей частоты и соединенному с передатчиком обратного направления, функционально связанным через канал передачи, совместимый с передаваемым высокочастотным сигналом, с приемником обратного направления, который подключен через демодулятор высокочастотного сигнала и, в том числе, при необходимости, через блок разуплотнения синхронизированного цифрового потока с одним входом и L_k выходами и свой блок форматирования цифрового потока в поток информации к соответствующему потребителю информации, причем все указанные блоки функционально связаны с системой синхронизации, а при необходимости обеспечения множественного доступа, например, с кодовым разделением перед передатчиками прямого и обратного направлений введены умножители модулированного сигнала s_n(t)=A_n(t)cos[ω₀t+ψ_n(t)] на кодовый сигнал g_n(t), причем кодовые функции {g_n(t)} приблизительно взаимно ортогональны, и блоки множественного доступа, имеющие N входов для доступа потоков сигналов g_n(t)s_n(t), в том числе других групп источников информации, и их суммирования, а после приемников прямого и обратного направлений введены блоки множественного доступа, имеющие N выходов синхронизированных потоков сигналов, в том числе для других групп потребителей информации, и выполненные с возможностью синхронизированного умножения принятого сигнала

на каждый n-тый из кодовых сигналов g_n(t) с выделением каждого n-того сигнала g_n ²(t)s_n(t), подаваемого на вход соответствующего демодулятора сигнала, в соответствии с настоящим изобретением в системе передачи и приема информации в прямом направлении перед модулятором высокочастотного сигнала введен, в том числе, дополнительно, n-тый блок уплотнения k-тых синхронизированных цифровых потоков с K_n входами и одним выходом, выполненный с возможностью производства упорядоченного, например, последовательного от 1 до К_n, одновременного за такт считывания двоичных цифр К_n синхронизированных бинарных цифровых потоков и их преобразования в n-тый поток М_n-арных символов, где

, соответственно после демодулятора введен, в том числе, дополнительно, n-тый блок разуплотнения с одним входом и K_n выходами, выполненный с возможностью одновременного за такт преобразования n-того синхронизированного M_n-арного цифрового потока, поступающего с М_n-арного демодулятора, в К_n синхронизированных бинарных цифровых потоков, подаваемых упорядоченно, как при упомянутом считывании, к выходам введенного n-того блока разуплотнения.To achieve the specified technical result in the system of transmitting and receiving information in the forward and reverse directions from information sources to its consumers through digital communication, each l-th one, where

, from L _k information sources from the nth group of information sources, where

is connected, including, if necessary, through its unit for formatting information into a digital stream and a compression unit, for example, with a time division of synchronized binary digital streams with L _k inputs and one output of the kth, where

of a digital stream to a high-frequency signal modulator equipped with a carrier frequency generator and connected to a forward-direction transmitter functionally connected through a transmission channel compatible with the transmitted high-frequency signal to at least one forward-direction receiver that is connected through a high-frequency signal demodulator and, if necessary through the decompression unit of the synchronized digital stream with one input and L _k outputs and its own unit for formatting the digital stream into information corresponding to the information consumer, while in the opposite direction, each of the information sources connected, if required, via its information block format into a digital stream and block seals, for example, time division synchronized binary digital streams to L _k of inputs and outputs to the modulator frequency signal, equipped with a generator of a dedicated source of carrier frequency information and connected to a reverse transmitter, functionally connected through a transmission channel, compatible with a transmitted high-frequency signal, with a reverse direction receiver, which is connected through a high-frequency signal demodulator and, including, if necessary, through a decompression unit of a synchronized digital stream with one input and L _k outputs and its own unit for formatting the digital stream into the information stream to the corresponding the consumer of information, and all of these blocks are functionally connected with the synchronization system, and if necessary, provide multiple access, for example, with code division ne Power transmitters forward and backward directions administered multipliers modulated signal _{s n (t) = A n} (t) cos [ω ₀ t + ψ _n (t)] on the code signal g _n (t), and code function {g _n (t )} are approximately mutually orthogonal, and multiple access blocks having N inputs for accessing signal streams g _n (t) s _n (t), including other groups of information sources, and their summation, and after the receivers of forward and reverse directions, blocks are introduced multiple access, having N outputs of synchronized signal streams, including for other consumer groups information, and configured to multiply the synchronized received signal

for each nth of the code signals g _n (t) with the allocation of each n-th signal g _n ² (t) s _n (t) supplied to the input of the corresponding signal demodulator, in accordance with the present invention in an information transmission and reception system in the forward direction in front of the high-frequency signal modulator, including, in addition, the nth compaction unit of the k-th synchronized digital streams with K _n inputs and one output is introduced, configured to produce an ordered, for example, sequential from 1 to K _n , simultaneous per clock reading of binary digits of K _n synchronized binary digital streams and their conversion into the nth stream of M _n -ary characters, where

respectively, after the demodulator, an nth decompression unit with one input and K _n outputs is introduced, which is capable of simultaneously converting the n-th synchronized M _n -ary digital stream coming from the M _n -a demodulator per cycle , in K _n synchronized binary digital streams supplied in an orderly manner, as in said reading, to the outputs of the inputted nth decompression unit.

In addition, at least one additional transmission channel of at least information on the reference levels of M _n -ary signals is introduced into the forward and reverse directions in the passive interference detector.

In the current level of technology, no sources of information have been identified that would contain information about objects of the same purpose with the indicated set of distinctive features, which allows us to consider the SPPI of the present invention as new and having an inventive step.

SPSI of the present invention can be embodied in the device shown in figure 1 (prototype) and figure 2 (block diagram of the inventive SPSI).

In the drawings, the numbers in the digital streams of groups of information sources entering the multiple access blocks on the transmitting sides of the system and leaving the multiple access blocks on its receiving sides are enclosed in parentheses.

In the inventive SPPI, in comparison with generally known systems of the prior art, the systems in the sealing and decompression units use well-known decision schemes that allow using the appropriate software to provide an increase in the technical and economic efficiency of the known systems.

, из L_k источников информации из n-той группы источников информации, где

, подключен, в том числе, при необходимости, через свой блок форматирования 3 информации в цифровой поток и блок уплотнения 4, например, с временным разделением синхронизированных бинарных цифровых потоков с L_k входами 5 и одним выходом 6 k-того, где

, цифрового потока к модулятору высокочастотного сигнала 7, снабженному генератором несущей частоты 8 и соединенному с передатчиком прямого направления 9, функционально связанным через канал передачи 10, совместимый с передаваемым высокочастотным сигналом, по крайней мере с одним приемником прямого направления 11, который подключен через демодулятор высокочастотного сигнала 12 и, при необходимости, через блок разуплотнения 13 синхронизированного цифрового потока с одним входом 14 и L_k выходами 15 и свой блок форматирования 16 цифрового потока в информацию к соответствующему потребителю информации 2. При этом в обратном направлении каждый из источников информации 17 подключен, при необходимости, через свой блок форматирования 18 информации в цифровой поток и блок уплотнения 19, например, с временным разделением синхронизированных бинарных цифровых потоков с L_k входами 20 и выходом 21 к модулятору высокочастотного сигнала 22, снабженному генератором 23 выделенной источнику информации несущей частоты и соединенному с передатчиком обратного направления 24, функционально связанным через канал передачи 10, совместимый с передаваемым высокочастотным сигналом, с приемником обратного направления 25, который подключен через демодулятор высокочастотного сигнала 26 и, в том числе, при необходимости, через блок разуплотнения 27 синхронизированного цифрового потока с одним входом 28 и L_k выходами 29 и свой блок форматирования 30 цифрового потока в поток информации к соответствующему потребителю информации 31. Все указанные блоки функционально связаны с системой синхронизации 42. При необходимости обеспечения множественного доступа, например, с кодовым разделением перед передатчиками прямого 9 и обратного 24 направлений введены умножители 32 и 37 модулированного сигнала s_n(t)=A_n(t)cos[ω₀t+ψ_n(t)] на кодовый сигнал g_n(t), причем кодовые функции {g_n(t)} приблизительно взаимно ортогональны. Соответственно введены блоки множественного доступа 33 и 38, имеющие N входов 34 и 39 для доступа потоков сигналов g_n(t)s_n(t), в том числе других групп источников информации, и их суммирования. После приемников прямого 11 и обратного 25 направлений введены блоки множественного доступа 35 и 40, имеющие соответственно N выходов 36 и 41 синхронизированных потоков сигналов, в том числе для других групп потребителей информации, и выполненные с возможностью синхронизированного умножения принятого сигнала

на каждый n-тый из N кодовых сигналов g_n(t) с выделением каждого n-того сигнала g_n ²(t)s_n(t), подаваемого на вход соответствующего демодулятора сигнала 12 или 26.In the system of transmission and reception of information (Fig. 1) in the forward and reverse directions from information sources 1 (and, accordingly, 17) to its consumers 2 (and, respectively, 31) through digital communication, each l-th one, where

, from L _k information sources from the nth group of information sources, where

is connected, including, if necessary, through its information formatting unit 3 to a digital stream and compression unit 4, for example, with a time division of synchronized binary digital streams with L _k inputs 5 and one output 6 of the k where

, a digital stream to a high-frequency signal modulator 7, equipped with a carrier frequency generator 8 and connected to the forward direction transmitter 9, operatively connected through the transmission channel 10, compatible with the transmitted high-frequency signal, at least one forward direction receiver 11, which is connected through the high-frequency demodulator signal 12 and, if necessary, through the decompression unit 13 of the synchronized digital stream with one input 14 and L _k outputs 15 and its own formatting unit 16 of the digital stream to the information to the corresponding consumer of information 2. In this case, in the opposite direction, each of the information sources 17 is connected, if necessary, through its own information formatting unit 18 to a digital stream and compression unit 19, for example, with a time division of synchronized binary digital streams with L _k inputs 20 and output 21 to the high-frequency signal modulator 22, equipped with a generator 23 of a dedicated carrier frequency information source and connected to the reverse direction transmitter 24, functionally connected of transmission channel 10 is compatible with the transmitted high-frequency signal to the receiver the reverse direction 25, which is connected via a demodulator frequency signal 26, and including, if necessary, through a demultiplexer unit 27 synchronized digital stream to one input 28 and L _k outputs 29 and its own formatting unit 30 of the digital stream into the information stream to the corresponding information consumer 31. All of these blocks are functionally connected to the synchronization system 42. If necessary, provide multiple access, for example, with code division in front of the transmitters of the forward 9 and reverse 24 directions, multipliers 32 and 37 of the modulated signal s _n (t) = A _n (t) cos [ω ₀ t + ψ _n (t)] by the code signal g _n (t ), and code function {g _n (t)} approximately mutually orthogonal. Accordingly, multiple access units 33 and 38 are introduced, having N inputs 34 and 39 for accessing signal streams g _n (t) s _n (t), including other groups of information sources, and their summation. After receivers of direct 11 and reverse 25 directions, multiple access blocks 35 and 40 are introduced, having respectively N outputs 36 and 41 of synchronized signal streams, including for other groups of information consumers, and configured to synchronously multiply the received signal

for each n-th of N code signals g _n (t) with the allocation of each n-th signal g _n ² (t) s _n (t) supplied to the input of the corresponding signal demodulator 12 or 26.

. Соответственно после демодулятора 12 введен, в том числе, дополнительно, n-тый блок разуплотнения 46 с одним входом 47 и К_n выходами 48, выполненный с возможностью одновременного за такт преобразования n-того синхронизированного M_n-арного цифрового потока, поступающего с М_n-арного демодулятора 12, в K_n синхронизированных бинарных цифровых потоков, подаваемых упорядоченно, как при упомянутом считывании, к выходам 48 введенного n-того блока разуплотнения 46.In SPPI (figure 2) only in the forward direction in front of the modulator of the high-frequency signal 7 is introduced, including, in addition, the nth compaction unit 43 of the k-th synchronized digital streams with K _n inputs 44 and one output 45, made with the possibility of production ordered, for example, sequential from 1 to K _n , at the same time for reading the binary digits K _{n of} synchronized binary digital streams and converting them into the nth stream of M _n -ary symbols, where

. Accordingly, after the demodulator 12 is introduced, including, in addition, the nth decompression unit 46 with one input 47 and K _n outputs 48, configured to simultaneously convert the n-th synchronized M _n -ary digital stream coming from M _n -ar demodulator 12, in K _n synchronized binary digital streams supplied in orderly, as in the said reading, to the outputs 48 of the input n-th decompression unit 46.

, из L_k источников информации 1 из n-той группы источников информации, где

, подают, в том числе, при необходимости, через свой блок форматирования 3, в котором информацию форматируют в цифровой поток, к одному из L_k входов 5 блока уплотнения 4 синхронизированных бинарных цифровых потоков (этот блок уплотнения, например, с временным разделением может, при необходимости, присутствовать в действующей СППИ). Цифровой поток (k-тый, где

) с выхода 6 блока уплотнения 4 поступает на один из K_n входов 44 блока уплотнения 43. В нем упорядоченно, например последовательно от 1 до К_n, одновременно за такт считывают двоичные цифры K_n синхронизированных бинарных цифровых потоков, поступающих через K_n входы 44, и преобразуют их в n-тый поток М_n-арных символов. Этот поток цифровых символов подают с выхода 45 ко входу M_n-арного высокочастотного модулятора 7, снабженного генератором несущей частоты 8, и далее передают через передатчик 9 по крайней мере к одному приемнику 11 через канал передачи 10, совместимый с передаваемым высокочастотным сигналом. Принятый поток сигналов подают на вход n-того демодулятора высокочастотного сигнала 12. Синхронизированный цифровой поток с выхода демодулятора 12 подают на вход 47 по крайней мере одного n-того блока разуплотнения 46. В блоке разуплотнения одновременно за такт преобразуют n-тый поток цифровых символов в K_n синхронизированных бинарных цифровых потоков. Эти потоки подают с выходов 48 блока разуплотнения 46, в том числе, при необходимости (т.е. если указанные ниже блоки имеются в действующей СППИ), к одному входу 14 блока разуплотнения 13 синхронизированного цифрового потока, имеющего L_k выходов 15, и далее - к своим блокам форматирования 16. В блоках 16 l-тые цифровые потоки форматируют в информацию, которую направляют к соответствующим потребителям информации 2.The system (figure 2) works as follows. Forward information of each l -th where

, from L _k information sources 1 from the nth group of information sources, where

, fed, including, if necessary, through its formatting unit 3, in which the information is formatted into a digital stream, to one of the L _k inputs 5 of the compression unit 4 synchronized binary digital streams (this compression unit, for example, with time division can, if necessary, be present in the current SPIS). Digital stream (k-th, where

) from the output 6 of the seal unit 4, it is supplied to one of the K _n inputs 44 of the seal unit 43. In it, for example, sequentially from 1 to K _n , at the same time, binary digits K _{n of} synchronized binary digital streams through K _n inputs 44 are read per clock cycle , and convert them to the nth stream of M _n -ary characters. This digital symbol stream is fed from the output 45 to the input M _n -ary RF modulator 7, provided with a carrier frequency generator 8, and then transmitted via transmitter 9 to the at least one receiver 11 via transmission channel 10 that is compatible with the transmitted high frequency signal. The received signal stream is fed to the input of the nth demodulator of the high-frequency signal 12. The synchronized digital stream from the output of the demodulator 12 is fed to the input 47 of at least one nth decompression unit 46. In the decompression unit, the nth stream of digital symbols is simultaneously converted to a clock cycle K _n synchronized binary digital streams. These streams are supplied from the outputs 48 of the decompression unit 46, including, if necessary (i.e., if the following blocks are present in the current SISP), to one input 14 of the decompression unit 13 of a synchronized digital stream having L _k outputs 15, and further - to their formatting units 16. In blocks 16, the l-th digital streams are formatted into information that is sent to the respective consumers of information 2.

In the opposite direction, the information of each of the sources 17 is fed, if necessary, through its information formatter 18 to a digital stream to one of the L _k inputs 20 of the compaction unit 19 of the synchronized binary digital streams (this compaction unit, for example, with time division, may if necessary, be present in the current SPIS). The digital stream from the output 21 of the seal unit 19 is fed to the input of a high-frequency modulator 22 provided with a generator 23 of a dedicated carrier frequency information source, and then transmitted through a transmitter 24 to at least one receiver of the opposite direction 25 through a transmission channel 10 compatible with the transmitted high-frequency signal. The received signal stream is fed to the input of the nth demodulator of the high-frequency signal 26. The synchronized digital stream from the output of the demodulator 26 is supplied, including, if necessary (that is, if the blocks indicated below are present in the current SDIS), to one input 28 of the decompression unit 27 synchronized digital stream having L _k O 29, and further - to their formatting units 30. The units 30 l-received digital streams in the format information, which is sent to the appropriate information to consumers 31. in this sync produce Fu operation of all specified blocks.

на каждый n-тый из N кодовых сигналов g_n(t) с выделением каждого n-того сигнала g_n ²(t)s_n(t), который подают на вход соответствующих демодуляторов сигналов 12 и 26.When the need for multiple access, for example, code division before transmitters forward and backward directions 9 and 24 multiplying the modulated signal _{s n (t) = A n} (t) cos [ω ₀ t + ψ _n (t)] on the code signal g _n (t) in the multipliers 32 and 37 and summarize the synchronized signal flows g _n (t) s _n (t), including other groups of information sources in multiple access units 33 and 38, with N inputs 34 and 39 for access, including other groups of information sources. In this case, the code signals {g _n (t)} must be orthogonal. After the receivers of the forward and reverse directions 11 and 25, the synchronized signal streams are separated in the corresponding multiple access units 35 and 40, having N outputs 36 and 41, including for other groups of information consumers, and configured to synchronously multiply the received signal

for each n-th of N code signals g _n (t) with the allocation of each n-th signal g _n ² (t) s _n (t), which is fed to the input of the corresponding demodulators of signals 12 and 26.

In the drawing, the multiple access units, the known type of seal units and formatting units in the system are indicated by a dashed line, which means their use if necessary. If there is no need for multiple access, the signal from modulators 7 and 22 is fed to transmitters 9 and 24, and from receivers 11 and 25 to demodulators 12 and 26 via communication lines indicated by n.

To increase the reliability of the system, it is advisable to transmit information about the reference, for example, single, levels of M _n -ary signals. It can be transmitted, for example, after several clock cycles on the main channel. However, in some cases, it may be advisable to use an additional channel to transmit this and other information necessary for the organization of the system. Therefore, at least information about the reference levels of digital signals in the forward and reverse directions is transmitted through at least one additional transmission channel.

In the introduced, including, additionally, compaction unit, at each clock cycle (i.e., simultaneously), information from K _n sources is orderly read. Note that each information channel can carry information of any kind, for example, encoded by any code or a mixture of codes. The read information is converted to a stream of digital characters. In the decompression unit, at the same time, the digital symbol stream is restored (decompressed) into K _n synchronized binary digital streams and fed them in an orderly manner, as when reading in the compaction unit, to consumers in a form convenient for them. The remaining blocks of this AIS can be performed the same as in the closest analogue or in other systems of the same purpose.

The timing and synchronization issues of the transmitting and receiving sides of the system used are solved by any means well known in the art, for example, in the same way as in the prototype. In some cases, it is sufficient to use one decompression unit, from each output of which information is sent to the corresponding consumer of information. In some cases, two or more, up to K _n , decompression blocks can be used. For example, in cellular communications, each mobile station includes a decompression unit. From the stream of digital symbols coming into this block, a binary digital stream is allocated that is currently addressed only to this consumer. Thus, in cellular communications, the signal flow is delivered to all consumers, and the decompression procedure is performed by each final destination.

Effective computational algorithms, including well-known ones, are used for compaction and decompression (restoration of initial information), which facilitates their hardware-software implementation.

In this technical solution, when transmitting information from multiple sources in the forward direction, one frequency is used, and when transmitting information in the opposite direction, each source uses, as in the prototype, the frequency allocated to it. As applied, for example, to cellular communications, this technical solution allows to reduce the number of frequencies necessary for the operation of base station (BS) transmitters of cellular communications and to free a significant part of the frequencies of BS transmitters, including in the frequency band used in GSM-900 communication systems . This is important for practice, as BS transmitters use the frequency band in which the aircraft’s avionics of the short-range radio navigation and landing system operate and create unintentional radio interference to them. Therefore, a decrease in the number of operating frequencies of BS transmitters covering the territory of the country can significantly simplify the solution of the problem of ensuring electromagnetic compatibility, for example, short-range radio navigation systems and networks of GSM-900 standard [Prikhodko V.V., Panov V.P., Kalugin V.G. Scientific and technical aspects of conducting flight research to provide EMC systems for short-range radio navigation and GSM-900 networks. Telecommunications, No. 1, 2005].

Below is a table illustrating the transmission and reception of three streams of text information in the inventive system:

) (Попов •

) (Сименс •).The table in columns 1, 3, 5 shows the streams of textual information of three sources: (Hertz •

) (Popov •

) (Siemens •).

- пробел, ⇒ - знак упорядоченного потактового считывания двоичных цифр бинарных цифровых потоков и их преобразования в поток М_n-арных символов и его обратного преобразования в бинарные цифровые потоки.Columns 2, 4, 6 show the corresponding binary digital streams. Column 7 shows the stream of M _n -ary symbols transmitted from the bottom up received in the block 43 by ordering, sequentially from the first to the third stream, at the same time for reading the binary digits of binary digital streams and converting them into the specified stream of characters. Columns 8, 10, 12 show the results of the simultaneous conversion of a stream of M _n -ar symbols into three binary digital streams in a decompression unit 46 into three binary digital streams, which are supplied in an orderly manner, as in the aforementioned reading, to the outputs of the decompression unit and then distributed to the corresponding consumers of information. Columns 9, 11, 13 show the streams of text information received by the recipients. The table indicates: • - point,

- space, ⇒ - sign of ordered tick-by-word reading of binary digits of binary digital streams and their conversion to a stream of M _n -ary symbols and its inverse conversion to binary digital streams.

This simplest possible example of the use of the claimed SPSI clearly shows the possibility of simultaneous transmission and reception of three streams of text information on one channel, which increases the efficiency of using the frequency resource. In addition, the invention improves the structural and informational secrecy of the transmitted digital signal in addition to the coding laws used. The present invention is useful in that it can be applied in practice for the development and improvement of any digital communication system with any organization of its work, for example, already using well-known multiple access methods (with frequency, time, code, spatial and polarization separation) and known methods signal processing, including, for example, for all known cellular standards.

Industrial applicability. The present invention can be applied in SPSI using high-frequency signals in any communication system. SPPI according to this invention allows you to effectively use the frequency resource and can work simultaneously with a large number of heterogeneous information.

The analysis made it possible to establish: analogues with a set of features identical to all the features of the claimed technical solution are absent, which indicates the conformity of the claimed system to the “novelty” condition.

The search results for well-known solutions in the field of API for the purpose of identifying features that match the distinctive features of the claimed system from the prototype have shown that they do not follow explicitly from the prior art. Therefore, the claimed invention meets the condition of patentability "inventive step".

Claims (2)

1. A system for transmitting and receiving information in the forward and reverse directions from information sources to its consumers through digital communication, in which each l-th one in the forward direction, where

, from L _k information sources is connected, including, if necessary, through its block for formatting information into a digital stream and a compression block, for example, with time division, of synchronized binary digital streams with L _k inputs and one output of the kth, where

, a digital stream belonging to the nth group of information sources, where

to a high-frequency signal modulator equipped with a carrier frequency generator and connected to a forward-direction transmitter functionally connected through a transmission channel compatible with the transmitted high-frequency signal to at least one forward-direction receiver, which is connected through a high-frequency signal demodulator and, if necessary, through a unit decompression of a synchronized digital stream with one input and L _k outputs and its own unit for formatting the digital stream into information for the corresponding to the consumer of information, in this case, in the opposite direction, each of the information sources is connected, if necessary, through its own unit for formatting information into a digital stream and a compression unit, for example, with time division, of synchronized binary digital streams with L _k inputs and one output to a high-frequency signal modulator equipped with a generator allocated to the carrier frequency information source and connected to a reverse direction transmitter operably connected through a transmission channel compatible with the transmitter by direct high-frequency signal to the receiver the reverse direction, which is connected via the RF signal demodulator and including, if necessary, through the block decompressor synchronized digital stream to the input and L _k outputs and a block format of the digital stream in the stream of information to the appropriate information to the consumer, wherein all of these blocks are functionally connected with the synchronization system, and if necessary, provide multiple access, for example, with code division, in front of the transmitters forward and reverse directions included multipliers modulated signal _{s n (t) = A n} (t) cos [ω ₀ t + Ψ _n (t)] on the code signal g _n (t), and code function {g _n (t)} are mutually orthogonal or possibly closer to them, and multiple access units having N inputs for accessing signal flows g _n (t) s _n (t), including other groups of information sources, and their summation, and after direct and reverse receivers directions included multiple access blocks having N outputs of synchronized signal streams, including for other consumer groups th information, and configured to synchronously multiply the received signal

for each n-th of N code signals g _n (t) with the allocation of each n-th signal g _n ² (t) s _n (t) supplied to the input of the corresponding signal demodulator, characterized in that in the information transmission and reception system in the forward direction in front of the high-frequency signal modulator, including, in addition, the nth compaction unit of k-synchronized digital streams with K _n , inputs and one output is introduced, configured to produce an ordered, for example, sequential from 1 to K _n , simultaneous per clock reading binary digits K _n sync onized binary digital streams and their conversion into the nth stream of M _n -ary symbols, where

respectively, after the demodulator, the nth decompression unit with one input and K _n outputs is introduced, which is capable of simultaneously converting the nth synchronized M _n- ary digital stream coming from the M _n -a demodulator at the same time, in K _n synchronized binary digital streams supplied in an orderly manner, as in the aforementioned reading, to the outputs of the introduced nth decompression unit. 2. The system according to claim 1, characterized in that at least one additional transmission channel of at least information about the reference levels of M _n -ary signals is introduced in it in the forward and reverse directions.

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