WO2017008282A1

WO2017008282A1 - Cs local sequence generation method and device, transmitter and receiver

Info

Publication number: WO2017008282A1
Application number: PCT/CN2015/084134
Authority: WO
Inventors: 陈静涛; 谷卫东; 帅松林
Original assignee: 华为技术有限公司
Priority date: 2015-07-15
Filing date: 2015-07-15
Publication date: 2017-01-19
Also published as: CN107850997B; CN107850997A

Abstract

Disclosed is a CS local sequence generation method. The method comprises: determining an initial value of a CS local sequence, wherein the initial value of the CS local sequence comprises N parameter sets, one of the parameter sets comprises a frequency, and the amplitude and phase of the CS local sequence at the frequency, and N is an integer greater than 1; performing digital processing on the N parameter sets to obtain N parameter control codes; using the N parameter control codes to generate a CS local sequence, wherein the CS local sequence is formed by overlapping N single-tone local signals, and one single-tone local signal corresponds to one parameter control code. The CS local sequence generation method disclosed in the present application simplifies the process of adjusting a CS local sequence and also makes the operation of adjusting a CS local sequence more flexible. Also disclosed are a CS local sequence generation device, a transmitter and a receiver.

Description

CS local oscillator sequence generation method, device, transmitter and receiver

Technical field

The present application relates to the field of mobile communications technologies, and in particular, to a CS local oscillator sequence generating method, apparatus, transmitter, and receiver.

Background technique

Compressed sensing (CS) is a theory of signal acquisition and codec that utilizes signal sparsity or compressibility. The theory shows that when the signal is sparse or compressible, the signal reconstruction can be achieved by acquiring a small amount of signal projection value under the condition of much smaller than Nyquist sampling rate. At present, compressed sensing technology has been applied to the field of communications.

In the communication system based on the compressed sensing technology, the transmitter uses the CS local oscillator sequence to perform spectrum compression on the original signal, and the receiver uses the CS local oscillator sequence to perform signal recovery. The spectrum, amplitude and phase relationship of the CS local oscillator sequence in the frequency domain determine whether the receiver can effectively recover the information content carried by the sparse signal.

At present, the CS local oscillator sequence is mainly generated by first determining the frequency of the carrier carrying the signal, constructing the corresponding 0/1 periodic sequence by using the CS algorithm, and then inputting the 0/1 periodic sequence to the FPGA (field programmable gate array). Or in the shift register, the clock pulse is controlled by the 0/1 cycle sequence to obtain a CS local oscillator sequence.

However, the current method of generating the CS local oscillator sequence has drawbacks: the CS local oscillator sequence is obtained by using a pre-built 0/1 periodic sequence control clock pulse. When it is necessary to adjust the amplitude and phase of the CS local oscillator sequence at a certain frequency. The new 0/1 cycle sequence must be reconstructed according to the current requirements, and the workload of constructing the 0/1 cycle sequence is large, which leads to a complicated process of adjusting the CS local oscillator sequence.

Summary of the invention

In view of this, the present application provides a CS local oscillator sequence generation method, apparatus, transmitter, and receiver to solve the problem that the process of adjusting the CS local oscillator sequence in the prior art is complicated.

In order to achieve the above objectives, the technical solutions provided by the embodiments of the present application are as follows:

According to a first aspect of the embodiments of the present application, a method for generating a CS local oscillator sequence includes:

Determining an initial value of the CS local oscillator sequence, the initial value of the CS local oscillator sequence comprising N parameter sets, wherein one of the parameter sets includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency, and N is greater than 1. Integer

Digitizing the N parameter sets to obtain N parameter control codes;

The CS local oscillator sequence is generated by using N parameter control codes, wherein the CS local oscillator sequence is superposed by N monophonic local oscillator signals, and a single local oscillator signal corresponds to a parameter control code.

With reference to the first aspect, in a first possible implementation, digitizing a parameter set includes: calculating a ratio of frequency and frequency quantization precision of the parameter set and converting to obtain a corresponding first binary number; The ratio of the amplitude and the amplitude quantization precision of the parameter set is converted and the corresponding second binary number is obtained; the ratio of the phase and phase quantization precision in the parameter set is calculated and converted to obtain a corresponding third binary number; The hexadecimal number, the second binary number, and the third binary number are connected in a preset order to constitute a parameter control code.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation, the method further includes: detecting an amplitude of a carrier signal in the N target channels, where the N target channels are: The N channels corresponding to the N frequencies in the initial values of the CS local oscillator sequence; determining the amplitude compensation value of the CS local oscillator sequence at the N frequencies by using the detected amplitudes of the carrier signals in the N target channels; The amplitude compensation value of the vibration sequence at the N frequencies is corrected for the amplitude of the reference CS local oscillator sequence at the corresponding frequency, and the corrected parameter set is obtained; respectively, the N modified parameter sets are digitized to obtain N parameter control Code; generating a CS local oscillator sequence by using the recently generated N parameter control codes.

In conjunction with the second possible implementation of the first aspect, in a third possible implementation, determining an amplitude compensation value of the CS local oscillator sequence at a frequency includes: calculating a difference between the first amplitude and the second amplitude Determining, the difference is an amplitude compensation value of the CS local oscillator sequence at the frequency; wherein the first amplitude is an amplitude of the reference CS local oscillator sequence at the frequency, and the second amplitude is corresponding to the frequency The amplitude of the carrier signal in the target channel.

In conjunction with the third possible implementation of the first aspect, in a fourth possible implementation, the reference CS local oscillator sequence is a CS local oscillator sequence generated by using an initial value of a CS local oscillator sequence, or is generated last time. The CS local oscillator sequence.

With reference to the first aspect to the fourth possible implementation manner of the first aspect, in a fifth possible implementation, the generating the CS local oscillator sequence by using the N parameter control codes includes: generating the N parameter control codes in a parallel manner Corresponding single-tone local oscillator signal; superimposing the generated N single-tone local oscillator signals to obtain a CS local oscillator sequence.

With reference to the first aspect to the fourth possible implementation manner of the first aspect, in a sixth possible implementation manner, the CS local oscillator sequence is generated by using the N parameter control codes, including: generating in a serial form and controlling the N parameters The single-tone local oscillator signal corresponding to the code; superimposing the generated N single-tone local oscillator signals to obtain a CS local oscillator sequence.

According to a second aspect of the embodiments of the present application, a CS local oscillator sequence generating apparatus is provided, including a controller and a signal generating apparatus;

The controller determines an initial value of the CS local oscillator sequence, the initial value of the local oscillator sequence includes N parameter sets, wherein one of the parameter sets includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency, and N is An integer greater than 1, respectively digitizing the N parameter sets to obtain N parameter control codes;

The signal generating device generates a CS local oscillator sequence by using N parameter control codes output by the controller, wherein the CS local oscillator sequence is superposed by N single local oscillator signals, a single local oscillator signal and a parameter. The control code corresponds.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the controller digitizes a parameter set, including: the controller calculates a frequency of the parameter set and The ratio of the frequency quantization precision is converted and the corresponding first binary number is obtained, the ratio of the amplitude and the amplitude quantization precision of the parameter set is calculated, and the corresponding second binary number is converted, and the phase and phase quantization precision of the parameter set is calculated. The ratio is converted and the corresponding third binary number is obtained, and the first binary number, the second binary number and the third binary number are connected in a preset order to form a parameter control code.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation, the controller is further configured to: detect a magnitude of a carrier signal in the N target channels, and use the detected The amplitude of the carrier signal in the N target channels determines the amplitude compensation value of the CS local oscillator sequence at N frequencies, and the amplitude of the amplitude compensation value of the CS local oscillation sequence at the N frequencies to the reference CS local oscillator sequence at the corresponding frequency Performing a correction to obtain a modified parameter set, respectively digitizing the N modified parameter sets to obtain N parameter control codes, and transmitting the processed N parameter control codes to the signal generating device; wherein The N target channels are: N channels corresponding to N frequencies in the initial values of the CS local oscillator sequence.

With reference to the second possible implementation of the second aspect, in a third possible implementation, the controller determines an amplitude compensation value of the CS local oscillator sequence at one frequency, including: the controller calculates the first a difference between the amplitude and the second amplitude, determining that the difference is an amplitude compensation value of the CS local oscillator sequence at the frequency; wherein the first amplitude is an amplitude of the reference CS local oscillator sequence at the frequency, The second amplitude is the amplitude of the carrier signal in the target channel corresponding to the frequency.

With reference to the second aspect to the third possible implementation manner of the second aspect, in a fourth possible implementation, the signal generating apparatus includes a frequency synthesizer and a plurality of signal generators disposed in parallel; the controller The N parameter control codes are output to the plurality of signal generators in parallel; the plurality of signal generators generate a single-tone local oscillator signal corresponding to the parameter control code received therefrom; the frequency synthesizer pairs the plurality The single-tone local oscillator signals generated by the signal generators are superimposed to obtain a CS local oscillator sequence.

With reference to the second aspect, the third possible implementation manner of the second aspect, in a fifth possible implementation, the signal generator includes a multi-tone signal generator; and the controller uses the N parameter control codes And sequentially outputting to the multi-tone signal generator; the multi-tone signal generator is sequentially generated The single-tone local oscillator signal corresponding to the received parameter control code is superimposed on the generated single-tone local oscillator signal to obtain a CS local oscillator sequence.

In conjunction with the third aspect of the embodiments of the present application, a transmitter is provided, where the transmitter includes a controller and a signal generating device; the controller determines an initial value of a CS local oscillator sequence, and the initial value of the local oscillator sequence includes N a parameter set, wherein one parameter set includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency, and N is an integer greater than 1, respectively, digitizing the N parameter sets to obtain N parameter control codes The signal generating device generates a CS local oscillator sequence by using N parameter control codes output by the controller, wherein the CS local oscillator sequence is superposed by N single-tone local oscillator signals, and a single-tone local oscillator signal and a The parameter control code corresponds.

With reference to the fourth aspect of the embodiments of the present application, a receiver is provided, the receiver includes a controller and a signal generating device; the controller determines an initial value of a CS local oscillator sequence, and the initial value of the local oscillator sequence includes N a parameter set, wherein one parameter set includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency, and N is an integer greater than 1, respectively, digitizing the N parameter sets to obtain N parameter control codes The signal generating device generates a CS local oscillator sequence by using N parameter control codes output by the controller, wherein the CS local oscillator sequence is superposed by N single-tone local oscillator signals, and a single-tone local oscillator signal and a The parameter control code corresponds.

With reference to the fourth aspect, in a first possible implementation, the controller is further configured to: detect an amplitude of a carrier signal in the N target channels, and determine a CS by using amplitudes of the carrier signals in the detected N target channels. The amplitude compensation value of the vibration sequence at N frequencies is corrected by the amplitude compensation value of the CS local oscillation sequence at the N frequencies to the amplitude of the reference CS local oscillation sequence at the corresponding frequency, and the corrected parameter set is obtained, respectively The N modified parameter sets are digitized to obtain N parameter control codes, and the N parameter control codes obtained by the processing are transmitted to the signal generating device; wherein the N target channels are: the CS local oscillator sequence N channels corresponding to N frequencies in the initial value.

The CS local oscillator sequence generation method disclosed in the present application determines the initial value of the CS local oscillator sequence, digitizes the N parameter sets in the initial value of the CS local oscillator sequence to obtain N parameter control codes, and the parameter control code is required by the communication device. Frequency of the CS local oscillator sequence in the frequency domain, and the frequency The amplitude and phase are determined. N single-tone local oscillator signals are generated by using N parameter control codes, and N single-tone local oscillator signals are superimposed to obtain a CS local oscillator sequence. In the process of generating the CS local oscillator sequence, each parameter control code is independent, and the process of using the single-tone local oscillator signal generated by the parameter control code is also independent, by adjusting the frequency of the parameter set and the CS local oscillator sequence. At the amplitude and phase at this frequency, a new parameter control code can be generated, and a new single-tone local oscillator signal is generated accordingly, and the amplitude and phase adjustment of the CS local oscillator sequence at a certain frequency is completed, which simplifies the adjustment of CS. The process of the local oscillator sequence also makes the operation of adjusting the CS local oscillator sequence more flexible. In addition, the receiver can recover the signal by using the CS local oscillator sequence generated by the method disclosed in the present application, which can reduce the white noise of the receiver and improve the signal to noise ratio of the demodulation.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only It is an embodiment of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without any creative work.

FIG. 1 is a flowchart of a method for generating a CS local oscillator sequence according to an embodiment of the present application;

2 is a flowchart of another method for generating a CS local oscillator sequence according to an embodiment of the present application;

3 is a schematic structural diagram of a CS local oscillator sequence generating apparatus according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of another CS local oscillator sequence generating apparatus according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of another CS local oscillator sequence generating apparatus according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application. Rather than all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

The present application discloses a CS local oscillator sequence generation method to simplify the process of adjusting the CS local oscillator sequence.

In a communication system based on compressed sensing technology, the process of spectrum compression of the original signal (for example, a sparse signal) by the transmitter is equivalent to the process of calculating the product of Z and C. The process of recovering the signal by the receiver is equivalent to solving the equation. The process of Y=C*Z.

Where: Z represents the free-space original spectrum before aliasing, containing the original signal, and Z can be assumed to be a column vector of m*1. Y represents the spectrum of the signal obtained by the receiver for compressed sensing sampling (sampling frequency is lower than the Nyquist sampling frequency), and there is a phenomenon that different carrier signals are aliased. Y can be assumed to be a column vector of n*1, usually m>>n. C is a complex coefficient matrix of m*n, and each term in the matrix can be expressed as a form of c _n = a _n *exp(j*θ _n ), where a _n is the amplitude, θ _n is the phase, and the complex coefficient The characteristics of the matrix are determined by the amplitude and phase relationship of the CS local oscillator sequence.

In the process of recovering the signal from the receiver, whether the solution of the equation Y=C*Z is unique and valid is determined by the characteristics of the complex coefficient matrix C, and the characteristic of the complex coefficient matrix C is the amplitude and phase of the CS local oscillator sequence. Relationship to decide. Therefore, the spectrum, amplitude and phase of the CS local oscillator sequence in the frequency domain determine whether the receiver can effectively recover the information content carried by the sparse signal.

Referring to FIG. 1, FIG. 1 is a flowchart of a method for generating a CS local oscillator sequence according to an embodiment of the present application. The method includes:

Step S1: Determine an initial value of the CS local oscillator sequence. The initial value of the CS local oscillator sequence includes N parameter sets, N is an integer greater than 1, and one parameter set includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency.

In order to solve the multi-equal equations Y=C*Z, the process of recovering the signal from the receiver requires the condition that the complex coefficient matrix C satisfies the full rank of the column vector. In order to improve the stability of the solution of the equations, it is necessary to make the complex coefficient matrix C. The correlation between the column vectors is small, the condition number of the complex coefficient matrix C is small, and the condition number of the matrix is equal to the product of the norm of the matrix and the inverse norm of the matrix, conditions The number is a measure of whether the matrix is ill-conditioned or not. The larger the number of conditions, the more morbid the matrix is. The initial values obtained by optimizing the complex coefficient matrix C are used to determine a plurality of frequencies included in the frequency domain of the CS local oscillator sequence, and the amplitude and phase of the CS local oscillator sequence at respective frequencies. That is to say, the complex coefficient matrix C is optimized to obtain an initial value, which includes the frequency that the CS local oscillator sequence needs to include, and the amplitude and phase at each frequency.

In the implementation, the complex coefficient matrix C can be optimized by using a genetic search algorithm to determine the frequency of the CS local oscillator sequence in the frequency domain and the amplitude and phase of the CS local oscillator sequence at each frequency.

For example, the carrier signal to be recovered is at 1.88 GHz, 2.32 GHz, and 2.6 GHz, and the signal bandwidth is 20 MHz. In order to recover the original signal, the CS local oscillator sequence used by the receiver in recovering the signal includes 1.84 GHz and 1.88 in the frequency domain. There are five frequency points in GHz, 2.32 GHz, 2.6 GHz, and 2.64 GHz, and the CS local oscillator sequence has a specific amplitude and phase at each frequency.

Step S2: Digitizing the N parameter sets to obtain N parameter control codes.

A parameter set is digitized to obtain a parameter control code, and N parameter sets are digitized to obtain N parameter control codes. In the implementation, the parameter set can be digitized in various ways to obtain a corresponding parameter control code.

For example, digitizing a parameter set includes: calculating a ratio of frequency and frequency quantization precision of the parameter set and converting to obtain a corresponding first binary number; calculating a ratio of amplitude and amplitude quantization precision of the parameter set and converting the corresponding value a second binary number; calculating a ratio of phase and phase quantization precision in the parameter set and converting to obtain a corresponding third binary number; the first binary number, the second binary number, and the third binary The numbers are connected in a preset order to form a parameter control code.

Combined with an example, the maximum frequency of the signal is 2.7 GHz, the preset frequency quantization precision is 1 MHz, and the maximum value of the frequency of the signal is divided by the preset frequency quantization precision, and the number of states that need to be represented in the digitization process is 2700, 2 ¹² = 4096 > 2700, so it can be represented by a 12-bit binary number. The maximum amplitude of the signal is 2, the preset amplitude quantization precision is 0.001, and the number of states to be represented in the digitization process is 2000, 2 ¹¹ = 2048 > 2000, so it can be represented by an 11-bit binary number. The phase of the signal is represented by an angle ranging from 0° to 360°. When the preset phase quantization accuracy is 1°, the number of states to be represented in the digitization process is 360, 2 ⁹ = 512>360, so 9 Bit binary number to represent.

As another implementation manner, a mapping relationship between a frequency and a binary number, a mapping relationship between an amplitude and a binary number, and a mapping relationship between a phase and a binary number may be pre-stored in the communication device, in the process of digitizing a parameter set. Determining a first binary number corresponding to the frequency of the parameter set by searching a pre-stored mapping relationship between the frequency and the binary number, and determining a second binary number corresponding to the amplitude of the parameter set by searching a mapping relationship between the pre-stored amplitude and the binary number Determining a third binary number corresponding to the phase in the parameter set by finding a mapping relationship between the phase and the binary number, and connecting the first binary number, the second binary number, and the third binary number according to a preset order Form the parameter control code.

In an implementation, the first binary number, the second binary number, and the third binary number may be connected in a preset order according to actual needs to form a parameter control code. For example, the first binary number, the second binary number, and the third binary number may be sequentially connected to form a parameter control code, or the first binary number, the third binary number, and the second may be The binary numbers are sequentially connected to form a parameter control code.

In addition, in the implementation, the first binary number, the second binary number, and the third binary number may be arranged in a specific order according to actual needs, and a specific binary is added between adjacent two binary numbers. Sequences (such as 00, 111) are connected to form a parameter control code.

Step S3: Generate a CS local oscillator sequence by using N parameter control codes. The CS local oscillator sequence is superposed by N single-tone local oscillator signals, and a single-tone local oscillator signal corresponds to a parameter control code.

N single tone local oscillator signals are generated by using N parameter control codes, that is, a single tone local oscillator signal is generated by using one parameter control code. The frequency of the single-tone local oscillator signal is consistent with the frequency of the parameter set corresponding to the parameter control code for generating the single-tone local oscillator signal, and the amplitude of the single-tone local oscillator signal corresponds to the parameter control code for generating the single-tone local oscillator signal. The amplitudes in the parameter set are the same, and the phase of the single-tone local oscillator signal is consistent with the phase of the parameter set corresponding to the parameter control code that generates the single-tone local oscillator signal.

The N monophonic local oscillator signals are superimposed, and the obtained signal is the CS local oscillator sequence. The CS local oscillator sequence includes each frequency in the initial value of the CS local oscillator sequence in the frequency domain, and the amplitude at each frequency And the phase coincides with the amplitude and phase at each frequency in the initial value of the CS local oscillator sequence.

The CS local oscillator sequence generation method disclosed in the above application is applied to any signal transceiving device, such as a transmitter and a receiver, which needs to use a CS local oscillation sequence. It can be applied to both the transmitter and the receiver to ensure the consistency of the CS local oscillator sequence at both ends of the transceiver, so that the receiver can recover the information content carried by the original signal.

It should be noted that each single-tone local oscillator signal is a sine wave. The CS local oscillator sequence in this application is a superposition of multiple single-tone local oscillator signals, and the waveform in the time domain is multiple frequencies. Different sinusoidal waves are superimposed, which is different from the CS local oscillator sequence in the form of a square wave in the prior art.

In addition, in the process of recovering the signal by the CS local oscillator sequence generated by the method disclosed in the present application, the white noise of the receiver can be reduced, and the signal-to-noise ratio of the demodulation can be improved. The following still describes the carrier signals that need to be recovered at 1.88 GHz, 2.32 GHz, and 2.6 GHz, and the signal bandwidth is 20 MHz.

The spectral components of the square wave signal can be expressed as the following number of levels:

In theory, the spectral components are distributed in the entire frequency domain of (-∞, ∞). Due to the bandwidth limitation of the RF channel of the receiver, the range of true spectral components is (-n ≤ i ≤ n), that is,

Assuming that the bandwidth of the receiver is 3 GHz and the bandwidth of the sub-band f _p = 40 M, the bandwidth of the receiver is divided into n sub-bands, wherein

Then, the spectral components of the CS local oscillator sequence generated by the present application can be expressed as:

Where i = ±46, ±57, ±64.

The CS local oscillator sequence (referred to as the first CS local oscillator sequence) for generating a square wave signal generated in the prior art is subjected to down-conversion processing by the receiver, and the noise folded into the sampling bandwidth of the ADC is expressed as follows:

The CS local oscillator sequence generated in the present application (referred to as the second CS local oscillator sequence for convenience of description) is down-converted by the receiver, and the noise folded into the sampling bandwidth of the ADC is expressed as follows:

When the signal is normally received, the amplitude of each spectral component of the second CS local oscillator sequence is not much different from the amplitude of each spectral component of the first CS local oscillator sequence.

Therefore, you can be sure

That is, the first CS local oscillator sequence will cause higher white noise and deteriorate the demodulation signal to noise ratio.

The CS local oscillator sequence generation method disclosed in the present application determines the initial value of the CS local oscillator sequence, digitizes the N parameter sets in the initial value of the CS local oscillator sequence to obtain N parameter control codes, and the parameter control code is required by the communication device. The frequency of the CS local oscillator sequence in the frequency domain and the amplitude and phase at the frequency are determined. N single tone local oscillator signals are generated by using N parameter control codes, and N single tone local oscillator signals are superimposed to obtain a CS book. Vibration sequence. In the process of generating the CS local oscillator sequence, each parameter control code is independent, and the process of using the single-tone local oscillator signal generated by the parameter control code is also independent, by adjusting the frequency of the parameter set and the CS local oscillator sequence. At the amplitude and phase at this frequency, a new parameter control code can be generated, and a new single-tone local oscillator signal is generated accordingly, and the amplitude and phase adjustment of the CS local oscillator sequence at a certain frequency is completed, which simplifies the adjustment of CS. The process of the local oscillator sequence also makes the operation of adjusting the CS local oscillator sequence more flexible. In addition, the receiver can recover the signal by using the CS local oscillator sequence generated by the method disclosed in the present application, which can reduce the white noise of the receiver and improve the signal to noise ratio of the demodulation.

The signal is transmitted to the receiver through the channel, different carrier signals are in different letters In-channel transmission, the effect of the channel on the amplitude of the carrier signal transmitted therein is different, which results in a certain amplitude difference between the signal received by the receiver and the signal transmitted by the transmitter. If the receiver still uses the CS local oscillator sequence that is identical to the transmitter during the recovery of the signal, it will affect the accuracy of the signal recovery.

Further, when the CS local oscillator sequence generation method disclosed in the present application is applied to a receiver, the improvement may be performed on the basis of the flow shown in FIG. 1 , so that the CS local oscillator sequence generation method disclosed in the present application can be based on a channel pair signal. The effect of adjusting the parameter control code in real time ensures that the receiver can accurately recover the original signal.

Referring to FIG. 2, FIG. 2 is a flowchart of another CS local oscillator sequence generation method according to an embodiment of the present application. The method includes:

Step S2: Digitizing the N parameter sets to obtain N parameter control codes.

Step S3: Generate a CS local oscillator sequence by using N parameter control codes. The CS local oscillator sequence is superimposed by N single-tone local oscillator signals, and a single-tone local oscillator signal corresponds to a parameter control code.

Step S4: Detect the amplitude of the carrier signal in the N target channels.

The N target channels are: N channels corresponding to N frequencies in the initial value of the CS local oscillator sequence. The initial value of the CS local oscillator sequence determined in step S1 includes N frequencies, and the N channels corresponding to the N frequencies are the target channels for channel detection.

For example, the carrier signals to be recovered are at 1.88 GHz, 2.32 GHz, and 2.6 GHz, and the signal bandwidth is 20 MHz. The initial values of the CS local oscillator sequence include five frequencies of 1.84 GHz, 1.88 GHz, 2.32 GHz, 2.6 GHz, and 2.64 GHz. Then, in step S4, the amplitudes of the carrier signals in the five target channels are detected, and the center frequencies of the five target channels are 1.84 GHz, 1.88 GHz, 2.32 GHz, 2.6 GHz, and 2.64 GHz, respectively.

In the implementation, the amplitude of the carrier signal in the N target channels is detected according to a preset time interval, and the time interval may be a fixed value or a value that changes according to a preset rule.

Step S5: determining the amplitude compensation value of the CS local oscillation sequence at N frequencies by using the detected amplitudes of the carrier signals in the N target channels.

In the implementation, determining the amplitude compensation value of the CS local oscillator sequence at one frequency may be performed by calculating a difference between the first amplitude and the second amplitude, and determining the difference is the amplitude compensation of the CS local oscillator sequence at the frequency. value. The first amplitude is the amplitude of the reference CS local oscillator sequence at the frequency, and the second amplitude is the amplitude of the carrier signal in the target channel corresponding to the frequency. Of course, after calculating the difference between the first amplitude and the second amplitude, the adjustment may be performed based on the difference, and the adjusted result is used as the amplitude compensation value of the CS local oscillation sequence at the frequency.

In the implementation, the reference CS local oscillator sequence may be a CS local oscillator sequence generated by using the initial value of the CS local oscillator sequence, or may be the CS local oscillator sequence generated last time. It should be noted that the CS local oscillator sequence generated last time may generate the CS local oscillator sequence by using the initial value of the CS local oscillator sequence.

Step S6: Correcting the amplitude of the reference CS local oscillator sequence at the corresponding frequency by using the amplitude compensation value of the CS local oscillation sequence at the N frequencies to obtain a corrected parameter set.

Step S7: digitizing the N corrected parameter sets to obtain N parameter control codes.

The process of digitizing the corrected parameter set is consistent with the foregoing process of digitizing the parameter set. As an implementation manner, the process of digitizing a modified parameter set includes: calculating a ratio of the corrected parameter set frequency and the frequency quantization precision and converting the corresponding first binary number; and calculating the corrected The ratio of the amplitude and amplitude quantization precision of the parameter set is converted and the corresponding second binary number is obtained; the ratio of the phase and phase quantization precision of the corrected parameter set is calculated and converted to obtain the corresponding third binary number; The hexadecimal number, the second binary number, and the third binary number are connected in a preset order to constitute a parameter control code.

Step S8: Generate a CS local oscillator sequence by using the recently generated N parameter control codes.

Here is an example with reference to an example.

At time t0, the CS local oscillator sequence is generated using the initial value of the CS local oscillator sequence.

At time t1 after t0, the amplitude of the carrier signal in the N target channels is detected.

The amplitude compensation value of the CS local oscillation sequence at N frequencies is calculated by using the amplitudes of the carrier signals in the N target channels detected at time t1. The process of calculating the amplitude compensation value of the CS local oscillator sequence at a certain frequency includes: calculating a carrier signal of the target local channel corresponding to the frequency of the CS local oscillator sequence generated by the initial value of the CS local oscillator sequence at the frequency The difference in amplitude.

Using the calculated amplitude compensation value of the CS local oscillator sequence at N frequencies, the amplitude of the CS local oscillator sequence generated by the initial value of the CS local oscillator sequence at the corresponding frequency is corrected to obtain a corrected parameter set. For example, the amplitude of the CS local oscillator sequence at the frequency point 1 is 2, and the amplitude of the carrier signal in the target channel corresponding to the frequency point 1 is 3, and the amplitude compensation value of the CS local oscillation sequence at the frequency point 1 is 1, using The amplitude compensation value corrects the amplitude of the CS local oscillation sequence at the frequency point 1, and the corrected amplitude at the frequency point 1 is 3.

At the time when the next CS local oscillator sequence needs to be generated, for example, at time t2, N modified parameter sets are digitized to obtain N parameter control codes, and a new CS local oscillator sequence is generated by using N parameter control codes.

After the time t2, detecting the amplitude of the carrier signal in the N target channels, using the detected amplitude of the carrier signal in the N target channels, and the CS local oscillator sequence generated by using the initial value of the CS local oscillator sequence at the N corresponding frequencies The amplitude of the CS local oscillator sequence is determined at the N frequency, and the amplitude of the CS local oscillator sequence generated by the initial value of the CS local oscillator sequence at the corresponding frequency is corrected by the N amplitude compensation values, and the correction is obtained. After the parameter set. At the time when the next CS local oscillator sequence needs to be generated, a new CS local oscillator sequence is generated using the recently obtained modified parameter set.

That is, detecting the amplitude of the carrier signal in the N target channels, determining the N amplitude compensation values by using the amplitude of the carrier signal in the N target channels and the amplitude at the corresponding frequency in the initial value of the CS local oscillator sequence, and then using the amplitude compensation The value is corrected correspondingly to the initial value of the CS local oscillator sequence to obtain a modified parameter set, and then a new CS local oscillator sequence is generated by using the modified parameter set.

Or, after the time t0, detecting the amplitude of the carrier signal in the N target channels, using the amplitudes of the detected carrier signals in the N target channels, and the amplitude of the most recently generated CS local oscillator sequence at the N corresponding frequencies, Determining the amplitude compensation value of the CS local oscillator sequence at N frequencies, and using the N amplitude compensation values to calculate the amplitude of the most recently generated CS local oscillator sequence at the corresponding frequency Correct the line to get the corrected parameter set. At the time when the next CS local oscillator sequence needs to be generated, a new CS local oscillator sequence is generated using the recently obtained modified parameter set.

The CS local oscillator sequence generation method shown in FIG. 2 dynamically adjusts the amplitude of the corresponding single-tone local oscillator signal according to the influence of the target channel on the carrier signal, thereby performing the CS local oscillator sequence on the basis of the method shown in FIG. Real-time dynamic adjustment ensures that the receiver can accurately recover the original signal.

In the method for generating a CS local oscillator sequence disclosed in the above application, the generating of the CS local oscillator sequence by using the N parameter control codes may be performed by: generating a single-tone local oscillator signal corresponding to the N parameter control codes in a parallel manner; The generated N monophonic local oscillator signals are superimposed to obtain a CS local oscillator sequence.

In this case, the structure of the signal generating device is complicated, but the signal generating device can generate N single-tone local oscillator signals in parallel, so that the time required to generate the CS local oscillation sequence can be shortened.

In addition, in the CS local oscillator sequence generation method disclosed in the above application, the CS local oscillator sequence is generated by using the N parameter control codes, and the single tonebook corresponding to the N parameter control codes may be generated in a serial manner. The vibration signal; after that, the generated N single tone local oscillator signals are superposed to obtain a CS local oscillation sequence.

In this case, the structure of the signal generating device is relatively simple, and the time required to generate the CS local oscillation sequence is slightly longer.

The present application discloses a CS local oscillator sequence generating method, and the present application also discloses a corresponding CS local oscillator sequence generating device. The CS local oscillator sequence generating device can simplify the process of adjusting the CS local oscillator sequence.

Referring to FIG. 3, FIG. 3 is a schematic structural diagram of a CS local oscillator sequence generating apparatus according to an embodiment of the present application. The CS local oscillation sequence generating device includes a controller 10 and a signal generator 20.

among them:

The controller 10 determines an initial value of the CS local oscillator sequence, and the initial value of the local oscillator sequence includes N parameters. Set, N is an integer greater than 1, wherein a parameter set includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency, and the controller 10 digitizes the N parameter sets to obtain N parameter control codes.

The initial value of the CS local oscillator sequence includes a plurality of frequencies, and the amplitude and phase of the CS local oscillator sequence at each frequency. In this application, a frequency, and the amplitude and phase of the CS local oscillator sequence at the frequency are taken as a parameter set. The parameter control code generated by controller 10 is determined by the frequency of the CS local oscillator sequence and the amplitude and phase at that frequency.

The signal generating device 20 generates a CS local oscillator sequence by using N parameter control codes output by the controller 10, wherein the CS local oscillator sequence is superposed by N single-tone local oscillator signals, and a single-tone local oscillator signal corresponds to a parameter control code. .

In the process of generating the CS local oscillator sequence, each parameter control code is independent in the process of generating the CS local oscillator sequence, and the process of using the single-tone local oscillator signal generated by the parameter control code is also independent, by adjusting the parameter concentration. The frequency and the amplitude and phase of the CS local oscillator sequence at this frequency can generate a new parameter control code, correspondingly generate a new single-tone local oscillator signal, and complete the amplitude of the CS local oscillator sequence at a certain frequency. The phase adjustment simplifies the process of adjusting the CS local oscillator sequence and also makes the operation of adjusting the CS local oscillator sequence more flexible. In addition, the receiver can recover the signal by using the CS local oscillator sequence generated by the device disclosed in the present application, which can reduce the white noise of the receiver and improve the signal to noise ratio of the demodulation. Moreover, the CS local oscillator sequence generating apparatus disclosed in the present application has low hardware complexity.

It should be noted that the CS local oscillation sequence generating apparatus shown in FIG. 3 of the present application is applied to any signal transmitting and receiving apparatus, such as a transmitter and a receiver, which need to use a CS local oscillation sequence.

In an implementation, the controller 10 can digitize the parameter set in various ways to obtain a corresponding parameter control code.

For example, the controller 10 digitizes a parameter set, including: the controller calculates a ratio of the frequency and frequency quantization precision of the parameter set and converts the corresponding first binary number, and calculates the amplitude and amplitude quantization precision of the parameter set. Ratio and convert to get the corresponding second binary a number, calculating a ratio of phase and phase quantization precision in the parameter set and converting to obtain a corresponding third binary number, and the first binary number, the second binary number, and the third binary number are in a predetermined order The connection constitutes a parameter control code.

Alternatively, the controller 10 determines a first binary number corresponding to the frequency of the parameter set by searching a pre-stored mapping relationship between the frequency and the binary number, and determines a second corresponding to the amplitude of the parameter set by searching a mapping relationship between the pre-stored amplitude and the binary number. a binary number, by finding a mapping relationship between the phase and the binary number, determining a third binary number corresponding to the phase in the parameter set, and dividing the first binary number, the second binary number, and the third binary number according to The preset sequence connection constitutes a parameter control code.

Further, in the case where the CS local oscillation sequence generating apparatus disclosed in the present application is applied to a receiver, the controller 10 can be modified such that the CS local oscillation sequence generating apparatus disclosed in the present application can influence the influence of a channel on a signal. The parameter control code is adjusted in real time to ensure that the receiver can accurately recover the original signal.

Specifically, the controller 10 is further configured to:

Detecting the amplitude of the carrier signal in the N target channels, determining the amplitude compensation value of the CS local oscillator sequence at the N frequencies by using the detected amplitudes of the carrier signals in the N target channels, using the CS local oscillator sequence at the N frequencies The amplitude compensation value is corrected for the amplitude of the reference CS local oscillator sequence at the corresponding frequency, and the corrected parameter set is obtained, and the N modified parameter sets are respectively digitized to obtain N parameter control codes, and the signal generating device 20 is provided. The N parameter control codes obtained by the transmission process. Wherein, the N target channels are: N frequencies in the initial value of the CS local oscillator sequence The rate corresponds to the N channels.

The signal generating device 20 generates N single-tone local oscillator signals by using the N parameter control codes output from the controller 10, and superimposes the N single-tone local oscillator signals to obtain a CS local oscillator sequence. Moreover, the amplitude of each frequency of the CS local oscillator sequence is consistent with the corrected amplitude.

The reference local oscillator sequence may be a CS local oscillator sequence generated by using an initial value of the CS local oscillator sequence, or may be a CS local oscillator sequence generated last time.

In the implementation, the controller 10 determines the amplitude compensation value of the CS local oscillation sequence at one frequency, and may adopt various manners. For example, the controller 10 calculates the difference between the first amplitude and the second amplitude, and determines that the difference is the CS The amplitude compensation value of the vibration sequence at this frequency. The first amplitude is the amplitude of the reference CS local oscillator sequence at the frequency, and the second amplitude is the amplitude of the carrier signal in the target channel corresponding to the frequency.

The CS local oscillator sequence generating apparatus disclosed in the above application dynamically adjusts the amplitude of the corresponding single-tone local oscillator signal according to the influence of the target channel on the carrier signal, thereby real-time dynamic adjustment of the CS local oscillator sequence to ensure that the receiver can accurately recover the original signal. .

In each of the CS local oscillation sequence generating apparatuses disclosed in the present application, the signal generating apparatus 20 can be implemented in various configurations. The following description will be made with reference to Figs. 4 and 5, respectively.

In the CS local oscillation sequence generating device shown in FIG. 4, the signal generating device 20 includes a frequency synthesizer 21 and a plurality of signal generators 22 arranged in parallel. Among them, a plurality of signal generators 22 are connected to the controller 10 and the frequency synthesizer 21, respectively. The controller 10 outputs the N parameter control codes in parallel to the plurality of signal generators 22, the plurality of signal generators 22 generate a single-tone local oscillator signal corresponding to the parameter control code received therefrom, and the frequency synthesizer 23 pairs the plurality of signal generators The generated single tone local oscillator signal is superimposed to obtain a CS local oscillator sequence.

That is, the controller 10 outputs one of the N parameter control codes to the N signal generators 22, and the controller 10 outputs different parameter control codes to the different signal generators 22. The signal generator 22 generates a tone local oscillation signal corresponding to the received parameter control code, and the frequency of the tone local oscillation signal is equal to the frequency of the parameter set corresponding to the parameter control code received by the signal generator 22. The amplitude of the tone local oscillator signal is consistent with the amplitude of the parameter set corresponding to the parameter control code received by the signal generator 22, and the phase of the tone local oscillator signal and the parameter control received by the signal generator 22 The phases in the parameter set corresponding to the code are the same.

It should be noted that the N parameter control codes output by the controller 10 to the signal generator 22 may be parameter control codes obtained by using N parameter sets in the initial values of the CS local oscillator sequence, or may be using the modified N. The parameter control code obtained from the parameter set.

In the CS local oscillation sequence generating device shown in FIG. 4, the signal generating device 20 includes a frequency synthesizer 21 and a plurality of signal generators 22 arranged in parallel, and the plurality of signal generators 22 can simultaneously perform an operation of generating a single-tone local oscillation signal. The frequency synthesizer 21 superimposes the single-tone local oscillator signal generated by the signal generator 22 to obtain a CS local oscillation sequence. Since the signal generator 22 can simultaneously perform an operation of generating a single-tone local oscillation signal, the time required to generate the CS local oscillation sequence can be shortened.

In practice, the signal generator 22 can be a single tone generator or a multitone generator. For example, the signal generator 22 can employ a DDS (Direct Digital Frequency Synthesizer).

In the CS local oscillation sequence generating device shown in FIG. 5, the signal generating device 20 includes a multi-tone signal generator 23. The controller 10 sequentially outputs the N parameter control codes to the multi-tone signal generator 23, and the multi-tone signal generator 23 sequentially generates a single-tone local oscillator signal corresponding to the received parameter control code, and generates a generated single-tone local oscillator. The signals are superimposed to obtain a CS local oscillator sequence.

That is, the controller 10 outputs the N parameter control codes one by one to the multi-tone signal generator 23 at a specific time interval, and after receiving the parameter control code, the multi-tone signal generator 23 generates a tone corresponding to the parameter control code. The local oscillator signal, after generating the N single-tone local oscillator signals corresponding to the N parameter control codes, the multi-tone signal generator 23 superimposes the N single-tone local oscillator signals to obtain a CS local oscillator sequence.

It should be noted that the N parameter control codes output by the controller 10 to the multi-tone signal generator 23 may be parameter control codes obtained by using N parameter sets in the initial values of the CS local oscillator sequence, or may be used after correction. The parameter control code obtained from the N parameter sets.

In the CS local oscillation sequence generating device shown in FIG. 5, the signal generating device 20 includes a multi-tone signal transmission. The multi-tone signal generator 23 generates a single-tone local oscillator signal corresponding to the N parameter control codes one by one, and superimposes the N single-tone local oscillator signals to obtain a CS local oscillation sequence. The structure of the signal generating device 20 shown in Fig. 5 is simpler.

In practice, the multi-tone signal generator 23 can employ DDS.

The application also discloses a transmitter comprising a controller and a signal generating device.

The controller determines an initial value of the CS local oscillator sequence, the initial value of the local oscillator sequence includes N parameter sets, and N is an integer greater than 1, wherein one parameter set includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency The controller digitizes the N parameter sets to obtain N parameter control codes. The signal generating device generates a CS local oscillator sequence by using N parameter control codes output by the controller. The CS local oscillator sequence is superposed by N single-tone local oscillator signals, and a single-tone local oscillator signal corresponds to a parameter control code.

In the process of generating the CS local oscillator sequence, each parameter control code is independent, and the process of using the single-tone local oscillator signal generated by the parameter control code is also independent, by adjusting the frequency of the parameter set, and The amplitude and phase of the CS local oscillator sequence at this frequency can generate a new parameter control code, correspondingly generate a new single-tone local oscillator signal, and complete the adjustment of the amplitude and phase of the CS local oscillator sequence at a certain frequency. The process of adjusting the CS local oscillator sequence is simplified, and the operation of adjusting the CS local oscillator sequence is also more flexible.

In the implementation, the process of digitizing the parameter set by the controller in the transmitter, and the structure and working process of the signal generating device are consistent with the foregoing description, and details are not described herein.

The present application also discloses a receiver including a controller and a signal generating device.

The controller determines an initial value of the CS local oscillator sequence, the initial value of the local oscillator sequence includes N parameter sets, and N is an integer greater than 1, wherein one parameter set includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency The controller digitizes the N parameter sets to obtain N parameter control codes. The signal generating device generates a CS local oscillator sequence by using N parameter control codes output by the controller, and the CS local oscillator sequence is superposed by N single-tone local oscillator signals, and a single-tone local oscillator signal The number corresponds to a parameter control code.

In the process of generating the CS local oscillator sequence, each parameter control code is independent, and the process of using the single-tone local oscillator signal generated by the parameter control code is also independent, by adjusting the frequency of the parameter set, and The amplitude and phase of the CS local oscillator sequence at this frequency can generate a new parameter control code, correspondingly generate a new single-tone local oscillator signal, and complete the adjustment of the amplitude and phase of the CS local oscillator sequence at a certain frequency. The process of adjusting the CS local oscillator sequence is simplified, and the operation of adjusting the CS local oscillator sequence is also more flexible. In addition, the receiver can recover the signal by using the CS local oscillator sequence generated by the present application, which can reduce the white noise of the receiver and improve the signal to noise ratio of the demodulation.

Further, in order to improve the accuracy of the receiver to restore the original signal, the controller may be improved. Specifically, the controller is further configured to: detect the amplitude of the carrier signal in the N target channels, and use the detected N target channels. The amplitude of the carrier signal determines the amplitude compensation value of the CS local oscillator sequence at N frequencies, and the amplitude of the reference CS local oscillator sequence at the corresponding frequency is corrected by the amplitude compensation value of the CS local oscillation sequence at the N frequencies, and the correction is obtained. The subsequent parameter sets respectively digitize the N modified parameter sets to obtain N parameter control codes, and transmit the processed N parameter control codes to the signal generating device 20. The N target channels are: N channels corresponding to N frequencies in the initial value of the CS local oscillator sequence.

In the implementation, the process of digitizing the parameter set by the controller in the receiver, and the structure and working process of the signal generating device are consistent with the foregoing description, and details are not described herein.

The functions described in the method of the present embodiment can be stored in a computing device readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, a portion of the embodiments of the present application that contributes to the prior art or a portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a The computing device (which may be a personal computer, server, mobile computing device, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, and a read only memory (ROM, Read-Only Memory), random access memory (RAM), disk or optical disk, and other media that can store program code.

The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same or similar parts of the respective embodiments may be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to make or use the application. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application is not limited to the embodiments shown herein, but is to be accorded the broadest scope of the principles and novel features disclosed herein.

Claims

A method for generating a CS local oscillator sequence, comprising:

Determining an initial value of the CS local oscillator sequence, the initial value of the CS local oscillator sequence comprising N parameter sets, wherein one of the parameter sets includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency, and N is greater than 1. Integer

Digitizing the N parameter sets to obtain N parameter control codes;

The CS local oscillator sequence is generated by using N parameter control codes, wherein the CS local oscillator sequence is superposed by N monophonic local oscillator signals, and a single local oscillator signal corresponds to a parameter control code.
The method of claim 1 wherein digitizing a set of parameters comprises:

Calculating a ratio of the frequency and the frequency quantization precision of the parameter set and converting the corresponding first binary number; calculating a ratio of the amplitude and the amplitude quantization precision of the parameter set and converting the corresponding second binary number; calculating the parameter set a ratio of phase and phase quantization precision and converted to a corresponding third binary number;

The first binary number, the second binary number, and the third binary number are connected in a preset order to form a parameter control code.
The method according to claim 1 or 2, wherein the method further comprises:

Detecting amplitudes of carrier signals in the N target channels, where the N target channels are: N channels corresponding to N frequencies in the initial values of the CS local oscillator sequence;

Determining an amplitude compensation value of the CS local oscillation sequence at N frequencies by using the detected amplitudes of the carrier signals in the N target channels;

Using the amplitude compensation value of the CS local oscillator sequence at N frequencies, the amplitude of the reference CS local oscillator sequence at the corresponding frequency is corrected to obtain a corrected parameter set;

Digitizing the N modified parameter sets to obtain N parameter control codes;

The CS local oscillator sequence is generated using the recently generated N parameter control codes.
The method of claim 3 wherein determining the CS local oscillator sequence is in a The amplitude compensation value at the frequency, including:

Calculating a difference between the first amplitude and the second amplitude, determining that the difference is an amplitude compensation value of the CS local oscillator sequence at the frequency;

The first amplitude is the amplitude of the reference CS local oscillator sequence at the frequency, and the second amplitude is the amplitude of the carrier signal in the target channel corresponding to the frequency.
The method according to claim 4, wherein the reference CS local oscillator sequence is a CS local oscillator sequence generated by using an initial value of a CS local oscillator sequence, or a CS local oscillator sequence generated last time.
The method according to any one of claims 1 to 5, wherein the generating the CS local oscillator sequence by using the N parameter control codes comprises:

Generating a single-tone local oscillator signal corresponding to the N parameter control codes in a parallel manner;

The generated N monophonic local oscillator signals are superimposed to obtain a CS local oscillator sequence.
The method according to any one of claims 1 to 5, wherein the generating the CS local oscillator sequence by using the N parameter control codes comprises:

Generating a single-tone local oscillator signal corresponding to the N parameter control codes in a serial form;

The generated N monophonic local oscillator signals are superimposed to obtain a CS local oscillator sequence.
A CS local oscillator sequence generating device, comprising: a controller and a signal generating device;

The controller determines an initial value of the CS local oscillator sequence, the initial value of the local oscillator sequence includes N parameter sets, wherein one of the parameter sets includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency, and N is An integer greater than 1, respectively digitizing the N parameter sets to obtain N parameter control codes;

The signal generating device generates a CS local oscillator sequence by using N parameter control codes output by the controller, wherein the CS local oscillator sequence is superposed by N single local oscillator signals, a single local oscillator signal and a parameter. The control code corresponds.
The CS local oscillator sequence generating apparatus according to claim 8, wherein the controller digitizes a parameter set, including:

The controller calculates a ratio of frequency and frequency quantization precision of the parameter set and converts the corresponding first binary number, calculates a ratio of the amplitude and amplitude quantization precision of the parameter set, and converts the corresponding second binary number, Calculating a ratio of phase and phase quantization precision in the parameter set and converting to obtain a corresponding third binary number, the first binary number, the second binary number, and the third binary number The constituent parameter control codes are connected in a preset order.
The CS local oscillator sequence generating apparatus according to claim 8 or 9, wherein the controller is further configured to:

Detecting the amplitude of the carrier signal in the N target channels, determining the amplitude compensation value of the CS local oscillator sequence at the N frequencies by using the detected amplitudes of the carrier signals in the N target channels, using the CS local oscillator sequence at the N frequencies The amplitude compensation value is corrected for the amplitude of the reference CS local oscillator sequence at the corresponding frequency, and the corrected parameter set is obtained, and the N modified parameter sets are respectively digitized to obtain N parameter control codes, and the signal is generated to the signal. N parameter control codes obtained by the device transmission processing;

The N target channels are: N channels corresponding to N frequencies in the initial values of the CS local oscillator sequence.
The CS local oscillator sequence generating apparatus according to claim 10, wherein the controller determines an amplitude compensation value of the CS local oscillation sequence at a frequency, comprising:

The controller calculates a difference between the first amplitude and the second amplitude, and determines that the difference is an amplitude compensation value of the CS local oscillator sequence at the frequency;

The first amplitude is the amplitude of the reference CS local oscillator sequence at the frequency, and the second amplitude is the amplitude of the carrier signal in the target channel corresponding to the frequency.
The CS local oscillation sequence generating apparatus according to any one of claims 8 to 11, wherein the signal generating means comprises a frequency synthesizer and a plurality of signal generators arranged in parallel;

The controller outputs the N parameter control codes in parallel to the plurality of signal generators;

The plurality of signal generators generate a single tone local oscillator signal corresponding to the parameter control code received thereby;

The frequency synthesizer superimposes the single-tone local oscillator signals generated by the plurality of signal generators to obtain a CS local oscillator sequence.
The CS local oscillation sequence generating apparatus according to any one of claims 8 to 11, wherein the signal generator comprises a multi-tone signal generator;

The controller sequentially outputs the N parameter control codes to the multi-tone signal generator;

The multi-tone signal generator sequentially generates a single-tone local oscillator signal corresponding to the received parameter control code, and superimposes the generated single-tone local oscillator signal to obtain a CS local oscillator sequence.
A transmitter, characterized in that the transmitter comprises a controller and a signal generating device;

The controller determines an initial value of the CS local oscillator sequence, the initial value of the local oscillator sequence includes N parameter sets, wherein one of the parameter sets includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency, and N is An integer greater than 1, respectively digitizing the N parameter sets to obtain N parameter control codes;

The signal generating device generates a CS local oscillator sequence by using N parameter control codes output by the controller, wherein the CS local oscillator sequence is superposed by N single local oscillator signals, a single local oscillator signal and a parameter. The control code corresponds.
A receiver, characterized in that the receiver comprises a controller and a signal generating device;

The controller determines an initial value of the CS local oscillator sequence, the initial value of the local oscillator sequence includes N parameter sets, wherein one of the parameter sets includes a frequency, an amplitude and a phase of the CS local oscillator sequence at the frequency, and N is An integer greater than 1, respectively digitizing the N parameter sets to obtain N parameter control codes;

The signal generating device generates a CS local oscillator sequence by using N parameter control codes output by the controller, wherein the CS local oscillator sequence is superposed by N single local oscillator signals, a single local oscillator signal and a parameter. The control code corresponds.
The receiver according to claim 15, wherein said controller is further configured to:

Detecting the amplitude of the carrier signal in the N target channels, determining the amplitude compensation value of the CS local oscillator sequence at the N frequencies by using the detected amplitudes of the carrier signals in the N target channels, using the CS local oscillator sequence at the N frequencies The amplitude compensation value is corrected for the amplitude of the reference CS local oscillator sequence at the corresponding frequency, and the corrected parameter set is obtained, and the N modified parameter sets are respectively digitized to obtain N parameter control codes, and the signal is generated to the signal. N parameter control codes obtained by the device transmission processing;

The N target channels are: N channels corresponding to N frequencies in the initial values of the CS local oscillator sequence.