Signal determination method and device of receiver, storage medium and processor

Abstract

The invention discloses a signal determination method and device of a receiver, a storage medium and a processor. The method comprises the following steps: in response to a first target radio frequency signal from a transmitter, determining a baseband signal corresponding to the first target radio frequency signal; extracting corresponding first original parameters of the transmitter in the I path and the Q path and corresponding second original parameters of the receiver in the I path and the Q path from the baseband signal; determining target relation information between the first original parameter and the second original parameter; and inputting the target relation information and the first target radio frequency signal into a target model for demodulation to obtain a second target radio frequency signal transmitted by the receiver in the I path and the Q path respectively. According to the invention, the technical problem of amplitude and phase errors of the I-path carrier and the Q-path carrier is solved.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a signal determination method, device, storage medium and processor of a receiver. Background Art

[0002] At present, in the amplitude and phase estimation process of the transmitter and the receiver, due to the nonlinearity of the device, the carriers of the I-path and Q-path may have amplitude and phase errors, which may cause the transmitter and the receiver to have in-phase quadrature (IQ) mismatch, resulting in a technical problem that the carriers of the I-path and Q-path may have amplitude and phase errors.

[0003] With respect to the technical problem that both the I-channel and Q-channel carriers have amplitude and phase errors, no effective solution has been proposed so far. Summary of the invention

[0004] The embodiments of the present invention provide a signal determination method, device, storage medium and processor of a receiver, so as to at least solve the technical problem that the carriers of both I-path and Q-path have amplitude and phase errors.

[0005] According to one aspect of an embodiment of the present invention, a signal determination method of a receiver is provided. The method may include: in response to a first target radio frequency signal from a transmitter, determining a baseband signal corresponding to the first target radio frequency signal, wherein the first target radio frequency signal is obtained by modulating an original radio frequency signal to be modulated by the transmitter; extracting first original parameters corresponding to the transmitter in an I-path and a Q-path respectively, and second original parameters corresponding to the receiver in an I-path and a Q-path respectively from the baseband signal, wherein the I-path and the Q-path are orthogonal to each other, the I-path is used to transmit the real part of the baseband signal, the Q-path is used to transmit the imaginary part of the baseband signal, the first original parameters are used to represent the amplitude parameters and phase parameters corresponding to the transmitter in the I-path and the Q-path respectively, and the second original parameters are used to represent the amplitude parameters and phase parameters corresponding to the receiver in the I-path and the Q-path respectively; determining target relationship information between the first original parameters and the second original parameters, wherein the target relationship information is used to represent the relationship between the first original parameters and the second original parameters arranged in a matrix structure; inputting the target relationship information and the first target radio frequency signal into a target model for demodulation, and obtaining the second target radio frequency signals transmitted by the receiver in the I-path and the Q-path respectively, wherein the target model is used to represent the mapping relationship between the first target radio frequency signal and the second target radio frequency signal.

[0006] Optionally, determining the target relationship information between the first original parameter and the second original parameter includes: determining a correlation matrix between the first original parameter and the second original parameter; performing dimensionality reduction processing on the correlation matrix; and determining the correlation matrix after dimensionality reduction processing as the target relationship information.

[0007] Optionally, the target relationship information and the first target RF signal are input into the target model for demodulation to obtain a second target RF signal transmitted by the receiver in the I path and the Q path respectively, including: determining a target parameter in the target relationship information, wherein the target parameter is used to represent at least one element in the association matrix; inputting the target parameter and the first target RF signal into the target model for demodulation to obtain a second target RF signal.

[0008] Optionally, determining the target parameters in the target relationship information includes: determining an expected value of an association matrix; according to the expected value, determining the position information corresponding to the initial parameters in the target relationship information as the initial position information in the target gradient descent model, wherein the initial parameters are used to represent at least one initial element in the association matrix, and the target gradient descent model is obtained by training the original gradient descent model based on at least the initial position information samples and the target parameter samples, wherein the initial position information samples are historical position information that satisfies the original gradient descent model, and the target parameter samples are historical parameter samples that satisfy the original gradient descent model; based on the initial position information, determining the target parameters.

[0009] Optionally, based on the initial position information, determining the target parameters includes: determining at least one first target parameter that meets the expected value, wherein the first target parameter is used to represent the descent slope of the target gradient descent model; determining the target parameters based on the initial position information and the at least one first target parameter.

[0010] Optionally, based on the initial position information and at least one first target parameter, determining the target parameter includes: in response to the expected value being the target expected value, obtaining at least one second target parameter that meets the target expected value, wherein the second target parameter is used to represent the target descent slope of the target gradient descent model that meets the target expected value; adjusting at least one first target parameter to at least one second target parameter; determining the target parameter based on the initial position information and at least one second target parameter.

[0011] Optionally, based on the initial position information and at least one second target parameter, determining the target parameter includes: determining a convergence rate of a target gradient descent model; according to the convergence rate, inputting the initial position information and at least one second target parameter into the target gradient descent model for gradient descent processing to obtain the target parameter.

[0012] Optionally, extracting first original parameters corresponding to the transmitting device in the I path and the Q path respectively, and second original parameters corresponding to the receiving device in the I path and the Q path respectively from the baseband signal, including: calibrating the baseband signal; extracting the first original parameter and the second original parameter from the calibrated baseband signal.

[0013] According to another aspect of an embodiment of the present invention, a signal transmission method of a transmitter is provided. The method may include: obtaining an original radio frequency signal; modulating the original radio frequency signal to obtain a first target radio frequency signal, wherein the target relationship information between the first target radio frequency signal and the first original parameter and the second original parameter is input into the target model for demodulation, and the second target radio frequency signal transmitted by the receiver in the I path and the Q path is obtained, the I path and the Q path are orthogonal to each other, the I path is used to transmit the real part of the baseband signal, and the Q path is used to transmit the imaginary part of the baseband signal, the target relationship information is used to represent the relationship between the first original parameter and the second original parameter arranged according to the matrix structure, the target model is used to represent the mapping relationship between the first target radio frequency signal and the second target radio frequency signal, the first original parameter and the second original parameter are extracted from the baseband signal corresponding to the first target radio frequency signal, the first original parameter is used to represent the amplitude parameter and phase parameter corresponding to the transmitter in the I path and the Q path, respectively, and the second original parameter is used to represent the amplitude parameter and phase parameter corresponding to the receiver in the I path and the Q path, respectively; and sending the first target radio frequency signal to the receiver.

[0014] According to one aspect of an embodiment of the present invention, a signal determination device of a receiver is provided. The device may include: a first determination unit, for determining a baseband signal corresponding to the first target RF signal in response to a first target RF signal from a transmitter, wherein the first target RF signal is obtained by modulating the original RF signal to be modulated by the transmitter; an extraction unit, for extracting the first original parameters corresponding to the transmitter in the I path and the Q path, respectively, and the second original parameters corresponding to the receiver in the I path and the Q path, respectively, from the baseband signal, wherein the I path and the Q path are orthogonal to each other, the I path is used to transmit the real part of the baseband signal, the Q path is used to transmit the imaginary part of the baseband signal, and the first original parameters are used to represent the amplitude of the transmitter in the I path and the Q path, respectively. a second determining unit, used to determine target relationship information between the first original parameter and the second original parameter, wherein the target relationship information is used to represent the relationship between the first original parameter and the second original parameter arranged in a matrix structure; a demodulation unit, used to input the target relationship information and the first target RF signal into the target model for demodulation, and obtain the second target RF signal transmitted by the receiver in the I path and the Q path respectively, wherein the target model is used to represent the mapping relationship between the first target RF signal and the second target RF signal.

[0015] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the signal determination method of the receiver of the present invention.

[0016] According to another aspect of an embodiment of the present invention, a processor is further provided, wherein the processor is used to run a program, wherein when the program is run by the processor, the signal determination method of the receiver of the embodiment of the present invention is executed.

[0017] According to another aspect of an embodiment of the present invention, a computer program product is further provided. The computer program product includes a computer program. When the computer program is executed by a processor, the signal determination method of the receiver of the embodiment of the present invention is implemented.

[0018] In the embodiment of the present invention, when determining the signal of the receiver, in response to the first target radio frequency signal from the transmitter, a baseband signal corresponding to the first target radio frequency signal can be determined, and then from the determined baseband signal, the first original parameter corresponding to the transmitter in the I path and the Q path, and the second original parameter corresponding to the receiver in the I path and the Q path, can be extracted. That is, the embodiment of the present invention can obtain the amplitude parameter and phase parameter corresponding to the transmitter in the I path and the Q path, and the amplitude parameter and phase parameter corresponding to the receiver in the I path and the Q path, respectively, and then determine the target relationship information between the obtained first original parameter and the second original parameter, and input the determined target relationship information and the first target radio frequency signal into the target model for demodulation, and the second target radio frequency signal transmitted by the receiver in the I path and the Q path, respectively, can be obtained, thereby achieving the purpose of ensuring the accuracy of the estimation of the amplitude and phase, solving the technical problem that the carriers of the I path and the Q path have errors in amplitude and phase, and achieving the technical effect of avoiding the carriers of the I path and the Q path from having errors in amplitude and phase. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] FIG1( a ) is a flow chart of a signal determination method of a receiver according to an embodiment of the present invention;

[0021] FIG1( b ) is a flow chart of a signal sending method of a transmitter according to an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of a communication system model of IQ modulation and demodulation according to the related art;

[0023] Figure 3 is a schematic diagram of an EVM effect after repeated iterations according to an embodiment of the present invention;

[0024] FIG4( a ) is a schematic diagram of a signal determination device of a receiver according to an embodiment of the present invention;

[0025] FIG4( b ) is a schematic diagram of a signal sending device of a transmitter according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] According to an embodiment of the present invention, a signal determination method for a receiver is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0029] FIG. 1( a ) is a flow chart of a signal determination method of a receiver according to an embodiment of the present invention. As shown in FIG. 1( a ), the method may include the following steps:

[0030] Step S101: In response to a first target radio frequency signal from a transmitter, a baseband signal corresponding to the first target radio frequency signal is determined.

[0031] In the technical solution provided in the above step S101 of the present invention, the above first target radio frequency signal may be a radio frequency signal to be sent by a transmitter to a receiver.

[0032] In this embodiment, in response to the first target RF signal from the transmitter, a baseband signal corresponding to the first target RF signal is determined. Optionally, in this embodiment, when the receiver receives the first target RF signal sent by the transmitter, the first target RF signal is denoised, the denoised first target video signal is enhanced, and the enhanced first target RF signal is converted to obtain a baseband signal corresponding to the first target RF signal.

[0033] It should be noted that the above denoising operation can be used to remove the noise signal in the first target RF signal, and the above enhancement operation can be used to enhance the non-noise signal in the first target RF signal.

[0034] Step S102: extracting first original parameters of the transmitter in the I path and the Q path respectively, and second original parameters of the receiver in the I path and the Q path respectively, from the baseband signal.

[0035] In the technical solution provided in the above step S102 of the present invention, the above first original parameters can be used to represent the amplitude parameters and phase parameters corresponding to the transmitter in the I path and Q path respectively, and the above second original parameters can be used to represent the amplitude parameters and phase parameters corresponding to the receiver in the I path and Q path respectively.

[0036] In this embodiment, the I path and the Q path may be orthogonal to each other. The I path may be used to transmit the real part of the baseband signal, and the Q path may be used to transmit the imaginary part of the baseband signal.

[0037] In this embodiment, the amplitude parameters corresponding to the transmitter in the I path and the Q path respectively may include: the amplitude factor corresponding to the transmitter in the I path and the amplitude factor corresponding to the transmitter in the Q path, the phase parameters corresponding to the transmitter in the I path and the Q path respectively may include: the phase factor corresponding to the transmitter in the I path and the phase factor corresponding to the transmitter in the Q path, the amplitude parameters corresponding to the receiver in the I path and the Q path respectively may include: the amplitude factor corresponding to the receiver in the I path and the amplitude factor corresponding to the receiver in the Q path, and the phase parameters corresponding to the receiver in the I path and the Q path respectively may include: the phase factor corresponding to the receiver in the I path and the phase factor corresponding to the receiver in the Q path.

[0038] In this embodiment, after determining the baseband signal corresponding to the first target RF signal from the transmitter in response to the first target RF signal from the transmitter, the first original parameters corresponding to the transmitter in the I path and Q path, respectively, and the second original parameters corresponding to the receiver in the I path and Q path, respectively, are extracted from the baseband signal. Optionally, this embodiment, on the basis of determining the baseband signal corresponding to the first target RF signal, calibrates the baseband signal and extracts parameters from the calibrated baseband signal, thereby obtaining the first original parameters corresponding to the transmitter in the I path and Q path, respectively, and the second original parameters corresponding to the receiver in the I path and Q path, respectively, for example, the amplitude parameters and phase parameters corresponding to the transmitter in the I path and Q path, and the amplitude parameters and phase parameters corresponding to the receiver in the I path and Q path, respectively, can be obtained.

[0039] It should be noted that the above-mentioned calibration operation may include at least one of the following operations: DC bias calibration operation and frequency offset calibration operation, etc., and the above-mentioned parameter extraction operation may include at least one of the following operations: demodulation operation, filtering operation and spectrum analysis operation, etc., which are only given as examples here and are not specifically limited.

[0040] Step S103: determining target relationship information between the first original parameter and the second original parameter.

[0041] In the technical solution provided in step S103 of the present invention, the target relationship information can be used to represent the relationship between the first original parameter and the second original parameter arranged in a matrix structure, wherein the matrix structure can be but is not limited to a 2×2 matrix structure, which is only used as an example and is not specifically limited.

[0042] In this embodiment, after extracting the first original parameters corresponding to the transmitter in the I path and the Q path, respectively, and the second original parameters corresponding to the receiver in the I path and the Q path, respectively, from the baseband signal, the target relationship information between the first original parameter and the second original parameter is determined. Optionally, this embodiment can determine the association matrix between the first original parameter and the second original parameter on the basis of determining the first original parameter and the second original parameter, and according to the determined association matrix, the target relationship information between the first original parameter and the second original parameter can be determined, that is, the relationship between the first original parameter and the second original parameter arranged according to the matrix structure can be determined.

[0043] Step S104: input the target relationship information and the first target radio frequency signal into the target model for demodulation to obtain the second target radio frequency signal transmitted by the receiver in the I path and the Q path respectively.

[0044] In the technical solution provided in the above step S104 of the present invention, the above target model can be used to represent the mapping relationship between the first target radio frequency signal and the second target radio frequency signal.

[0045] In this embodiment, the second target radio frequency signal may be used to represent the radio frequency signal transmitted by the receiver in the I path and the radio frequency signal transmitted by the receiver in the Q path.

[0046] In this embodiment, after determining the target relationship information between the first original parameter and the second original parameter, the target relationship information and the first target radio frequency signal are input into the target model for demodulation to obtain the second target radio frequency signal transmitted by the receiver in the I path and the Q path respectively. Optionally, this embodiment inputs the target relationship information between the first original parameter and the second original parameter, and the first target radio frequency signal, into the target model for demodulation to obtain the second target radio frequency signal transmitted by the receiver in the I path and the Q path respectively, for example, the radio frequency signal transmitted by the receiver in the I path and the radio frequency signal transmitted by the receiver in the Q path can be obtained, which is only used as an example and is not specifically limited.

[0047] In the above steps S101 to S104 of the present application, when determining the signal of the receiver, in response to the first target RF signal from the transmitter, a baseband signal corresponding to the first target RF signal can be determined, and then from the determined baseband signal, the first original parameter corresponding to the transmitter in the I path and Q path, and the second original parameter corresponding to the receiver in the I path and Q path, can be extracted. That is, the embodiment of the present invention can obtain the amplitude parameter and phase parameter corresponding to the transmitter in the I path and Q path, and the amplitude parameter and phase parameter corresponding to the receiver in the I path and Q path, respectively, from the determined baseband signal, and then determine the target relationship information between the obtained first original parameter and the second original parameter, and input the determined target relationship information and the first target RF signal into the target model for demodulation, so as to obtain the second target RF signal transmitted by the receiver in the I path and Q path, respectively, thereby achieving the purpose of ensuring the accuracy of the estimation of amplitude and phase, solving the technical problem that the carriers of the I path and Q path have amplitude and phase errors, and achieving the technical effect of avoiding the carriers of the I path and Q path from having amplitude and phase errors.

[0048] The above method of this embodiment is further introduced below.

[0049] As an optional implementation method, step S103, determining the target relationship information between the first original parameter and the second original parameter, includes: determining the association matrix between the first original parameter and the second original parameter; performing dimensionality reduction processing on the association matrix; and determining the association matrix after dimensionality reduction processing as the target relationship information.

[0050] In this embodiment, after extracting the first original parameter corresponding to the transmitter in at least one branch and the second original parameter corresponding to the receiver in at least one branch from the baseband signal, the association matrix between the first original parameter and the second original parameter is determined. Optionally, on the basis of determining the first original parameter corresponding to the transmitter in at least one branch and the second original parameter corresponding to the receiver in at least one branch, the embodiment can determine the association matrix between the first original parameter and the second original parameter. In this embodiment, after determining the association matrix between the first original parameter and the second original parameter, the determined association matrix is ​​subjected to dimensionality reduction processing, and the association matrix after dimensionality reduction processing is determined as the target relationship information. Optionally, on the basis of determining the association matrix, the embodiment performs dimensionality reduction conversion on the determined association matrix, and determines the association matrix after dimensionality reduction conversion as the target relationship information. Since the dimension of the association matrix is ​​reduced, the technical effect of reducing the complexity of the original model is achieved. Among them, the association matrix between the first original parameter and the second original parameter can be represented by the 2x2 matrix in the following formula (1):

[0051]

[0052] Among them, y i Can be used to represent the signal received by the receiver in path i, y q It can be used to represent the signal received by the receiver in the q path, a ti It can be used to represent the amplitude factor of the transmitter in path i, a tq It can be used to represent the amplitude factor of the transmitter in the q path. It can be used to represent the phase factor of the transmitter in path i. Can be used to represent the phase factor of the transmitter in the q path, a ri Can be used to represent the amplitude factor of the receiver in path i, a rq It can be used to represent the amplitude factor of the receiver in the q path, It can be used to represent the phase factor of the receiver in path i. Can be used to represent the phase factor of the receiver in the q path, x i It can be used to indicate the signal to be sent by the transmitter in path i, x q It can be used to indicate the signal to be sent by the transmitter in the q path.

[0053] As an optional implementation method, step S104, inputting the target relationship information and the first target RF signal into the target model for demodulation to obtain the second target RF signal transmitted by the receiver in the I path and the Q path respectively, includes: determining the target parameters in the target relationship information; inputting the target parameters and the first target RF signal into the target model for demodulation to obtain the second target RF signal.

[0054] In this embodiment, the target parameter may be used to represent at least one element in the correlation matrix. For example, the target parameter may be a parameter value when the error vector magnitude (EVM) is the smallest.

[0055] In this embodiment, after determining the target relationship information between the first original parameter and the second original parameter, the target parameter in the target relationship information is determined; the target parameter and the first target radio frequency signal are input into the target model for demodulation to obtain the second target radio frequency signal. Optionally, this embodiment can determine the target parameter from each initial parameter in the target relationship information, input the determined target parameter and the first target radio frequency signal into the target model for demodulation, and obtain the second target radio frequency signal transmitted by the receiver in the I path and the Q path respectively. For example, the radio frequency signal transmitted by the receiver in the I path and the radio frequency signal transmitted by the receiver in the Q path can be obtained. Since the target parameter and the first target radio frequency signal are demodulated using the target model to obtain the second target radio frequency signal transmitted by the receiver in the I path and the Q path respectively, the technical effect of improving the accuracy of the received signal obtained by the receiver is achieved, which is only used as an example here and is not specifically limited.

[0056] Optionally, the above target relationship information can be realized by the following formula (2):

[0057]

[0058] Among them, a 11 、a 12 and a 22 It can be used to express the amplitude parameter value that comprehensively considers the sin function and cos function.

[0059] As an optional implementation method, determining the target parameters in the target relationship information includes: determining the expected value of the association matrix; according to the expected value, determining the position information corresponding to the initial parameters in the target relationship information as the initial position information in the target gradient descent model; and determining the target parameters based on the initial position information.

[0060] In this embodiment, the initial parameter can be used to represent at least one initial element in the association matrix. The target gradient descent model can be obtained by training the original gradient descent model based on at least the initial position information sample and the target parameter sample. The initial position information sample can be the historical position information that satisfies the original gradient descent model, and the target parameter sample can be the historical parameter sample that satisfies the original gradient descent model.

[0061] In this embodiment, the original gradient descent model may be constructed based on a gradient descent algorithm.

[0062] In this embodiment, after determining the target relationship information between the first original parameter and the second original parameter, the expected value of the association matrix is ​​determined; according to the expected value, the position information corresponding to the initial parameter in the target relationship information is determined as the initial position information in the target gradient descent model; based on the initial position information, the target parameter is determined. Optionally, in this embodiment, based on the determination of the expected value of the association matrix, the position information corresponding to the initial parameter in the target relationship information is determined as the initial position information in the target gradient descent model according to the size of the determined expected value, and the determined initial position information is convexly optimized to obtain the target parameter in the target model. Since the target parameter is obtained by convexly optimizing the initial position information in the target gradient descent model, the technical effect of improving the accuracy of the parameter is achieved.

[0063] As an optional implementation manner, determining the target parameter based on the initial position information includes: determining at least one first target parameter that meets the expected value; and determining the target parameter based on the initial position information and the at least one first target parameter.

[0064] In this embodiment, the first target parameter can be used to represent the descent slope of the target gradient descent model. For example, the first target parameter can be represented by the descent slope f′(x k ) is used here for illustration only and is not a specific limitation.

[0065] In this embodiment, after determining the position information corresponding to the initial parameter in the target relationship information as the initial position information in the target gradient descent model according to the expected value, at least one first target parameter that meets the expected value is determined, wherein the first target parameter is used to represent the descent slope of the target gradient descent model; the target parameter is determined based on the initial position information and the at least one first target parameter. Optionally, this embodiment can determine at least one first target parameter that meets the above expected value based on the determination of the expected value of the association matrix, and according to the initial position information x in the target gradient descent model k , learning rate α and descending slope f′(x k), the target parameters in the target model can be determined. Since the above target parameters need to be determined based on the initial position information, the learning rate and the descent slope, the technical effect of improving the accuracy of the parameters is achieved.

[0066] Optionally, the above target gradient descent model can be implemented by the following formula (3):

[0067] x k+1 =x k -αf′(x k )(3)

[0068] Among them, x k+1 It can be used to represent the next position of the initial position in the target gradient descent model.

[0069] As an optional implementation method, the target parameter is determined based on the initial position information and at least one first target parameter, including: in response to the expected value being the target expected value, obtaining at least one second target parameter that meets the target expected value; adjusting at least one first target parameter to at least one second target parameter; determining the target parameter based on the initial position information and at least one second target parameter.

[0070] In this embodiment, the second target parameter may be used to represent a target descent slope of a target gradient descent model that satisfies a target expected value.

[0071] In this embodiment, after determining at least one first target parameter that meets the expected value, in response to the expected value being the target expected value, obtaining at least one second target parameter that meets the target expected value; adjusting the at least one first target parameter to at least one second target parameter; and determining the target parameter based on the initial position information and the at least one second target parameter. Optionally, this embodiment makes a judgment based on the relationship between the expected value of the association matrix determined above and the target expected value. If it is determined that the expected value of the association matrix is ​​the target expected value, then obtaining at least one second target parameter that meets the target expected value. Then adjusting the at least one first target parameter that meets the above expected value to at least one second target parameter, and determining the target parameter based on the initial position information x in the target gradient descent model. k The target parameters in the target model can be determined by combining the above second target parameters. Since the above target parameters need to be determined based on the initial position information and the second target parameters in the target gradient descent model, the technical effect of improving the accuracy of the parameters is achieved.

[0072] Optionally, if it is determined that the expected value of the association matrix is ​​not the target expected value, there is no need to use the initial position information x in the target gradient descent model. kand the above second target parameter, determine the target parameter, continue convex optimization until the expected value of the association matrix is ​​determined to be the target expected value, and then according to the initial position information x in the target gradient descent model k and the above-mentioned second target parameter, determine the target parameter.

[0073] As an optional implementation method, the target parameters are determined based on the initial position information and at least one second target parameter, including: determining the convergence rate of the target gradient descent model; according to the convergence rate, inputting the initial position information and at least one second target parameter into the target gradient descent model for gradient descent processing to obtain the target parameters.

[0074] In this embodiment, the above convergence speed can be represented by a learning rate α.

[0075] In this embodiment, after adjusting at least one first target parameter to at least one second target parameter, the convergence speed of the target gradient descent model is determined; according to the convergence speed, the initial position information and at least one second target parameter are input into the target gradient descent model for gradient descent processing to obtain the target parameter. Optionally, this embodiment can determine the learning rate α of the target gradient descent model, and according to the determined learning rate α, the initial position information and the second target parameter are input into the target gradient descent model for gradient descent processing to obtain the target parameter in the target model. That is, by adjusting the initial position information x k , learning rate α and slope f′(x k ), input into the target gradient descent model for gradient descent calculation, and the target parameters in the target model can be obtained. Since the above target parameters need to be determined according to the initial position information and the second target parameters in the target gradient descent model, the technical effect of improving the accuracy of obtaining parameters is achieved.

[0076] As an optional implementation method, step S102, extracting the first original parameters corresponding to the transmitter in the I path and the Q path respectively, and the second original parameters corresponding to the receiver in the I path and the Q path respectively, from the baseband signal, including: calibrating the baseband signal; extracting the first original parameter and the second original parameter from the calibrated baseband signal.

[0077] In this embodiment, after determining the baseband signal corresponding to the first target RF signal in response to the first target RF signal from the transmitter, the baseband signal is calibrated; and the first original parameter and the second original parameter are extracted from the calibrated baseband signal. Optionally, on the basis of determining the baseband signal corresponding to the first target RF signal, the embodiment calibrates the baseband signal and extracts parameters from the calibrated baseband signal, thereby obtaining the first original parameters corresponding to the transmitter in the I-path and Q-path, respectively, and the second original parameters corresponding to the receiver in the I-path and Q-path, respectively. For example, the amplitude parameters and phase parameters corresponding to the transmitter in the I-path and Q-path, respectively, and the amplitude parameters and phase parameters corresponding to the receiver in the I-path and Q-path, respectively, can be obtained. Since the above-mentioned first original parameter and the above-mentioned second original parameter are extracted from the calibrated baseband signal, the technical effect of improving the accuracy of obtaining the original parameters is achieved.

[0078] According to an embodiment of the present invention, a signal transmission method of a transmitter is provided. FIG. 1( b ) is a flow chart of a signal transmission method of a transmitter according to an embodiment of the present invention. As shown in FIG. 1( b ), the method may include the following steps:

[0079] Step S111, obtaining an original radio frequency signal.

[0080] In the technical solution provided in the above step S111 of the present invention, the transmitter can obtain the original radio frequency signal with modulation.

[0081] Step S112, modulate the original RF signal to obtain a first target RF signal, wherein the target relationship information between the first target RF signal and the first original parameter and the second original parameter is input into the target model for demodulation, and the second target RF signal transmitted by the receiver in the I path and the Q path respectively is obtained, the target relationship information is used to represent the relationship between the first original parameter and the second original parameter arranged according to the matrix structure, the target model is used to represent the mapping relationship between the first target RF signal and the second target RF signal, the first original parameter and the second original parameter are extracted from the baseband signal corresponding to the first target RF signal, the first original parameter is used to represent the amplitude parameter and phase parameter of the transmitter in the I path and the Q path respectively, and the second original parameter is used to represent the amplitude parameter and phase parameter of the receiver in the I path and the Q path respectively.

[0082] In the technical solution provided in the above step S112 of the present invention, after the original radio frequency signal is acquired, the acquired original radio frequency signal is modulated to obtain the first target radio frequency signal.

[0083] Step S113: sending a first target radio frequency signal to a receiver.

[0084] In the technical solution provided in the above step S113 of the present invention, after the original RF signal is modulated to obtain the first target RF signal, when the transmitter sends the first target RF signal to the receiver, the purpose of obtaining the second target RF signal transmitted by the receiver in the I path and the Q path respectively can be achieved.

[0085] In the embodiment of the present invention, when determining the signal of the receiver, in response to the first target radio frequency signal from the transmitter, a baseband signal corresponding to the first target radio frequency signal can be determined, and then from the determined baseband signal, the first original parameter corresponding to the transmitter in the I path and the Q path, and the second original parameter corresponding to the receiver in the I path and the Q path, can be extracted. That is, the embodiment of the present invention can obtain the amplitude parameter and phase parameter corresponding to the transmitter in the I path and the Q path, and the amplitude parameter and phase parameter corresponding to the receiver in the I path and the Q path, respectively, and then determine the target relationship information between the obtained first original parameter and the second original parameter, and input the determined target relationship information and the first target radio frequency signal into the target model for demodulation, and the second target radio frequency signal transmitted by the receiver in the I path and the Q path, respectively, can be obtained, thereby achieving the purpose of ensuring the accuracy of the estimation of the amplitude and phase, solving the technical problem that the carriers of the I path and the Q path have errors in amplitude and phase, and achieving the technical effect of avoiding the carriers of the I path and the Q path from having errors in amplitude and phase.

[0086] The technical solution of the embodiment of the present invention is illustrated below in conjunction with preferred implementation modes.

[0087] In the process of estimating the amplitude and phase of the transmitter and the receiver, due to the nonlinearity of the device, the carriers of the I and Q paths may have amplitude and phase errors, which may cause IQ mismatch in the transmitter and the receiver, resulting in the technical problem that the carriers of the I and Q paths may have amplitude and phase errors.

[0088] For example, Figure 2 is a schematic diagram of a communication system model of IQ modulation and demodulation according to the related art, such as Figure 2 As shown, the communication system model may include: a transmitting end 201 and a receiving end 202, wherein the transmitting end 201 may have an IQ imbalance. At the same time, since the receiving end 202 may also have an IQ imbalance, there is a technical problem that the carriers of the I path and the Q path have amplitude and phase errors.

[0089] In order to solve the above technical problems, an embodiment of the present invention proposes a signal determination method for a receiving device, which uses the amplitude and phase of the transmitter and receiver carriers to perform mathematical modeling, and simplifies the in-phase quadrature (IQ) unbalanced matrix, thereby determining the received signal obtained by the receiver, thereby achieving the purpose of ensuring the accuracy of amplitude and phase estimation, solving the technical problem of amplitude and phase errors in both I-path and Q-path carriers, and achieving the technical effect of avoiding amplitude and phase errors in both I-path and Q-path carriers.

[0090] In the method proposed in the embodiment of the present invention, after the receiver receives the RF signal, it is sampled by a low noise amplifier, down-converted and analog-to-digital converter (ADC) to obtain a baseband signal. Before performing IQ amplitude imbalance, some preprocessing is performed, such as time synchronization, DC offset calibration, frequency offset calibration and other operations.

[0091] In this embodiment, considering that the low-pass filter will filter out the double frequency component, the received signal y after IQ demodulation can be derived i ,y q The expression is shown in formula (1). ti 、a tq 、a ri 、a rq , All of them are Gaussian white noise, so further simplifying formula (1) can get formula (2), where the average value of the above 2×2 matrix is ​​the unit frame, μ(a 11 )=μ(a 22 )=1,μ(a 12 )=μ(a 21 )=0.

[0092] In this embodiment, the number of unknown variables is reduced from 8 to 4, and the complex trigonometric function matrix is ​​changed to a matrix of a single variable, which is called an IQ matrix. Since the mathematical expectation of the IQ matrix is ​​known, the corresponding EVM is calculated by traversing the possible values ​​of each element in the matrix, thereby determining the IQ matrix with the minimum EVM. In order to shorten the calculation time, the signal received by the receiving end in the corresponding branch is calculated by a convex optimization method.

[0093] In this embodiment, the convex optimization method may include the following steps:

[0094] Step 1: Determine the value range of each element of the IQ matrix according to the baseband signal of the existing model.

[0095] Step 2: Keep a 12 ,a 21,a 22 unchanged, a 11 You can take 0.95, 1, and 1.05 respectively, and then get the corresponding EVM through channel estimation and channel equalization.

[0096] In the technical solution provided in the above step 2 of the present invention, after determining the value range of each element of the IQ matrix according to the baseband signal of the existing model, enter step 2 and convert the a corresponding to the minimum EVM value into 11 , as the initial position for the subsequent gradient descent method.

[0097] Step 3: Calculate the EVM slope f′(x k ), and according to formula (3), calculate the next position x k+1 .

[0098] According to formula (3), the next position x is calculated k+1 After that, enter step 4, step 5 and step 6. When there is a left-right jump or the EVM is larger than the previous value, the learning rate α is reduced. At the same time, in order to control the accuracy of the algorithm, when the step is less than the preset minimum value, the step is set to the preset minimum value. After repeated iterations, the EVM can reach the trough, thereby obtaining the a when the EVM is the minimum value. 11 '.For example, Figure 3 is a schematic diagram of an EVM effect after repeated iterations according to an embodiment of the present invention, such as Figure 3 As shown, in the interval [1.01, 1.015], EVM can reach the trough.

[0099] When the EVM minimum is obtained, 11 'After that, go to step 7 and convert the value a obtained by the above convex optimization 11 'Substitute back into the IQ matrix, and then perform the above convex optimization operation on other elements in the IQ matrix, thereby obtaining the optimal solution for each element.

[0100] In this embodiment, the value range of each element of the IQ matrix is ​​determined according to the baseband signal of the existing model, and a is maintained. 12 ,a 21 ,a 22 No change, give a 11 Take the value and set the a corresponding to the minimum EVM value 11 , as the initial position of the subsequent gradient descent method, at the above initial position, calculate the EVM slope f′(x k), and according to formula (3), calculate the next position, and when there is a left-right jump or the EVM is larger than the previous value, reduce the learning rate. At the same time, in order to control the accuracy of the algorithm, when the step is less than the preset minimum value, set the step to the preset minimum value, and after repeated iterations, the EVM can reach the trough, thereby obtaining the a when the EVM is the minimum value 11 ', thereby achieving the purpose of ensuring the accuracy of amplitude and phase estimation, solving the technical problem that both the I-channel and Q-channel carriers have amplitude and phase errors, and achieving the technical effect of avoiding amplitude and phase errors in both the I-channel and Q-channel carriers.

[0101] According to an embodiment of the present invention, a signal determination device of a receiver is also provided. It should be noted that the signal determination device of the receiver can be used to execute a signal determination method of a receiver in the embodiment.

[0102] FIG4(a) is a schematic diagram of a signal determination device of a receiver according to an embodiment of the present invention. As shown in FIG4(a), the signal determination device 400 of the receiver may include: a first determination unit 401, an extraction unit 402, a second determination unit 403 and a demodulation unit 404.

[0103] The first determining unit 401 is configured to determine a baseband signal corresponding to a first target RF signal in response to a first target RF signal from a transmitter, wherein the first target RF signal is obtained by modulating an original RF signal to be modulated by the transmitter.

[0104] The extraction unit 402 is used to extract the first original parameters corresponding to the transmitter in the I path and the Q path respectively, and the second original parameters corresponding to the receiver in the I path and the Q path respectively, from the baseband signal, wherein the I path and the Q path are orthogonal to each other, the I path is used to transmit the real part of the baseband signal, and the Q path is used to transmit the imaginary part of the baseband signal. The first original parameters are used to represent the amplitude parameters and phase parameters corresponding to the transmitter in the I path and the Q path respectively, and the second original parameters are used to represent the amplitude parameters and phase parameters corresponding to the receiver in the I path and the Q path respectively.

[0105] The second determining unit 403 is used to determine target relationship information between the first original parameter and the second original parameter, wherein the target relationship information is used to represent the relationship between the first original parameter and the second original parameter arranged in a matrix structure.

[0106] The demodulation unit 404 is used to input the target relationship information and the first target RF signal into the target model for demodulation to obtain the second target RF signal transmitted by the receiver in the I path and the Q path respectively, wherein the target model is used to represent the mapping relationship between the first target RF signal and the second target RF signal.

[0107] Optionally, the second determination unit 403 may include: a first determination module, used to determine the association matrix between the first original parameter and the second original parameter; a dimensionality reduction module, used to perform dimensionality reduction processing on the association matrix; and a second determination module, used to determine the association matrix after dimensionality reduction processing as target relationship information.

[0108] Optionally, the demodulation unit 404 may include: a third determination module, used to determine the target parameters in the target relationship information, wherein the target parameters are used to represent at least one element in the association matrix; a demodulation module, used to input the target parameters and the first target RF signal into the target model for demodulation to obtain a second target RF signal.

[0109] Optionally, the third determination module may include: a first determination submodule, used to determine the expected value of the association matrix; a second determination submodule, used to determine the position information corresponding to the initial parameters in the target relationship information as the initial position information in the target gradient descent model according to the expected value, wherein the initial parameters are used to represent at least one initial element in the association matrix, and the target gradient descent model is obtained by training the original gradient descent model based on at least the initial position information samples and the target parameter samples, wherein the initial position information samples are historical position information that satisfies the original gradient descent model, and the target parameter samples are historical parameter samples that satisfy the original gradient descent model; the third determination submodule is used to determine the target parameters based on the initial position information.

[0110] Optionally, the third determination submodule can determine the target parameter based on the initial position information by performing the following steps: determining at least one first target parameter that meets the expected value, wherein the first target parameter is used to represent the descent slope of the target gradient descent model; determining the target parameter based on the initial position information and at least one first target parameter.

[0111] Optionally, the third determination submodule can determine the target parameter based on the initial position information and at least one first target parameter by performing the following steps: in response to the expected value being the target expected value, obtaining at least one second target parameter that meets the target expected value, wherein the second target parameter is used to represent the target descent slope of the target gradient descent model that meets the target expected value; adjusting at least one first target parameter to at least one second target parameter; determining the target parameter based on the initial position information and at least one second target parameter.

[0112] Optionally, the third determination submodule can determine the target parameter based on the initial position information and at least one second target parameter by performing the following steps: determining the convergence rate of the target gradient descent model; according to the convergence rate, inputting the initial position information and at least one second target parameter into the target gradient descent model for gradient descent processing to obtain the target parameter.

[0113] Optionally, the extraction unit 402 may include: a calibration module, configured to calibrate the baseband signal; and an extraction module, configured to extract the first original parameter and the second original parameter from the calibrated baseband signal.

[0114] In this embodiment, the first determination unit is used to determine a baseband signal corresponding to the first target RF signal in response to a first target RF signal from a transmitter, wherein the first target RF signal is obtained by modulating the original RF signal to be modulated by the transmitter; the extraction unit is used to extract, from the baseband signal, first original parameters corresponding to the transmitter in the I path and the Q path, respectively, and second original parameters corresponding to the receiver in the I path and the Q path, respectively, wherein the I path and the Q path are orthogonal to each other, the I path is used to transmit the real part of the baseband signal, and the Q path is used to transmit the imaginary part of the baseband signal, the first original parameters are used to represent the amplitude parameters and phase parameters corresponding to the transmitter in the I path and the Q path, respectively, and the second original parameters are used to represent the amplitude parameters and phase parameters corresponding to the receiver in the I path and the Q path, respectively. ; A second determination unit is used to determine the target relationship information between the first original parameter and the second original parameter, wherein the target relationship information is used to indicate the relationship between the first original parameter and the second original parameter arranged in a matrix structure; a demodulation unit is used to input the target relationship information and the first target RF signal into the target model for demodulation, and obtain the second target RF signal transmitted by the receiver in the I path and the Q path respectively, wherein the target model is used to indicate the mapping relationship between the first target RF signal and the second target RF signal, thereby achieving the purpose of ensuring the accuracy of the estimation of the amplitude and the phase, solving the technical problem that the carriers of the I path and the Q path have errors in amplitude and phase, and realizing the technical effect of avoiding the carriers of the I path and the Q path from having errors in amplitude and phase.

[0115] According to an embodiment of the present invention, a signal sending device of a transmitter is also provided. It should be noted that the signal sending device of the transmitter can be used to execute a signal sending method of the transmitter in the embodiment.

[0116] FIG4( b ) is a schematic diagram of a signal sending device of a transmitter according to an embodiment of the present invention. As shown in FIG4( b ), the signal sending device 410 of the transmitter may include: an acquisition unit 411 , a modulation unit 412 , and a sending unit 413 .

[0117] The acquisition unit 411 is configured to acquire an original radio frequency signal.

[0118] The modulation unit 412 is used to modulate the original RF signal to obtain a first target RF signal, wherein the target relationship information between the first target RF signal and the first original parameter and the second original parameter is input into the target model for demodulation to obtain the second target RF signal transmitted by the receiver in the I path and the Q path respectively, the I path and the Q path are orthogonal to each other, the I path is used to transmit the real part of the baseband signal, and the Q path is used to transmit the imaginary part of the baseband signal, the target relationship information is used to represent the relationship between the first original parameter and the second original parameter arranged in a matrix structure, the target model is used to represent the mapping relationship between the first target RF signal and the second target RF signal, the first original parameter and the second original parameter are extracted from the baseband signal corresponding to the first target RF signal, the first original parameter is used to represent the amplitude parameter and phase parameter of the transmitter in the I path and the Q path respectively, and the second original parameter is used to represent the amplitude parameter and phase parameter of the receiver in the I path and the Q path respectively.

[0119] The sending unit 413 is configured to send a first target radio frequency signal to a receiver.

[0120] According to an embodiment of the present invention, a computer-readable storage medium is further provided. The storage medium includes a stored program, wherein the program executes the method in the embodiment.

[0121] According to an embodiment of the present invention, a processor is further provided. The processor is used to run a program, wherein the program executes the method in the embodiment when the program is run by the processor.

[0122] According to an embodiment of the present invention, a computer program product is further provided. The computer program product includes a computer program. When the computer program is executed by a processor, the method in the embodiment of the present invention is implemented.

[0123] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0124] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0125] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0126] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0127] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0128] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0129] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A signal determination method for a receiver, characterized in that: include: In response to a first target radio frequency signal from a transmitter, determining a baseband signal corresponding to the first target radio frequency signal, wherein the first target radio frequency signal is obtained by modulating an original radio frequency signal to be modulated by the transmitter; Extracting, from the baseband signal, first original parameters corresponding to the transmitter in the I-path and the I-path, respectively, and second original parameters corresponding to the receiver in the I-path and the Q-path, respectively, wherein the I-path and the Q-path are orthogonal to each other, the I-path is used to transmit the real part of the baseband signal, the Q-path is used to transmit the imaginary part of the baseband signal, the first original parameters are used to represent the amplitude parameters and phase parameters corresponding to the transmitter in the I-path and the Q-path, respectively, and the second original parameters are used to represent the amplitude parameters and phase parameters corresponding to the receiver in the I-path and the Q-path, respectively; Determining target relationship information between the first original parameter and the second original parameter, wherein the target relationship information is used to represent a relationship between the first original parameter and the second original parameter arranged in a matrix structure; The target relationship information and the first target RF signal are input into a target model for demodulation to obtain a second target RF signal transmitted by the receiver in the I path and the Q path respectively, wherein the target model is used to represent a mapping relationship between the first target RF signal and the second target RF signal.

2. The method according to claim 1, characterized in that Determining target relationship information between the first original parameter and the second original parameter includes: Determine a correlation matrix between the first original parameter and the second original parameter; perform dimensionality reduction processing on the correlation matrix; The association matrix after dimensionality reduction processing is determined as the target relationship information.

3. The method according to claim 2, characterized in that Inputting the target relationship information and the first target radio frequency signal into a target model for demodulation to obtain a second target radio frequency signal transmitted by the receiver in the I path and the Q path, comprising: Determining a target parameter in the target relationship information, wherein the target parameter is used to represent at least one element in the association matrix; The target parameters and the first target radio frequency signal are input into the target model for demodulation to obtain the second target radio frequency signal.

4. The method according to claim 3, characterized in that Determining the target parameters in the target relationship information includes: determining an expected value of the incidence matrix; According to the expected value, the position information corresponding to the initial parameter in the target relationship information is determined as the initial position information in the target gradient descent model, wherein the initial parameter is used to represent at least one initial element in the association matrix, and the target gradient descent model is obtained by training the original gradient descent model based on at least the initial position information sample and the target parameter sample, wherein the initial position information sample is the historical position information that satisfies the original gradient descent model, and the target parameter sample is the historical parameter sample that satisfies the original gradient descent model; Based on the initial position information, the target parameter is determined.

5. The method according to claim 4, characterized in that Determining the target parameter based on the initial position information includes: Determine at least one first target parameter that satisfies the expected value, wherein the first target parameter is used to represent a descent slope of the target gradient descent model; The target parameter is determined based on the initial position information and the at least one first target parameter.

6. The method according to claim 5, characterized in that Determining the target parameter based on the initial position information and the at least one first target parameter includes: In response to the expected value being a target expected value, obtaining at least one second target parameter that satisfies the target expected value, wherein the second target parameter is used to represent a target descent slope of the target gradient descent model that satisfies the target expected value; Adjusting the at least one first target parameter to the at least one second target parameter; The target parameter is determined based on the initial position information and the at least one second target parameter.

7. The method according to claim 6, characterized in that Determining the target parameter based on the initial position information and the at least one second target parameter includes: Determining a convergence rate of the target gradient descent model; According to the convergence speed, the initial position information and the second target parameter are input into the target gradient descent model for gradient descent processing to obtain the target parameter.

8. The method according to any one of claims 1 to 7, characterized in that Extracting, from the baseband signal, first original parameters of the transmitter corresponding to the I path and the Q path, and second original parameters of the receiver corresponding to the I path and the Q path, respectively, comprising: calibrating the baseband signal; The first original parameter and the second original parameter are extracted from the calibrated baseband signal.

9. A signal sending method of a transmitter, characterized in that: include: Obtaining the original RF signal; Modulating the original radio frequency signal to obtain a first target radio frequency signal, wherein target relationship information between the first target radio frequency signal and the first original parameter and the second original parameter are input into a target model for demodulation, and obtaining a second target radio frequency signal transmitted by the receiver in an I path and a Q path respectively, the I path and the Q path are orthogonal to each other, the I path is used to transmit the real part of the baseband signal, and the Q path is used to transmit the imaginary part of the baseband signal, the target relationship information is used to represent the relationship between the first original parameter and the second original parameter arranged in a matrix structure, the target model is used to represent the mapping relationship between the first target radio frequency signal and the second target radio frequency signal, the first original parameter and the second original parameter are extracted from a baseband signal corresponding to the first target radio frequency signal, the first original parameter is used to represent the amplitude parameter and the phase parameter of the transmitter in the I path and the Q path respectively, and the second original parameter is used to represent the amplitude parameter and the phase parameter of the receiver in the I path and the Q path respectively; The first target radio frequency signal is sent to a receiver.

10. A signal determination device for a receiver, characterized in that: include: A first determining unit, configured to determine, in response to a first target radio frequency signal from a transmitter, a baseband signal corresponding to the first target radio frequency signal, wherein the first target radio frequency signal is obtained by modulating an original radio frequency signal to be modulated by the transmitter; An extraction unit is used to extract, from the baseband signal, first original parameters corresponding to the transmitter in the I path and the Q path, respectively, and second original parameters corresponding to the receiver in the I path and the Q path, respectively, wherein the I path and the Q path are orthogonal to each other, the I path is used to transmit the real part of the baseband signal, and the Q path is used to transmit the imaginary part of the baseband signal, the first original parameters are used to represent the amplitude parameters and phase parameters corresponding to the transmitter in the I path and the Q path, respectively, and the second original parameters are used to represent the amplitude parameters and phase parameters corresponding to the receiver in the I path and the Q path, respectively; a second determining unit, configured to determine target relationship information between the first original parameter and the second original parameter, wherein the target relationship information is used to represent a relationship between the first original parameter and the second original parameter arranged in a matrix structure; A demodulation unit is used to input the target relationship information and the first target RF signal into a target model for demodulation to obtain a second target RF signal transmitted by the receiver in the I path and the Q path respectively, wherein the target model is used to represent a mapping relationship between the first target RF signal and the second target RF signal.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method according to any one of claims 1 to 9.

12. A processor, characterized in that: The processor is used to run a program, wherein the program executes the method according to any one of claims 1 to 9 when run by the processor.

13. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 9 is implemented.

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