Signal compensation method, device, equipment, medium and product

Abstract

The invention provides a signal compensation method, device and equipment, a medium and a product, and the method comprises the steps: constructing a three-dimensional rectangular coordinate system with a passive signal transmitter as an original point, and constructing a spatial tetrahedron in the three-dimensional rectangular coordinate system; determining a directional diagram function of a scattering projection signal of a transmission signal of the passive signal transmitter on the spatial tetrahedron, the directional diagram function including a phase directional diagram function and an amplitude directional diagram function; calculating an electric field amplitude function according to the amplitude pattern function, and evaluating the signal intensity received by the target receiver through the electric field amplitude function; and compensating the signal intensity of the emission signal of the passive signal emitter through a pattern multiplication principle according to the pattern function of the scattering projection signal of the emission signal. According to the invention, the space angles of the signal transmitting and receiving equipment are optimized, interference and attenuation caused by signal reflection are reduced to the greatest extent, and signals are compensated in an environment backscatter communication system.

Description

Technical Field

[0001] The present invention relates to the field of signal compensation technology, and in particular to a signal compensation method, apparatus, device, medium and product. Background Technology

[0002] Currently, as technology advances into the era of the Internet of Things (IoT), the power supply, battery life, and signal reception capabilities of passive IoT devices are becoming new challenges. Reducing the power consumption of terminal nodes and improving energy harvesting for signal reception have always been core research directions in the IoT. Researchers have developed a method of pairing a receiver with a terahertz beam-controlled array to precisely guide terahertz signals. This method allows signals to be transmitted to multiple chips with minimal signal loss. In this scheme, the terahertz signal needs to directly hit the detector; if the chip is at an angle, some signal will be lost. However, in practical applications, signal acquisition is sensitive to the device's placement angle, which can lead to failures in acquiring device information in some real-world scenarios, resulting in low inventory efficiency and high inventory management costs, thus limiting the widespread adoption of passive IoT. Summary of the Invention

[0003] This invention provides a signal compensation method, apparatus, device, medium, and product to solve the problem that existing chips lose some signals when tilted, resulting in low inventory efficiency.

[0004] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0005] In a first aspect, embodiments of the present invention provide a signal compensation method, comprising:

[0006] A three-dimensional rectangular coordinate system is constructed with the passive signal transmitter as the origin, and a spatial tetrahedron is constructed in the three-dimensional rectangular coordinate system;

[0007] Determine the pattern function of the scattering projection signal of at least one transmitted signal from the passive signal transmitter on the spatial tetrahedron, wherein the pattern function includes: a phase pattern function and an amplitude pattern function, the phase pattern function representing the phase of the transmitted signal and the scattering projection signal, and the amplitude pattern function representing the variation of the radiation intensity of the transmitted signal and the scattering projection signal with spatial direction;

[0008] The electric field amplitude function is calculated based on the amplitude pattern function, and the signal strength received by the target receiver is evaluated using the electric field amplitude function.

[0009] Based on the radiation pattern function of the scattering projection signal of the transmitted signal, the signal strength of the transmitted signal of the passive signal transmitter is compensated by the radiation pattern multiplication principle.

[0010] Optionally, after compensating the signal strength of the passive signal transmitter's transmitted signal using the pattern multiplication principle, the method further includes:

[0011] Based on the coordinates of the target receiver and the scattering projection signal of the transmitted signal, the target offset angle between the passive signal transmitter with the largest phase value after spatial scattering and the target receiver is determined, and it is determined whether the target offset angle exceeds a preset deviation value.

[0012] If the target offset angle exceeds a preset deviation value, the target offset angle is corrected.

[0013] Optionally, based on the coordinates of the target receiver and the pattern function of the scattered projection signal of the transmitted signal, the target offset angle between the passive signal transmitter with the largest phase value after spatial scattering and the target receiver is determined, including:

[0014] Substitute the coordinates of the target receiver and the coordinates of the trajectory of the three-dimensional point of the transmitted signal into the phase pattern function to calculate the offset angle between the passive signal transmitter and the target receiver after the transmitted signal is spatially scattered.

[0015] The offset angle is normalized.

[0016] The offset angle with the largest phase value among the normalized offset angles is determined as the target offset angle between the passive signal transmitter and the target receiver.

[0017] Optionally, calculating the electric field amplitude function based on the amplitude pattern function includes:

[0018] The electric field amplitude function is determined by multiplying the amplitude pattern function of a single transmitted signal from the passive signal transmitter with the amplitude pattern function of the transmitted signals in each direction from the passive signal transmitter.

[0019] Optionally, determining the coordinates of the target receiver and the pattern function of at least one scattering projection signal of the transmitted signal on the spatial tetrahedron includes:

[0020] The trajectory of the three-dimensional points of the scattering projection signal of the transmitted signal in the three-dimensional rectangular coordinate system is mapped onto the spherical coordinate system to obtain the radiation pattern function of the scattering projection signal of the transmitted signal.

[0021] Optional, also includes:

[0022] Obtain the target offset angle between the passive signal transmitters and the target receiver;

[0023] By using resource and wireless resource management algorithms, passive signal transmitters with similar target offset angles are allocated to different time slots, and time slots with interference signals less than a preset interference threshold are preferentially allocated for the transmission of the passive signal transmitter's transmission signal.

[0024] Secondly, embodiments of the present invention provide a signal compensation device, comprising:

[0025] The first processing module is used to construct a three-dimensional rectangular coordinate system with the passive signal transmitter as the origin, and to construct a spatial tetrahedron in the three-dimensional rectangular coordinate system.

[0026] The second processing module is used to determine the pattern function of the scattering projection signal of at least one transmitted signal from the passive signal transmitter on the spatial tetrahedron, wherein the pattern function includes a phase pattern function and an amplitude pattern function, the phase pattern function representing the phase of the transmitted signal and the scattering projection signal, and the amplitude pattern function representing the variation of the radiation intensity of the transmitted signal and the scattering projection signal with spatial direction;

[0027] The third processing module is used to calculate the electric field amplitude function based on the amplitude pattern function, and to evaluate the signal strength received by the target receiver using the electric field amplitude function.

[0028] The fourth processing module is used to compensate the signal strength of the passive signal transmitter's transmitted signal based on the pattern function of the scattered projection signal of the transmitted signal and the pattern multiplication principle.

[0029] Optional, also includes:

[0030] The fifth processing module is used to determine the target offset angle between the passive signal transmitter and the target receiver with the largest phase value after spatial scattering based on the coordinates of the target receiver and the scattering projection signal of the transmitted signal, and to determine whether the target offset angle exceeds a preset deviation value; if the target offset angle exceeds the preset deviation value, the target offset angle is corrected.

[0031] Optionally, the fifth processing module includes:

[0032] The first processing submodule is used to substitute the coordinates of the target receiver and the coordinates of the trajectory of the three-dimensional point of the transmitted signal into the phase pattern function to calculate the offset angle between the passive signal transmitter and the target receiver after the transmitted signal is spatially scattered; normalize the offset angle; and determine the offset angle with the largest phase value among the normalized offset angles as the target offset angle between the passive signal transmitter and the target receiver.

[0033] Optionally, the third processing module includes:

[0034] The second processing submodule is used to determine the electric field amplitude function based on the product of the amplitude pattern function of a single transmitted signal of the passive signal transmitter and the amplitude pattern function of the transmitted signals in each direction of the passive signal transmitter.

[0035] Optionally, the second processing module includes:

[0036] The third processing submodule is used to map the trajectory of the three-dimensional points of the scattering projection signal of the transmitted signal in the three-dimensional rectangular coordinate system to the spherical coordinate system to obtain the radiation pattern function of the scattering projection signal of the transmitted signal.

[0037] Optional, also includes:

[0038] The allocation module is used to obtain the target offset angle between multiple passive signal transmitters and the target receiver; and to allocate passive signal transmitters with similar target offset angles to different time slots through resource and wireless resource management algorithms, and to prioritize the allocation of time slots with interference signals less than a preset interference threshold for the transmission of transmission signals from the passive signal transmitters.

[0039] Thirdly, embodiments of the present invention provide an electronic device, including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the signal compensation method as described in any one of the first aspects.

[0040] Fourthly, embodiments of the present invention provide a readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the signal compensation method as described in any one of the first aspects.

[0041] Fifthly, embodiments of the present invention provide a computer program product including computer instructions that, when executed by a processor, implement the steps of the signal compensation method as described in any one of the first aspects.

[0042] In this invention, a three-dimensional rectangular coordinate system is constructed with the passive signal transmitter as the origin, and a spatial tetrahedron is constructed within the three-dimensional rectangular coordinate system. A pattern function for the scattering projection signal of at least one transmitted signal from the passive signal transmitter on the spatial tetrahedron is determined. The pattern function includes a phase pattern function and an amplitude pattern function. The phase pattern function represents the phase of the transmitted signal and the scattering projection signal, and the amplitude pattern function represents the variation of the radiation intensity of the transmitted signal and the scattering projection signal with spatial direction. An electric field amplitude function is calculated based on the amplitude pattern function, and the signal strength received by the target receiver is evaluated using the electric field amplitude function. The signal strength of the transmitted signal from the passive signal transmitter is compensated based on the pattern function of the scattering projection signal of the transmitted signal using the pattern multiplication principle. By constructing a phase pattern function and applying the pattern multiplication principle, the spatial angle of the signal transmitting and receiving equipment is optimized, minimizing interference and attenuation caused by signal reflection, and ensuring that the signal is reflected along the optimal path. This compensates for the signal in the environmental backscatter communication system, solving the problem that existing chips are at a tilt angle, resulting in the loss of some signals and low inventory efficiency. Attached Figure Description

[0043] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0044] Figure 1 This is a flowchart of a signal compensation method provided in an embodiment of the present invention;

[0045] Figure 2 This is a three-dimensional rectangular coordinate system schematic diagram of a signal compensation method provided in an embodiment of the present invention;

[0046] Figure 3 This is a three-dimensional tetrahedral schematic diagram of a signal compensation method provided in an embodiment of the present invention;

[0047] Figure 4 This is a time slot allocation diagram of a signal compensation method provided in an embodiment of the present invention;

[0048] Figure 5 This is a general flowchart of a signal compensation method provided in an embodiment of the present invention;

[0049] Figure 6 This is a schematic diagram of the structure of a signal compensation device provided in an embodiment of the present invention;

[0050] Figure 7This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Please refer to Figure 1 This invention provides a signal compensation method, comprising:

[0053] Step 11: Construct a three-dimensional rectangular coordinate system with the passive signal transmitter as the origin, and construct a spatial tetrahedron in the three-dimensional rectangular coordinate system;

[0054] In this embodiment of the invention, the spatial three-dimensional tetrahedron of the IoT device signal is first modeled, specifically:

[0055] First, a three-dimensional Cartesian coordinate system is constructed with the location of the passive signal transmitter as the origin. The spatial radiation distribution or radiation pattern of the signal is represented by the trajectory of the three-dimensional point, such as... Figure 2 As shown, by representing the total electric field of the constituent components in a spherical coordinate system, the electric field amplitude function is obtained. The larger the value of the electric field amplitude function, the greater the probability that it will be received by the receiver at the same offset angle.

[0056] ;

[0057] Among them, Q( G(x,y,z) represents the coordinates of the transmitted signal from the passive signal transmitter, G(x,y,z) represents the coordinates of the target receiver, r represents the distance from the transmitter, and θ represents the elevation angle formed by the transmitted signal and the horizontal plane (–π / 2 <θ < π / 2), with negative angles indicating that the beam is tilted downwards. The azimuth angle formed by the transmitted signal and the x-axis (0 < φ < 2π); This represents the electric field strength value obtained after mapping onto a horizontal plane. This represents the square of the electric field strength obtained after mapping perpendicular to the z-axis.

[0058] The PJW mapping is used to describe the trajectory on the cross-sectional diagram. That is, the point where the trajectory crosses the cross-section again can be considered as a mapping relationship to the point that crossed the cross-section previously. This is achieved by analyzing the intersection of the system trajectory with a specific cross-section. Specifically, for example... Figure 3As shown, by constructing a spatial tetrahedron in the three-dimensional Cartesian coordinate system to represent the scattered projection signal of the emitted signal, this layout makes the direction, distance and positional relationship of the signal propagation clear at a glance, providing a structured geometric basis for further analysis.

[0059] Step 12: Determine the pattern function of the scattering projection signal of at least one transmitted signal from the passive signal transmitter on the spatial tetrahedron, wherein the pattern function includes: a phase pattern function and an amplitude pattern function, the phase pattern function representing the phase of the transmitted signal and the scattering projection signal, and the amplitude pattern function representing the variation of the radiation intensity of the transmitted signal and the scattering projection signal with spatial direction;

[0060] In this embodiment of the invention, by constructing a spatial tetrahedron as a feature of the signal, the signal is compensated in the environmental backscatter communication system, the spatial angle of the signal transmitting and receiving devices is optimized, the interference and attenuation caused by signal reflection are reduced to the greatest extent, the signal is reflected along the optimal path, and the signal is compensated in the environmental backscatter communication system.

[0061] Specifically, the relative amplitude of the radiance pattern of the entire array is the product of the amplitude pattern function of a single transmitted signal from the passive signal transmitter and the amplitude pattern function of the transmitted signals in each direction from the passive signal transmitter. The phase pattern of the entire signal is the sum of the phase pattern of a single source and the phase pattern of the transmitted signals in each direction from the passive signal transmitter, that is:

[0062] ;

[0063] +...+ ;

[0064] in, Let be the electric field amplitude function, which is an important parameter for evaluating the performance of the receiver chip. This is the amplitude pattern function;

[0065] Assumption and Let the elevation and azimuth angles be the elevation and azimuth angles at which maximum radiation occurs, respectively. Then the phase pattern function... It can be represented as: ;

[0066] in, Let be the phase direction function of the elevation angle formed by the transmitted signal and the horizontal plane. The phase direction function is the azimuth angle formed by the transmitted signal and the horizontal plane.

[0067] In this embodiment of the invention, optionally, determining the coordinates of the target receiver and the pattern function of at least one scattering projection signal of the transmitted signal on the spatial tetrahedron includes:

[0068] The trajectory of the three-dimensional points of the scattering projection signal of the transmitted signal in the three-dimensional rectangular coordinate system is mapped onto the spherical coordinate system to obtain the radiation pattern function of the scattering projection signal of the transmitted signal.

[0069] Please refer to Figure 3 Specifically: determining the pattern function of the scattering projection signal of at least one transmitted signal from the passive signal transmitter on the spatial tetrahedron, including:

[0070] Since the beam received by the target receiver is obtained after propagation through spatial reflection, a scattering projection can be performed between the transmitted signal and the reflected beam. (The coordinates of any point on this plane are () , , First, project it onto the constructed spatial tetrahedron to obtain... (The coordinates after refraction on this plane are () , , )), Then project it onto a space tetrahedron to obtain Finally, the scattering yields ,in, With observation point They almost overlap.

[0071] Mapping the trajectory of the three-dimensional points of the scattered projection signal of the transmitted signal in the three-dimensional rectangular coordinate system onto the spherical coordinate system is as follows:

[0072] ;

[0073] ;

[0074] ;

[0075] at this time, ( ) / ( ), In a three-dimensional rectangular coordinate system, , , ,

[0076] roll out =( + + ) / ,

[0077]

[0078]

[0079] +……+ .

[0080] Step 13: Calculate the electric field amplitude function based on the amplitude pattern function, and use the electric field amplitude function to evaluate the signal strength received by the target receiver;

[0081] In this embodiment of the invention, the electric field amplitude function is calculated by the amplitude pattern function, which allows for accurate quantification of the signal propagation characteristics in space. This enables the formulation of corresponding signal compensation strategies by fully understanding the electric field amplitude.

[0082] In this embodiment of the invention, optionally, the step of calculating the electric field amplitude function based on the amplitude pattern function includes:

[0083] The electric field amplitude function is determined by multiplying the amplitude pattern function of a single transmitted signal from the passive signal transmitter with the amplitude pattern function of the transmitted signals in each direction from the passive signal transmitter.

[0084] Specifically, the relative amplitude of the radiance pattern of the entire array is the product of the amplitude pattern function of a single transmitted signal from the passive signal transmitter and the amplitude pattern function of the transmitted signals in each direction from the passive signal transmitter. The phase pattern of the entire signal is the sum of the phase pattern of a single source and the phase pattern of the transmitted signals in each direction from the passive signal transmitter, that is:

[0085] ;

[0086] +...+ ;

[0087] in, Let be the electric field amplitude function, which is an important parameter for evaluating the performance of the receiver chip. This is the amplitude pattern function.

[0088] Step 14: Based on the pattern function of the scattered projection signal of the transmitted signal, compensate the signal strength of the transmitted signal of the passive signal transmitter using the pattern multiplication principle.

[0089] In this embodiment of the invention, by analyzing and deriving the pattern function of the scattering projection signal of the transmitted signal, signal compensation is performed on the signal strength of the transmitted signal from the passive signal transmitter, thereby increasing the maximum radiation intensity that the target receiver can obtain. Specifically:

[0090] After signal strength compensation for spatial scattering reconstruction, the final converted maximum radiant intensity of the receiver is obtained as D, where D is the ratio between the maximum radiant intensity (or power flux density) and the radiant intensity of an isotropic source radiating the same total power.

[0091] /

[0092]

[0093] ))d d ;

[0094] set up When max = 1, the normalization factor k = 1, and the signal is 0 dB. When the angle between the transmitter and receiver approaches 0, cos... 1; That is, D reaches its maximum value at this time. Since D is proportional to E, it can be concluded that E is at its maximum value at this time.

[0095] In this embodiment of the invention, a three-dimensional rectangular coordinate system is constructed with the passive signal transmitter as the origin, and a spatial tetrahedron is constructed within the three-dimensional rectangular coordinate system. A pattern function for the scattering projection signal of at least one transmitted signal from the passive signal transmitter on the spatial tetrahedron is determined. The pattern function includes a phase pattern function and an amplitude pattern function. The phase pattern function represents the phase of the transmitted signal and the scattering projection signal, and the amplitude pattern function represents the variation of the radiation intensity of the transmitted signal and the scattering projection signal with spatial direction. An electric field amplitude function is calculated based on the amplitude pattern function, and the signal strength received by the target receiver is evaluated using the electric field amplitude function. The signal strength of the transmitted signal from the passive signal transmitter is compensated based on the pattern function of the scattering projection signal of the transmitted signal using the pattern multiplication principle. By constructing a phase pattern function and applying the pattern multiplication principle, the spatial angle of the signal transmitting and receiving equipment is optimized, minimizing interference and attenuation caused by signal reflection, and ensuring that the signal is reflected along the optimal path. This compensates for the signal in the environmental backscatter communication system, solving the problem that existing chips are at a tilt angle, resulting in the loss of some signals and low inventory efficiency.

[0096] In this embodiment of the invention, optionally, after compensating the signal strength of the passive signal transmitter's transmitted signal using the pattern multiplication principle, the method further includes:

[0097] Based on the coordinates of the target receiver and the scattering projection signal of the transmitted signal, the target offset angle between the passive signal transmitter with the largest phase value after spatial scattering and the target receiver is determined, and it is determined whether the target offset angle exceeds a preset deviation value.

[0098] If the target offset angle exceeds a preset deviation value, the target offset angle is corrected.

[0099] In this embodiment of the invention, by optimizing the spatial angles of the signal transmitting and receiving devices, interference and attenuation caused by signal reflection are minimized, so that the signal is reflected along the optimal path. This allows the offset angle between the receiver and transmitter after spatial scattering to be determined, and the rotation angle lost by the signal at that angle is corrected. By correcting the chip offset angle, the receiver signal reception failure caused by signal loss is reduced.

[0100] In this embodiment of the invention, optionally, determining the target offset angle between the passive signal transmitter and the target receiver, based on the coordinates of the target receiver and the pattern function of the scattering projection signal of the transmitted signal, includes:

[0101] Substitute the coordinates of the target receiver and the coordinates of the trajectory of the three-dimensional point of the transmitted signal into the phase pattern function to calculate the offset angle between the passive signal transmitter and the target receiver after the transmitted signal is spatially scattered.

[0102] The offset angle is normalized.

[0103] The offset angle with the largest phase value among the normalized offset angles is determined as the target offset angle between the passive signal transmitter and the target receiver.

[0104] Please refer to Figure 3 In this embodiment of the invention, determining the target offset angle between the passive signal transmitter with the largest phase value after spatial scattering and the target receiver specifically includes:

[0105] Let the coordinates of the target receiver be G( Substitute into the position pattern function ;

[0106] When the first scattering is obtained Substituting the bit direction pattern function again yields... And so on, recording different scattering conditions. The value is used to calculate the offset angle between the target receiver and the passive signal transmitter after spatial scattering, and then compared with the value. and The angle between them is denoted as :

[0107] = ;

[0108] Then, the offset angle is normalized using Z-score. Specifically:

[0109] ,make , will get Substituting into the above formula, multiple sets of corresponding pattern functions can be obtained. Find the maximum value corresponding The value is taken as the target offset angle between the passive signal transmitter and the target receiver, that is, the optimal value through back propagation;

[0110] And, when If the deviation exceeds the preset value, manual correction is required.

[0111] In this embodiment of the invention, optionally, it also includes:

[0112] Obtain the target offset angle between the passive signal transmitters and the target receiver;

[0113] By using resource and wireless resource management algorithms, passive signal transmitters with similar target offset angles are allocated to different time slots, and time slots with interference signals less than a preset interference threshold are preferentially allocated for the transmission of the passive signal transmitter's transmission signal.

[0114] In this embodiment of the invention, the Radio Resource Management (RRM) algorithm is used to allocate the optimal value σ for backpropagation. For details, please refer to [link / reference needed]. Figure 4 By performing discrete fitting on positive coordinates (with the target offset angle set at 15°), passive signal transmitters with similar target offset angles are allocated to different time slots using the RRM algorithm. This ensures that the system does not accept new users in already congested cells / time slots. Furthermore, by prioritizing passive signal transmitters—that is, comparing the target offset angles of users in each time slot with those of newly accessing users—time slots with interference signals less than a preset interference threshold are prioritized for transmitting signals from the passive signal transmitters during resource allocation. This dynamic allocation of spectrum resources improves the resource allocation efficiency of the passive Internet of Things.

[0115] Please refer to Figure 5 The complete process of the signal compensation method is as follows:

[0116] A passive node, i.e., a passive signal transmitter, transmits signals to a receiver, i.e., the target receiver;

[0117] Create a three-dimensional spatial model to facilitate subsequent analysis of the signal's propagation and scattering characteristics in space;

[0118] The signal is scattered in space;

[0119] The signal is amplified by the signal compensation method described above to ensure that the receiver can receive the signal smoothly.

[0120] Utilizing the RRM algorithm to optimize resource allocation improves the resource allocation efficiency of passive IoT;

[0121] Finally, the receiver receives the amplified signal, thus completing the signal transmission process.

[0122] Please refer to Figure 6 This invention provides a signal compensation device, comprising:

[0123] The first processing module 61 is used to construct a three-dimensional rectangular coordinate system with the passive signal transmitter as the origin, and to construct a spatial tetrahedron in the three-dimensional rectangular coordinate system.

[0124] The second processing module 62 is used to determine the pattern function of the scattering projection signal of at least one transmitted signal of the passive signal transmitter on the spatial tetrahedron, wherein the pattern function includes: a phase pattern function and an amplitude pattern function, the phase pattern function representing the phase of the transmitted signal and the scattering projection signal, and the amplitude pattern function representing the variation of the radiation intensity of the transmitted signal and the scattering projection signal with spatial direction;

[0125] The third processing module 63 is used to calculate the electric field amplitude function based on the amplitude pattern function, and to evaluate the signal strength received by the target receiver using the electric field amplitude function.

[0126] The fourth processing module 64 is used to compensate the signal strength of the passive signal transmitter's transmitted signal based on the pattern function of the scattered projection signal of the transmitted signal and the pattern multiplication principle.

[0127] In this embodiment of the invention, optionally, it also includes:

[0128] The fifth processing module is used to determine the target offset angle between the passive signal transmitter and the target receiver with the largest phase value after spatial scattering based on the coordinates of the target receiver and the scattering projection signal of the transmitted signal, and to determine whether the target offset angle exceeds a preset deviation value; if the target offset angle exceeds the preset deviation value, the target offset angle is corrected.

[0129] In this embodiment of the invention, optionally, the fifth processing module includes:

[0130] The first processing submodule is used to substitute the coordinates of the target receiver and the coordinates of the trajectory of the three-dimensional point of the transmitted signal into the phase pattern function to calculate the offset angle between the passive signal transmitter and the target receiver after the transmitted signal is spatially scattered; normalize the offset angle; and determine the offset angle with the largest phase value among the normalized offset angles as the target offset angle between the passive signal transmitter and the target receiver.

[0131] In this embodiment of the invention, optionally, the third processing module includes:

[0132] The second processing submodule is used to determine the electric field amplitude function based on the product of the amplitude pattern function of a single transmitted signal of the passive signal transmitter and the amplitude pattern function of the transmitted signals in each direction of the passive signal transmitter.

[0133] Optionally, the second processing module includes:

[0134] The third processing submodule is used to map the trajectory of the three-dimensional points of the scattering projection signal of the transmitted signal in the three-dimensional rectangular coordinate system to the spherical coordinate system to obtain the radiation pattern function of the scattering projection signal of the transmitted signal.

[0135] In this embodiment of the invention, optionally, it also includes:

[0136] The allocation module is used to obtain the target offset angle between multiple passive signal transmitters and the target receiver; and to allocate passive signal transmitters with similar target offset angles to different time slots through resource and wireless resource management algorithms, and to prioritize the allocation of time slots with interference signals less than a preset interference threshold for the transmission of transmission signals from the passive signal transmitters.

[0137] The signal compensation device provided in this embodiment of the invention can achieve Figure 1 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0138] This invention provides an electronic device 70, see [link to relevant documentation]. Figure 7As shown, Figure 7 This is a schematic block diagram of an electronic device 70 according to an embodiment of the present invention, including a processor 71, a memory 72, and a program or instructions stored in the memory 72 and executable on the processor 71. When the program or instructions are executed by the processor, they implement the steps in any of the signal compensation methods of the present invention.

[0139] This invention provides a readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements the various processes of the signal compensation method embodiments described above and achieves the same technical effect. To avoid repetition, further details are omitted here.

[0140] This application also provides a computer program product, including computer instructions, which, when executed by a processor, implement the above-described... Figure 1 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0141] Computer-readable media include both permanent and non-permanent, removable and non-removable media, which can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0142] It should be noted that the collection, gathering, updating, analysis, processing, use, transmission, and storage of user personal information involved in this disclosed technical solution all comply with relevant laws and regulations, are used for legitimate purposes, and do not violate public order and good morals. Necessary measures are taken to prevent unauthorized access to user personal information data and to safeguard user personal information security and network security.

[0143] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0144] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0145] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a service classification device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0146] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A signal compensation method, characterized in that, include: A three-dimensional rectangular coordinate system is constructed with the passive signal transmitter as the origin, and a spatial tetrahedron is constructed in the three-dimensional rectangular coordinate system; Determine the pattern function of the scattering projection signal of at least one transmitted signal from the passive signal transmitter on the spatial tetrahedron, wherein the pattern function includes: a phase pattern function and an amplitude pattern function, the phase pattern function representing the phase of the transmitted signal and the scattering projection signal, and the amplitude pattern function representing the variation of the radiation intensity of the transmitted signal and the scattering projection signal with spatial direction; The electric field amplitude function is calculated based on the amplitude pattern function, and the signal strength received by the target receiver is evaluated using the electric field amplitude function. Based on the radiation pattern function of the scattering projection signal of the transmitted signal, the signal strength of the transmitted signal of the passive signal transmitter is compensated by the radiation pattern multiplication principle.

2. The signal compensation method according to claim 1, characterized in that, After compensating the signal strength of the passive signal transmitter's transmitted signal using the pattern multiplication principle, the method further includes: Based on the coordinates of the target receiver and the scattering projection signal of the transmitted signal, the target offset angle between the passive signal transmitter with the largest phase value after spatial scattering and the target receiver is determined, and it is determined whether the target offset angle exceeds a preset deviation value. If the target offset angle exceeds a preset deviation value, the target offset angle is corrected.

3. The signal compensation method according to claim 2, characterized in that, Based on the coordinates of the target receiver and the radiation pattern function of the scattered projection signal of the transmitted signal, the target offset angle between the passive signal transmitter with the largest phase value after spatial scattering and the target receiver is determined, including: Substitute the coordinates of the target receiver and the coordinates of the trajectory of the three-dimensional point of the transmitted signal into the phase pattern function to calculate the offset angle between the passive signal transmitter and the target receiver after the transmitted signal is spatially scattered. The offset angle is normalized. The offset angle with the largest phase value among the normalized offset angles is determined as the target offset angle between the passive signal transmitter and the target receiver.

4. The signal compensation method according to claim 1, characterized in that, The calculation of the electric field amplitude function based on the amplitude pattern function includes: The electric field amplitude function is determined by multiplying the amplitude pattern function of a single transmitted signal from the passive signal transmitter with the amplitude pattern function of the transmitted signals in each direction from the passive signal transmitter.

5. The signal compensation method according to claim 1, characterized in that, The method for determining the coordinates of the target receiver and the pattern function for the scattering projection signal of at least one of the transmitted signals on the spatial tetrahedron includes: The trajectory of the three-dimensional points of the scattering projection signal of the transmitted signal in the three-dimensional rectangular coordinate system is mapped onto the spherical coordinate system to obtain the radiation pattern function of the scattering projection signal of the transmitted signal.

6. The signal compensation method according to claim 2, characterized in that, Also includes: Obtain the target offset angle between the passive signal transmitters and the target receiver; By using resource and wireless resource management algorithms, passive signal transmitters with similar target offset angles are allocated to different time slots, and time slots with interference signals less than a preset interference threshold are preferentially allocated for the transmission of the passive signal transmitter's transmission signal.

7. A signal compensation device, characterized in that, include: The first processing module is used to construct a three-dimensional rectangular coordinate system with the passive signal transmitter as the origin, and to construct a spatial tetrahedron in the three-dimensional rectangular coordinate system. The second processing module is used to determine the pattern function of the scattering projection signal of at least one transmitted signal from the passive signal transmitter on the spatial tetrahedron, wherein the pattern function includes a phase pattern function and an amplitude pattern function, the phase pattern function representing the phase of the transmitted signal and the scattering projection signal, and the amplitude pattern function representing the variation of the radiation intensity of the transmitted signal and the scattering projection signal with spatial direction; The third processing module is used to calculate the electric field amplitude function based on the amplitude pattern function, and to evaluate the signal strength received by the target receiver using the electric field amplitude function. The fourth processing module is used to compensate the signal strength of the passive signal transmitter's transmitted signal based on the pattern function of the scattered projection signal of the transmitted signal and the pattern multiplication principle.

8. An electronic device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the signal compensation method as described in any one of claims 1 to 6.

9. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the signal compensation method as described in any one of claims 1 to 6.

10. A computer program product, characterized in that, It includes computer instructions that, when executed by a processor, implement the steps in the signal compensation method as described in any one of claims 1 to 6.

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