Optimization Method for Wireless Transceiver System in Dynamic Scenario and Computer Device

Abstract

An optimization method for a wireless transceiver system in a dynamic scenario and a computer device are disclosed in an embodiment of the present disclosure. Among them, the method includes: constructing a three-dimensional spherical coordinate system of a transceiver antenna, and obtaining an initial polarization vector of the transceiver antenna in the three-dimensional spherical coordinate system; based on the polarization characteristics of the transceiver antenna, converting the initial polarization vector into a representation in a three-dimensional rectangular coordinate system to obtain an actual polarization vector of the transceiver antenna; when the attitude of the transceiver antenna carrier changes, updating the actual polarization vector based on the current attitude data of the transceiver antenna carrier; based on the current actual polarization vector of the transceiver antenna, obtaining a polarization loss factor between the transceiver antennas through a vector dot product algorithm; and analyzing and optimizing the link characteristics of the wireless transceiver system based on the polarization loss factor. This method can accurately quantify the polarization mismatch loss between transceiver antennas in a dynamic scenario and improve the link quality of the wireless transceiver system.

Description

Technical Field

[0001] The present disclosure relates to the field of radio technology, and in particular, to a method for analyzing and optimizing a wireless transceiver system in a dynamic scenario and a computer device. Background Art

[0002] Radio frequency transceiver technology is a core component of modern radio systems and is widely used in many fields such as wireless communication systems, radar systems, radio navigation systems, and mobile communication systems. In these fields, the performance of the wireless transceiver system link not only depends on the transmit power, the gain of the transceiver antennas, and the transmission loss of space propagation, but is also significantly affected by the polarization mismatch loss of the transceiver antennas.

[0003] Most of the existing polarization analysis methods are based on static scenarios and are difficult to accurately reflect the polarization characteristics of the transceiver antennas in dynamic scenarios. On mobile platforms such as airplanes and ships, the attitudes of the transceiver antennas change frequently, which makes the evaluation of polarization mismatch loss particularly complex. For example, multiple antennas with different functions are installed on the back and abdomen of a civil aviation aircraft, and most of them are vertical polarization knife antennas. When the aircraft takes off, climbs, and turns, the change in the body attitude has a very obvious impact on the polarization characteristics of the antennas, resulting in an increase in the polarization loss of the transceiver link, and further affecting the link performance of the wireless transceiver system. Due to the deficiencies of the existing polarization analysis methods in dynamic scenarios, the evaluation of polarization mismatch loss is inaccurate, thus affecting the reliability and stability analysis of the wireless transceiver system. Summary of the Invention

[0004] In view of this, embodiments of the present disclosure provide a method for optimizing a wireless transceiver system in a dynamic scenario and a computer device, which can accurately quantify the polarization mismatch loss between transceiver antennas in a dynamic scenario and provide an analysis method for optimizing the link quality of the wireless transceiver system.

[0005] In a first aspect, embodiments of the present disclosure provide a method for optimizing a wireless transceiver system in a dynamic scenario, adopting the following technical solution:

[0006] Construct a three-dimensional spherical coordinate system of the transceiver antennas, and obtain the initial polarization vectors of the transceiver antennas in the three-dimensional spherical coordinate system;

[0007] Based on the polarization characteristics of the transceiver antennas, convert the initial polarization vectors into representations in a three-dimensional rectangular coordinate system to obtain the actual polarization vectors of the transceiver antennas;

[0008] When the attitude of the transceiver antenna carrier changes, update the actual polarization vectors based on the current attitude data of the transceiver antenna carrier;

[0009] Based on the current actual polarization vectors of the transceiver antennas, obtain the polarization loss factor between the transceiver antennas through a vector dot product algorithm;

[0010] Optimize the link of the wireless transceiver system based on the analysis of the polarization loss factor.

[0011] Optionally, the transceiver antenna includes a transmitting antenna and a receiving antenna; obtaining the initial polarization vector of the transceiver antenna in the three-dimensional spherical coordinate system includes:

[0012] Obtain the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system and the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system;

[0013] Based on the radiation direction vector and the receiving direction vector, determine the polarization trajectory plane of the transceiver antenna;

[0014] Based on the polarization trajectory plane, obtain the initial polarization vector of the transceiver antenna.

[0015] Optionally, the radiation direction vector of the transmitting antenna is:

[0016] ; (Formula 1)

[0017] In the formula, is the radiation direction vector of the transmitting antenna; is the radial distance of the transmitting antenna in the three-dimensional spherical coordinate system; is the polar angle of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the azimuth angle of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the radial component of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the radial unit vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the latitudinal component of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the latitudinal unit vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the longitudinal component of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the longitudinal unit vector of the transmitting antenna in the three-dimensional spherical coordinate system.

[0018] Optionally, the receiving direction vector is:

[0019] ;

[0020] In the formula, is the receiving direction vector of the receiving antenna; is the radial distance of the receiving antenna in the three-dimensional spherical coordinate system; is the polar angle of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the azimuth angle of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the radial component of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the radial unit vector in the three-dimensional spherical coordinate system of the receiving antenna; is the latitudinal component of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the latitudinal unit vector in the three-dimensional spherical coordinate system of the receiving antenna; is the longitudinal component of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the longitudinal unit vector in the three-dimensional spherical coordinate system of the receiving antenna.

[0021] Optionally, the initial polarization vector of the transmitting antenna is:

[0022] ;

[0023] wherein, is the initial polarization vector of the transmitting antenna;

[0024] The initial polarization vector of the receiving antenna is:

[0025] ;

[0026] wherein, is the initial polarization vector of the receiving antenna.

[0027] Optionally, based on the polarization characteristics of the transmitting and receiving antennas, converting the initial polarization vector into a representation in the three-dimensional rectangular coordinate system to obtain the actual polarization vectors of the transmitting and receiving antennas, including:

[0028] Correcting the initial polarization vector based on the polarization characteristics;

[0029] Converting the corrected initial polarization vector into an actual polarization vector based on the conversion relationship between the three-dimensional spherical coordinate system and the three-dimensional rectangular coordinate system of the transmitting and receiving antennas.

[0030] Optionally, updating the actual polarization vector based on the current attitude data of the transmitting and receiving antenna carriers, including:

[0031] Obtaining the rotation matrix of the transmitting and receiving antenna carriers based on the current attitude data of the transmitting and receiving antenna carriers;

[0032] Updating the actual polarization vectors of the transmitting and receiving antennas based on the rotation matrix of the transmitting and receiving antenna carriers.

[0033] Optionally, the polarization loss factor is:

[0034] ;

[0035] wherein, is the polarization loss factor between the transmitting and receiving antennas; is the current actual polarization vector of the transmitting antenna; is the current actual polarization vector of the receiving antenna.

[0036] Optionally, the method for optimizing a wireless transceiver system in a dynamic scenario further includes:

[0037] When the attitude of the transceiver antenna carrier does not change, regularly update the actual polarization vector.

[0038] In a second aspect, an embodiment of the present disclosure further provides an optimization system for a wireless transceiver system in a dynamic scenario, adopting the following technical solution:

[0039] An initial polarization vector acquisition module, configured to construct a three-dimensional spherical coordinate system of the transceiver antennas, and acquire the initial polarization vectors of the transceiver antennas in the three-dimensional spherical coordinate system;

[0040] An initial polarization vector conversion module, configured to convert the initial polarization vector into a representation in a three-dimensional rectangular coordinate system based on the polarization characteristics of the transceiver antennas, and obtain the actual polarization vectors of the transceiver antennas;

[0041] An actual polarization vector update module, configured to update the actual polarization vector based on the current attitude data of the transceiver antenna carrier when the attitude of the transceiver antenna carrier changes;

[0042] A polarization loss factor acquisition module, configured to obtain the polarization loss factor between the transceiver antennas through a vector dot product algorithm based on the current actual polarization vectors of the transceiver antennas;

[0043] A wireless transceiver system optimization module, configured to analyze and optimize the link characteristics of the wireless transceiver system based on the polarization loss factor.

[0044] In a third aspect, an embodiment of the present disclosure further provides a computer device, adopting the following technical solution:

[0045] The computer device includes:

[0046] At least one processor; and,

[0047] A memory communicatively connected to the at least one processor; wherein,

[0048] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for optimizing a wireless transceiver system in a dynamic scenario as described above.

[0049] Fourthly, embodiments of the present disclosure further provide a computer-readable storage medium storing computer instructions for causing a computer to execute the method for optimizing a wireless transceiver system in a dynamic scenario described in any one of the above.

[0050] Fifthly, embodiments of the present disclosure further provide a computer program product including computer programs / instructions, and when the computer programs / instructions are executed by a processor, the steps of the method described in any one of the above are implemented.

[0051] The method for optimizing a wireless transceiver system in a dynamic scenario provided by embodiments of the present disclosure can more accurately describe the polarization state of an antenna by constructing a three-dimensional spherical coordinate system. Especially in a dynamic scenario, the polarization state of the antenna may change with the change of the carrier attitude. The three-dimensional spherical coordinate system provides a unified reference framework, facilitating subsequent polarization vector definition and characterization. Calculation is more convenient in a rectangular coordinate system, and it is easier to combine with attitude data in practical applications for dynamic update. Converting the polarization vector from the spherical coordinate system to the rectangular coordinate system facilitates subsequent calculation and processing. The polarization state of the antenna directly affects the received signal quality, and the dynamic environment and attitude may lead to polarization mismatch, thus affecting the link quality of the wireless transceiver system. Therefore, dynamically updating the actual polarization vector can reflect in real time the influence of the change of the carrier attitude on the polarization characteristics of the antenna, ensuring the accuracy of the polarization state, which is particularly important for the wireless transceiver system in a dynamic scenario. By calculating the polarization loss factor, the polarization matching degree between the transmitting and receiving antennas can be quantified, and the polarization mismatch loss between the transmitting and receiving antennas is quantified as a specific value, which is an important parameter for evaluating the wireless link performance and directly affects the signal transmission efficiency and communication quality. Analyzing the link characteristics and optimizing the link by using the polarization loss factor can effectively reduce the signal loss caused by polarization mismatch and improve the overall performance of the wireless transceiver system. In summary, this method can analyze in real time and dynamically the influence of the polarization characteristics of the transmitting and receiving antennas on the system link performance, and provide an accurate polarization characteristic representation of the antenna for the dynamic link analysis of the wireless transceiver system. By accurately analyzing the polarization mismatch loss between the transmitting and receiving antennas, the accuracy of calculating the link quality of the wireless transceiver system is improved, providing a comprehensive analysis means for possible link quality degradation.

[0052] The above description is only an overview of the technical solutions of the present disclosure. In order to understand the technical means of the present disclosure more clearly, it can be implemented according to the content of the description. In order to make the above and other purposes, features and advantages of the present disclosure more obvious and understandable, the following preferred embodiments are specifically given and described in detail in conjunction with the drawings. Description of the Drawings

[0053] To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings required for the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0054] Figure 1 Flow schematic diagram of the wireless transceiver system optimization method in a dynamic scenario provided by the embodiments of the present disclosure;

[0055] Figure 2 Flow schematic diagram of the initial polarization vector acquisition method provided by the embodiments of the present disclosure;

[0056] Figure 3 Schematic diagram of electromagnetic wave propagation and polarization direction provided by the embodiments of the present disclosure;

[0057] Figure 4 Schematic diagram of linear polarization provided by the embodiments of the present disclosure;

[0058] Figure 5 Schematic diagram of circular polarization provided by the embodiments of the present disclosure;

[0059] Figure 6 Schematic diagram of elliptical polarization provided by the embodiments of the present disclosure;

[0060] Figure 7 Schematic diagram of vertical polarization provided by the embodiments of the present disclosure;

[0061] Figure 8 Schematic diagram of horizontal polarization provided by the embodiments of the present disclosure;

[0062] Figure 9 Schematic diagram of the three-dimensional spherical coordinate representation of the radiation / reception direction provided by the embodiments of the present disclosure;

[0063] Figure 10 Flow schematic diagram of the actual polarization vector acquisition method provided by the embodiments of the present disclosure;

[0064] Figure 11 Flow schematic diagram of the actual polarization vector update method provided by the embodiments of the present disclosure;

[0065] Figure 12 Schematic diagram of the aircraft attitude characteristics provided by the embodiments of the present disclosure;

[0066] Figure 13 Schematic diagram of the transceiver antenna carrier provided by the embodiments of the present disclosure;

[0067] Figure 14 Another schematic diagram of the transceiver antenna carrier provided by the embodiments of the present disclosure;

[0068] Figure 15 It is a schematic block diagram of an optimization system for a wireless transceiver system in a dynamic scenario provided by an embodiment of the present disclosure;

[0069] Figure 16 It is a schematic structural diagram of a computer device provided by an embodiment of the present disclosure. Detailed implementation manners

[0070] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0071] It should be clear that the following uses specific specific examples to illustrate the implementation manners of the present disclosure, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the content disclosed in this specification. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The present disclosure can also be implemented or applied through other different specific implementation manners, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts belong to the scope of protection of the present disclosure.

[0072] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be obvious that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present disclosure, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and these aspects can be combined in various ways in two or more of them. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, this device and / or this method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0073] It should also be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present disclosure schematically, and only show the components related to the present disclosure in the diagrams, rather than being drawn according to the number, shape and size of the components in actual implementation. The type, quantity and ratio of each component in its actual implementation can be an arbitrary change, and the component layout type may also be more complex.

[0074] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0075] Refer toFigure 1 , the present disclosure provides an optimization method for a wireless transceiver system in a dynamic scenario, including the following steps:

[0076] S1: Construct a three-dimensional spherical coordinate system of the transceiver antenna, and obtain the initial polarization vector of the transceiver antenna in the three-dimensional spherical coordinate system;

[0077] S2: Based on the polarization characteristics of the transceiver antenna, convert the initial polarization vector into a representation in the three-dimensional rectangular coordinate system to obtain the actual polarization vector of the transceiver antenna;

[0078] S3: Determine whether the attitude of the transceiver antenna carrier has changed; if so, execute S4; if not, execute S5;

[0079] S4: Update the actual polarization vector based on the current attitude data of the transceiver antenna carrier;

[0080] S5: Regularly update the actual polarization vector;

[0081] S6: Based on the current actual polarization vector of the transceiver antenna, obtain the polarization loss factor between the transceiver antennas through the vector dot product algorithm;

[0082] S7: Analyze and optimize the link characteristics of the wireless transceiver system based on the polarization loss factor.

[0083] For the optimization method of the wireless transceiver system in the dynamic scenario of the present disclosure, by constructing a three-dimensional spherical coordinate system, the polarization state of the antenna can be more accurately described. Especially in a dynamic scenario, the polarization state of the antenna may change with the change of the carrier attitude. The three-dimensional spherical coordinate system provides a unified reference framework, which is convenient for subsequent polarization vector definition and characterization. Calculation in the rectangular coordinate system is more convenient, and it is easier to combine with attitude data in practical applications for dynamic update. Converting the polarization vector from the spherical coordinate system to the rectangular coordinate system is convenient for subsequent calculation and processing. The polarization state of the antenna directly affects the received signal quality, and the dynamic environment and attitude may lead to polarization mismatch, which in turn affects the link quality of the wireless transceiver system. Therefore, dynamically updating the actual polarization vector can reflect the impact of the change of the carrier attitude on the antenna polarization characteristics in real time, ensuring the accuracy of the polarization state, which is particularly important for the wireless transceiver system in a dynamic scenario. By calculating the polarization loss factor, the polarization matching degree between the transceiver antennas can be quantified, and the polarization mismatch loss between the transceiver antennas is quantified as a specific value, which is an important parameter for evaluating the wireless link performance and directly affects the signal transmission efficiency and communication quality. Analyzing the link characteristics and optimizing the link using the polarization loss factor can effectively reduce the signal loss caused by polarization mismatch and improve the overall performance of the wireless transceiver system.

[0084] In summary, this method can dynamically analyze the influence of the polarization characteristics of the transceiver antennas on the system link performance in real time, providing an accurate characterization of the antenna polarization characteristics for the dynamic link analysis of wireless transceiver systems. By accurately analyzing the polarization mismatch loss between the transceiver antennas, the accuracy of the link quality calculation of the wireless transceiver system is improved, providing a comprehensive analysis means for the possible degradation of the link quality.

[0085] In S1, the three-dimensional rectangular coordinate system is one of the most common coordinate systems, which consists of three mutually perpendicular axes, while the three-dimensional spherical coordinate system is a three-dimensional coordinate system based on the spherical coordinate system, which uses the radial distance, polar angle, and azimuth angle to describe points in space. Whether it is the three-dimensional rectangular coordinate system or the three-dimensional spherical coordinate system, any fixed point of the transceiver antenna or any fixed point of the transceiver antenna carrier (referring to the installation platform of the transceiver antenna) can be selected as the coordinate origin, such as the center point of the transceiver antenna, the center point of the transceiver antenna carrier, or the center of gravity point, and the axis directions can be defined according to actual needs. In this embodiment, the transceiver antenna includes a transmitting antenna and a receiving antenna. Therefore, when performing relevant operations, the data of the transmitting antenna and the receiving antenna can be processed using the same set of three-dimensional spherical coordinate system and three-dimensional rectangular coordinate system, or independent three-dimensional spherical coordinate system and three-dimensional rectangular coordinate system can be constructed for the transmitting antenna and the receiving antenna respectively for calculation. Similarly, the transmitting antenna carrier and the receiving antenna carrier can share the same set of three-dimensional rectangular coordinate system with the transmitting antenna and the receiving antenna, or each can independently construct a new set of three-dimensional rectangular coordinate system for calculation. Which specific method to adopt is not specifically limited in this solution and can be selected according to actual needs.

[0086] Referring to Figure 2 the flowchart of the initial polarization vector acquisition method shown, obtaining the initial polarization vectors of the transceiver antennas in the three-dimensional spherical coordinate system includes the following steps:

[0087] S11: Obtain the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system and the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system;

[0088] S12: Based on the radiation direction vector and the receiving direction vector, determine the polarization trajectory plane of the transceiver antennas;

[0089] S13: Based on the polarization trajectory plane, obtain the initial polarization vectors of the transceiver antennas.

[0090] In S11, in actual engineering, the receiving and radiation directions of the transceiver antennas are usually described by the spatial pointing angles, so the receiving and radiation direction vectors can be represented by the respective three-dimensional spherical coordinate systems of the transceiver antennas. The expression of the radiation direction vector of the transmitting antenna is as follows:

[0091] ; (Formula 1)

[0092] In Equation 1, is the radiation direction vector of the transmitting antenna; is the radial distance of the transmitting antenna in the three-dimensional spherical coordinate system; and are used to represent the radiation direction of the antenna. They are respectively the radiation direction angles of the transmitting antenna in the three-dimensional spherical coordinate system, where is the polar angle of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system, representing the angle between the radiation direction vector and the vertical axis, also known as the pointing angle in the vertical direction; is the azimuth angle of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system, representing the angle between the radiation direction vector and the horizontal axis, also known as the pointing angle in the horizontal direction; is the radial component of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the radial unit vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the latitudinal component of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the latitudinal unit vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the longitudinal component of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the longitudinal unit vector of the transmitting antenna in the three-dimensional spherical coordinate system.

[0093] The expression for the receiving direction vector of the receiving antenna is as follows:

[0094] ; (Equation 2)

[0095] In Equation 2, is the receiving direction vector of the receiving antenna; is the radial distance of the receiving antenna in the three-dimensional spherical coordinate system; and are used to represent the receiving direction of the antenna. They are respectively the receiving direction angles of the receiving antenna in the three-dimensional spherical coordinate system, where is the polar angle of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the azimuth angle of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the radial component of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the radial unit vector of the receiving antenna in the three-dimensional spherical coordinate system; is the latitudinal component of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the latitudinal unit vector of the receiving antenna in the three-dimensional spherical coordinate system; is the longitudinal component of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the meridional unit vector in the three-dimensional spherical coordinate system of the receiving antenna.

[0096] In S12, the polarization definition of electromagnetic waves shows that the polarization direction refers to the orientation of the electric field vector of the electromagnetic wave in space, that is, the vibration direction of the electric field. For electromagnetic waves radiated and received by antennas, they can be approximated as plane electromagnetic waves in the far field region, and the vibration vector of their electric field (i.e., the vector in the polarization direction, also called the polarization vector) and their direction vector (i.e., the propagation vector of the plane electromagnetic wave, indicating the vector in the propagation direction, for the transmitting antenna, its direction vector is called the radiation direction vector, and for the receiving antenna, its direction vector is called the receiving direction vector) are perpendicular to each other. Based on this characteristic, the plane perpendicular to it can be determined by the receiving and radiating direction vectors, and this plane is called the polarization trajectory plane.

[0097] Reference Figure 3 Schematic diagram showing electromagnetic wave propagation and polarization direction. represents any one of the radiation and reception direction vectors of the transmitting antenna and the receiving antenna, represents any one of the polarization vectors of the transmitting antenna and the receiving antenna, Represents either the magnetic field direction vector of the transmitting antenna or the receiving antenna. Figure 4 The linear polarization diagram shown here refers to the electric field vector vibrating along a fixed direction in the polarization trajectory plane, and its vibration trajectory is a straight line. Figure 5 Schematic diagram of circular polarization. Circular polarization means that the electric field vector changes with time and describes a circular trajectory in the polarization trajectory plane. Figure 6 A schematic diagram of elliptical polarization is shown. Elliptical polarization refers to the change of the electric field vector over time, describing an elliptical trajectory in the polarization trajectory plane.

[0098] In linear polarization, when the horizontal plane is used as a reference, if the direction of the electric field is perpendicular to the horizontal plane, it is called vertical polarization. Figure 7 Schematic diagram of vertical polarization, in which plane electromagnetic waves can propagate in any direction parallel to the horizontal plane.

[0099] In linear polarization, when the horizontal plane is used as a reference, if the direction of the electric field is parallel to the horizontal plane, it is called horizontal polarization. Figure 8 Schematic diagram of horizontal polarization. In this case, the plane electromagnetic wave can propagate in any direction perpendicular to the horizontal plane.

[0100] Based on the above, it can be seen that the characteristics of the transmit and receive polarization vectors are directly correlated with their direction vectors. Based on this correlation, as long as the direction vectors of the transmit and receive antennas are obtained based on the three-dimensional spherical coordinate system, the polarization trajectory plane can be determined, thereby facilitating the subsequent accurate definition and description of the polarization vector in the polarization trajectory plane.

[0101] In S13, within the polarization trajectory plane, the vibration trajectory of the electric field vector is recorded, and then the polarization characteristics of the electromagnetic wave are described based on the motion trajectory of the electric field vector. The vibration direction and magnitude of the electric field vector directly reflect the polarization state of the electromagnetic wave. In a three-dimensional spherical coordinate system, this polarization state can be described by a mathematical vector, namely the initial polarization vector. The initial polarization vector not only represents the direction of the electric field vector but also describes its vibration characteristics within the polarization trajectory plane, thus completely reflecting the polarization characteristics of the electromagnetic wave.

[0102] Referring to Figure 9 the schematic diagram of the three-dimensional spherical coordinate representation of the radiation / reception direction shown, P represents either the reception direction or the radiation direction, representing any one of the radial distances in the three-dimensional spherical coordinate system of the transceiver antenna, representing any one of the polar angles of the transceiver antenna direction vector in the three-dimensional spherical coordinate system, representing any one of the azimuth angles of the transceiver antenna direction vector in the three-dimensional spherical coordinate system, representing the radial unit vector in the three-dimensional spherical coordinate system of the transceiver antenna, representing the latitudinal unit vector in the three-dimensional spherical coordinate system of the transceiver antenna, representing the longitudinal unit vector in the three-dimensional spherical coordinate system of the transceiver antenna. Since is perpendicular to and which form a plane, therefore, according to the definition of polarization, and the plane formed is the polarization trajectory plane, and the polarization characteristics of the antenna can be described using the and components within this plane, forming the definition of the initial polarization vector of the antenna. Among them, the expression of the initial polarization vector of the transmitting antenna is as follows:

[0103] ; (Formula 3)

[0104] In Formula 3, is the initial polarization vector of the transmitting antenna; , that is, and respectively represent the polarization components in the direction and satisfy the polarization orthonormalization condition.

[0105] The expression of the initial polarization vector of the receiving antenna is as follows:

[0106] ; (Formula 4)

[0107] In Formula 4, is the initial polarization vector of the receiving antenna; , similarly, and satisfy the polarization orthonormalization condition.

[0108] In S2, referring to Figure 10 the flowchart of the actual polarization vector acquisition method shown, "Based on the polarization characteristics of the transmitting and receiving antennas, converting the initial polarization vector into a representation in a three-dimensional rectangular coordinate system to obtain the actual polarization vectors of the transmitting and receiving antennas" includes the following steps:

[0109] S21: Based on the polarization characteristics, correct the initial polarization vector;

[0110] S22: Based on the conversion relationship between the three-dimensional spherical coordinate system and the three-dimensional rectangular coordinate system of the transmitting and receiving antennas, convert the corrected initial polarization vector into the actual polarization vector.

[0111] In S21, the polarization characteristics of the transmitting and receiving antennas include at least one of the common vertical polarization, horizontal polarization, diagonal 45° polarization, diagonal -45° polarization, left-handed circular polarization, right-handed circular polarization, and elliptical polarization. The polarization characteristics of the actual antenna may deviate from the design value, resulting in possible errors between the initial polarization vector and the actual polarization vector. Therefore, correcting the corresponding initial polarization vector according to the polarization characteristics of the transmitting and receiving antennas can ensure that the radiation or reception of the transmitting and receiving antennas conforms to the designed polarization form, thereby achieving the best signal transmission and reception effects. This method can not only cope with the errors in the actual installation of the antenna but also adapt to different working scenarios and requirements.

[0112] If the polarization characteristic of the transmitting and receiving antenna is vertical polarization, then the electric field has only this component, the component is zero, and the radiation direction of the transmitting antenna and the receiving direction of the receiving antenna are both parallel to the horizontal plane. The radiation direction and the receiving direction are determined by Therefore , the initial polarization vector is perpendicular to the horizontal plane, and the initial polarization vector is corrected based on this principle. Among them, the expression of the corrected initial polarization vector of the transmitting antenna is as follows:

[0113] ; (Formula 5)

[0114] In Formula 5, is the corrected initial polarization vector of the transmitting antenna. Without loss of generality, can be taken for description.

[0115] The expression of the corrected initial polarization vector of the receiving antenna is as follows:

[0116] ; (Formula 6)

[0117] In Formula 6, is the initial polarization vector after correction of the receiving antenna. Without loss of generality, can be taken for description.

[0118] If the polarization characteristics of the transmitting and receiving antennas are horizontal polarization, then the electric field has only this component, the component is zero, and the radiation direction of the transmitting antenna and the receiving direction of the receiving antenna are determined by and The initial polarization vector is located in the plane, and the initial polarization vector is corrected based on this principle. Among them, the expression of the initial polarization vector after correction of the transmitting antenna is as follows:

[0119] ; (Formula 7)

[0120] In Formula 7, without loss of generality, can be taken for description.

[0121] The expression of the initial polarization vector after correction of the receiving antenna is as follows:

[0122] ; (Formula 8)

[0123] In Formula 8, without loss of generality, can be taken for description.

[0124] If the polarization characteristics of the transmitting and receiving antennas are oblique polarization, then the angle between the initial polarization vector and the horizontal plane is , and the radiation direction of the transmitting antenna and the receiving direction of the receiving antenna are determined by and The initial polarization vector is uniformly projected onto and directions, and the amplitude of each component is , and the initial polarization vector is corrected based on this principle. Among them, the expression of the initial polarization vector after correction of the transmitting antenna is as follows:

[0125] ; (Formula 9)

[0126] In Formula 9, without loss of generality, can be taken for description.

[0127] The expression of the initial polarization vector after correction of the receiving antenna is as follows:

[0128] ; (Formula 10)

[0129] In Formula 10, without loss of generality, it can be taken that for description.

[0130] If the polarization characteristic of the transmitting and receiving antennas is oblique polarization, the angle between the initial polarization vector and the horizontal plane is , the radiation direction of the transmitting antenna and the receiving direction of the receiving antenna are determined by and , the initial polarization vector is uniformly projected onto and , and the amplitude of each component is . Based on this principle, the initial polarization vector is corrected. Among them, the expression of the corrected initial polarization vector of the transmitting antenna is as follows:

[0131] ; (Formula 11)

[0132] In Formula 11, without loss of generality, it can be taken that for description.

[0133] The expression of the corrected initial polarization vector of the receiving antenna is as follows:

[0134] ; (Formula 12)

[0135] In Formula 12, without loss of generality, it can be taken that for description.

[0136] If the polarization characteristic of the transmitting and receiving antennas is left-handed circular polarization, the initial polarization vector forms a circular trajectory in the polarization trajectory plane in a clockwise direction, and the amplitudes of the components are , there is or phase relationship. Based on this principle, the initial polarization vector is corrected. Among them, the expression of the corrected initial polarization vector of the transmitting antenna is as follows:

[0137] ; (Formula 13)

[0138] In Formula 13, is the imaginary unit, indicates that the meridional unit vector lags behind the zonal unit vector by . Without loss of generality, it can be taken that for description.

[0139] The expression of the corrected initial polarization vector of the receiving antenna is as follows:

[0140] ; (Equation 14)

[0141] In Equation 14, without loss of generality, it can be taken that for description.

[0142] If the polarization characteristic of the transmitting and receiving antennas is right - hand circular polarization, the initial polarization vector forms a circular trajectory in the polarization trajectory plane in a counter - clockwise direction. and The amplitude of the component is , there exists or phase relationship, and the initial polarization vector is corrected based on this principle. Among them, the expression of the corrected initial polarization vector of the transmitting antenna is as follows:

[0143] ; (Equation 15)

[0144] In Equation 15, represents that the meridional unit vector leads the zonal unit vector by . Without loss of generality, it can be taken that for description.

[0145] The expression of the corrected initial polarization vector of the receiving antenna is as follows:

[0146] ; (Equation 16)

[0147] In Equation 16, without loss of generality, it can be taken that for description.

[0148] Elliptical polarization includes left - hand elliptical polarization and right - hand elliptical polarization. If the polarization characteristic of the transmitting and receiving antennas is left - hand elliptical polarization, the initial polarization vector forms an elliptical trajectory in the polarization trajectory plane in a clockwise direction, and the initial polarization vector is corrected based on this principle. Among them, the expression of the corrected initial polarization vector of the transmitting antenna is as follows:

[0149] ; (Equation 17)

[0150] In Equation 17, is the component in the direction, representing the major semi - axis of the elliptical trajectory formed by the initial polarization vector of the transmitting antenna in the polarization trajectory plane; is the component in the direction, representing the minor semi - axis of the elliptical trajectory formed by the initial polarization vector of the transmitting antenna in the polarization trajectory plane; and satisfy the polarization orthonormalization condition. , and , is the axial ratio of the elliptical polarization of the transmitting antenna, that is, the ratio of the major axis to the minor axis of the elliptical trajectory formed by the initial polarization vector of the transmitting antenna in the polarization trajectory plane. Without loss of generality, can be taken for description.

[0151] The expression of the initial polarization vector of the receiving antenna is as follows:

[0152] ; (Formula 18)

[0153] In Formula 18, is the component in the direction, representing the major semi-axis of the elliptical trajectory formed by the initial polarization vector of the receiving antenna in the polarization trajectory plane; is and satisfy the polarization orthonormalization condition, , and , is the axial ratio of the elliptical polarization of the receiving antenna, that is, the ratio of the major axis to the minor axis of the elliptical trajectory formed by the initial polarization vector of the receiving antenna in the polarization trajectory plane. Without loss of generality, can be taken for description.

[0154] If the polarization characteristics of the transmitting and receiving antennas are right-handed elliptical polarization, the initial polarization vector forms an elliptical trajectory counterclockwise in the polarization trajectory plane, and the initial polarization vector is corrected based on this principle. Among them, the expression of the corrected initial polarization vector of the transmitting antenna is as follows:

[0155] ; (Formula 19)

[0156] In Formula 19, without loss of generality, can be taken for description.

[0157] The expression of the initial polarization vector of the receiving antenna is as follows:

[0158] ; (Formula 20)

[0159] In Formula 20, without loss of generality, can be taken for description.

[0160] In S22, the conversion relationship between the three-dimensional spherical coordinate system and the three-dimensional rectangular coordinate system of the transmitting antenna is as follows:

[0161] ; (Formula 21)

[0162] In Formula 21, is the unit vector in the three-dimensional rectangular coordinate system of the transmitting antenna along the axis direction; is the unit vector in the three-dimensional rectangular coordinate system of the transmitting antenna along the axis direction; is the unit vector in the three-dimensional rectangular coordinate system of the transmitting antenna along the axis direction.

[0163] The conversion relationship between the three-dimensional spherical coordinate system and the three-dimensional rectangular coordinate system of the receiving antenna is as follows:

[0164] ; (Formula 22)

[0165] In Formula 22, is the unit vector in the three-dimensional rectangular coordinate system of the receiving antenna along the axis direction; is the unit vector in the three-dimensional rectangular coordinate system of the receiving antenna along the axis direction; is the unit vector in the three-dimensional rectangular coordinate system of the receiving antenna along the axis direction.

[0166] Substitute the conversion relationship of the transmitting and receiving antennas into the expression of the initial polarization vector of the transmitting and receiving antennas after correction to obtain the actual polarization vector.

[0167] If the polarization characteristics of the transmitting and receiving antennas are vertical polarization, , according to Formula (5) and Formula (21), the expression of the actual polarization vector of the transmitting antenna is as follows:

[0168] ; (Formula 23)

[0169] In Formula 23, is the actual polarization vector of the transmitting antenna.

[0170] Similarly, the expression of the actual polarization vector of the receiving antenna is as follows:

[0171] ; (Formula 24)

[0172] In Formula 24, is the actual polarization vector of the receiving antenna.

[0173] If the polarization characteristics of the transmitting and receiving antennas are horizontal polarization, according to Formula (7) and Formula (21), the expression of the actual polarization vector of the transmitting antenna is as follows:

[0174] ; (Formula 25)

[0175] Similarly, the expression of the actual polarization vector of the receiving antenna is as follows:

[0176] 。(Formula 26)

[0177] If the polarization characteristics of the transmitting and receiving antennas are obliquely polarized, according to Formula (9) and Formula (21), the expression of the actual polarization vector of the transmitting antenna is as follows:

[0178] ; (Formula 27)

[0179] Similarly, the expression of the actual polarization vector of the receiving antenna is as follows:

[0180] 。(Formula 28)

[0181] If the polarization characteristics of the transmitting and receiving antennas are obliquely polarized, according to Formula (11) and Formula (21), the expression of the actual polarization vector of the transmitting antenna is as follows:

[0182] ; (Formula 29)

[0183] Similarly, the expression of the actual polarization vector of the receiving antenna is as follows:

[0184] 。(Formula 30)

[0185] If the polarization characteristics of the transmitting and receiving antennas are left-handed circular polarization, according to Formula (13) and Formula (21), the expression of the actual polarization vector of the transmitting antenna is as follows:

[0186] ; (Formula 31)

[0187] Similarly, the expression of the actual polarization vector of the receiving antenna is as follows:

[0188] 。(Formula 32)

[0189] If the polarization characteristics of the transmitting and receiving antennas are right-handed circular polarization, according to Formula (15) and Formula (21), the expression of the actual polarization vector of the transmitting antenna is as follows:

[0190] ; (Formula 33)

[0191] Similarly, the expression of the actual polarization vector of the receiving antenna is as follows:

[0192] 。(Formula 34)

[0193] If the polarization characteristics of the transmitting and receiving antennas are left-handed elliptical polarization, according to Formulas (17) and (21), the expression of the actual polarization vector of the transmitting antenna can be obtained as follows:

[0194] ; (Formula 35)

[0195] Similarly, the expression of the actual polarization vector of the receiving antenna is as follows:

[0196] 。(Formula 36)

[0197] If the polarization characteristics of the transmitting and receiving antennas are right-handed elliptical polarization, according to Formulas (19) and (21), the expression of the actual polarization vector of the transmitting antenna can be obtained as follows:

[0198] ; (Formula 37)

[0199] The expression of the actual polarization vector of the receiving antenna is as follows:

[0200] 。(Formula 38)

[0201] In the actual engineering application of S3, the carriers of the transmitting and receiving antennas are usually dynamic moving devices such as airplanes, ships, and vehicles. Moreover, the transmitting and receiving antennas usually form a rigid structure with their carriers, and their polarization characteristics are defined based on the horizontal plane. For example, the common horizontal polarization and vertical polarization are defined with reference to the horizontal plane. However, when the attitude of the carrier changes, the polarization vector of the transmitting and receiving antennas will also change accordingly, resulting in a change in its polarization characteristics. Therefore, it is necessary to collect the attitude data of the carrier in real time and determine whether the attitude of the carrier has changed based on the previously and currently obtained attitude data. When the attitude of the carrier changes, recalculate the actual polarization vector of the antenna carried by it to accurately reflect its current polarization state.

[0202] In S4, referring to Figure 11 the schematic flowchart of the actual polarization vector update method shown, update the actual polarization vector based on the current attitude data of the transmitting and receiving antenna carrier, including the following steps:

[0203] S41: Based on the current attitude data of the transmitting and receiving antenna carrier, obtain the rotation matrix of the transmitting and receiving antenna carrier;

[0204] S42: Update the actual polarization vector of the transmitting and receiving antennas based on the rotation matrix of the transmitting and receiving antenna carrier.

[0205] In S41, a three-dimensional rectangular coordinate system of the carrier is constructed, and the current attitude data of the carrier, that is, the rotation angles about each coordinate axis, are collected. Specifically, it includes the rotation angle about the axis (horizontal axis), , the rotation angle about the axis (vertical axis), and the rotation angle about the axis (vertical axis). , and the rotation sequence is .

[0206] Referring to the schematic diagram of the aircraft attitude characteristics shown in Figure 12 , assuming the carrier is an aircraft, a three-dimensional rectangular coordinate system is established with the center point of the aircraft as the coordinate origin. The wingspan direction is defined as the positive direction, the nose direction is defined as the positive direction, and the vertical direction of the aircraft to the ground is defined as the positive direction. A coordinate system is established according to the right-hand rule, and the plane is defined as the horizontal plane.

[0207] The current attitude data of the carrier can be described by a rotation matrix, which is convenient for subsequent calculation of the new actual polarization vector. Among them, the expression of the rotation matrix of the transmitting antenna carrier is as follows:

[0208] ; (Formula 39)

[0209] In Formula 39, is the rotation matrix of the transmitting antenna carrier; is the rotation angle of the transmitting antenna carrier about the horizontal axis ( axis) in the three-dimensional rectangular coordinate system; is the rotation angle of the transmitting antenna carrier about the vertical axis ( axis) in the three-dimensional rectangular coordinate system; is the rotation angle of the transmitting antenna carrier about the vertical axis ( axis) in the three-dimensional rectangular coordinate system.

[0210] The expression of the rotation matrix of the receiving antenna carrier is as follows:

[0211] ; (Formula 40)

[0212] In Formula 40, is the rotation matrix of the receiving antenna carrier; is the rotation angle of the receiving antenna carrier about the horizontal axis ( axis) in the three-dimensional rectangular coordinate system; is the rotation angle of the receiving antenna carrier about the vertical axis ( axis) in the three-dimensional rectangular coordinate system; is the rotation angle of the receiving antenna carrier about the vertical axis ( axis) in a three-dimensional rectangular coordinate system.

[0213] In S42, a new actual polarization vector is obtained by left-multiplying the actual polarization vector by the rotation matrix. Among them, the expression of the new actual polarization vector of the transmitting antenna is as follows:

[0214] ; (Formula 41)

[0215] In Formula 41, is the new actual polarization vector of the transmitting antenna.

[0216] Similarly, the expression of the new actual polarization vector of the receiving antenna is as follows:

[0217] ; (Formula 42)

[0218] In Formula 42, is the new actual polarization vector of the receiving antenna.

[0219] In S5, even if the attitude of the transceiver antenna carrier does not change, the actual polarization vector needs to be updated regularly. Because changes in environmental factors (such as temperature, humidity, electromagnetic interference, etc.), antenna aging, equipment wear, etc. may all cause changes in the polarization state of the transceiver antenna. Therefore, when the attitude of the transceiver antenna carrier does not change, regularly updating the actual polarization vector is actually a calibration of the wireless transceiver system, ensuring that the signal transmission between the transceiver antennas is always in the best state, so as to ensure that the performance of the wireless transceiver system always remains in the best state and improve the reliability and stability of communication.

[0220] In S6, the expression of the polarization loss factor is as follows:

[0221] ; (Formula 43)

[0222] In Formula 43, is the polarization loss factor between the transceiver antennas; is the current actual polarization vector of the transmitting antenna; is the current actual polarization vector of the receiving antenna. The vector dot product of Formula 43 is calculated according to the dot product rule in a three-dimensional rectangular coordinate system. Before the actual polarization vector of the transmitting antenna is updated, is equal to ; after the actual polarization vector of the transmitting antenna is updated, is equal to ; before the actual polarization vector of the receiving antenna is updated, is equal to , after the actual polarization vector of the receiving antenna is updated, equals .

[0223] It should be noted that the polarization loss factor is the result obtained by performing a dot product on the transmitting and receiving polarization vectors and is only used to characterize the polarization matching situation. When calculating the characteristics of the complete transmitting and receiving link, in addition to the polarization mismatch factor, it is also necessary to superimpose and consider the effects of pattern modulation when the transmitting and receiving antenna directions are misaligned, the transmitting and receiving efficiency of the antenna, the transmission loss in the transmitting and receiving space, environmental absorption, and other factors. Combining these effects and the polarization mismatch factor can accurately analyze and optimize the link characteristics of the wireless transmitting and receiving system.

[0224] In S7, the current link quality of the wireless transmitting and receiving system is evaluated based on the polarization loss factor, including calculating key parameters such as signal strength and signal-to-noise ratio. By continuously monitoring the change of the polarization loss factor, a decrease in link quality can be detected in a timely manner. Once a problem is found, measures such as adjusting the transmit power and using digital signal processing technology at the receiving end are taken to compensate for the signal loss caused by polarization mismatch. After the optimization adjustment, the actual polarization vector is measured again, and it is evaluated whether the link performance has improved until the link performance reaches the expected standard. For future reference and possible further optimization, all measurement data and optimization steps are recorded, and a detailed performance report is generated based on the measurement and optimization results for review and decision-making by relevant parties. Through this method, the polarization loss factor can be dynamically updated and effectively utilized to optimize the link of the wireless transmitting and receiving system, thereby improving the overall communication quality and reliability.

[0225] In summary, the existing antenna polarization definitions and analysis methods only define horizontal polarization, vertical polarization, circular polarization, etc. according to the trajectory of the electric field vibration direction, without combining the radiation direction of the transmitting antenna and the receiving direction of the receiving antenna with their polarization characteristics for description. According to the derivation of this solution, it can be seen that after accurately defining the radiation direction of the transmitting antenna and the receiving direction of the receiving antenna, the polarization characteristics such as horizontal, vertical, and circular polarization can be accurately described mathematically, so as to perform polarization characteristic analysis and calculate the polarization mismatch loss. The dynamic scenario-based optimization method for wireless transmitting and receiving systems of this application provides a mathematically self-consistent antenna polarization characteristic analysis method, which is applicable to link quality analysis, can also support link optimization, simulation analysis, etc., solves the polarization characteristic characterization problems of arbitrary antenna polarization and the coupling of antenna polarization characteristics with the attitude of the installation platform, and thus effectively processes the polarization problem in engineering, filling the gap in the existing technology of lacking a polarization mismatch loss quantification method that can be actually applied to engineering problems.

[0226] This application also provides a series of specific examples:

[0227] When there is no attitude change in both the transmitting and receiving antenna carriers, and the polarization of the transmitting and receiving antennas is matched (i.e., the polarization characteristics of the transmitting antenna are the same as those of the receiving antenna), according to the electromagnetic field theory, the polarization loss factor is 1 at this time. Here, in order to exclude the interference of the antenna pattern modulation effect when the transmitting and receiving antennas are misaligned, only the polarization loss when the transmitting and receiving directions are aligned is analyzed.

[0228] At this time , , , the rotation matrix is the identity matrix,

[0229] That is .

[0230] Specifically, when both the transmitting and receiving antennas are vertically polarized,

[0231] ,

[0232] Therefore, .

[0233] When both the transmitting and receiving antennas are horizontally polarized, since ,

[0234] ,

[0235] ,

[0236] Therefore, .

[0237] When both the transmitting and receiving antennas are obliquely polarized, since ,

[0238] ,

[0239] ,

[0240] Therefore, .

[0241] When both the transmitting and receiving antennas are obliquely polarized, for ,

[0242] ,

[0243] ,

[0244] Therefore, .

[0245] When both the transmitting and receiving antennas are left-hand circularly polarized, since , ,

[0246] ,

[0247] ,

[0248] Therefore, .

[0249] When the transmitting antenna and the receiving antenna are both right-handed circularly polarized, due to , ,

[0250] ,

[0251] ,

[0252] Therefore, .

[0253] Similarly, when the transmitting antenna and the receiving antenna are both left-handed elliptically polarized or right-handed elliptically polarized, the polarization loss factor is also equal to 1, which will not be elaborated here.

[0254] In practical applications, different application scenarios and environmental conditions have different requirements for the polarization matching of the transmitting and receiving antennas. Therefore, there will also be cases where the polarization of the transmitting and receiving antennas is mismatched (referring to the different polarization characteristics of the transmitting antenna and the receiving antenna).

[0255] Taking the example where the carriers of the transmitting and receiving antennas have no attitude changes, and without loss of generality: the transmitting antenna is vertically polarized and the receiving antenna is horizontally polarized. Since vertical polarization and horizontal polarization are completely orthogonal, the polarization loss factor is 0,

[0256] That is .

[0257] When the transmitting antenna is obliquely polarized and the receiving antenna is obliquely polarized, , the polarization is completely orthogonal and the polarization loss factor is 0,

[0258] That is .

[0259] When the transmitting antenna is left-handed circularly polarized and the receiving antenna is right-handed circularly polarized, , the left-handed circular polarization and the right-handed circular polarization are completely orthogonal and the polarization loss factor is 0,

[0260] That is .

[0261] When the transmitting antenna is vertically polarized and the receiving antenna is obliquely polarized or obliquely polarized, the polarization loss factor is 0.5,

[0262] That is ,

[0263] At this time and correspond to the polarization vector expressions for oblique polarization.

[0264] When the transmitting antenna is horizontally polarized and the receiving antenna is obliquely polarized or obliquely polarized, , , the polarization loss factor is 0.5,

[0265] That is .

[0266] When the transmitting antenna is vertically polarized and the receiving antenna is circularly polarized, the polarization loss factor is 0.5,

[0267] That is , at this time and correspond to the polarization vector expressions for left-hand circular polarization and right-hand circular polarization.

[0268] When the transmitting antenna is horizontally polarized and the receiving antenna is circularly polarized, the polarization loss factor is 0.5, , ,

[0269] That is .

[0270] When the transmitting antenna is obliquely polarized or obliquely polarized, and the receiving antenna is left-hand circularly polarized or right-hand circularly polarized, , , the polarization loss factor is 0.5,

[0271] That is .

[0272] Taking the attitude change of the transceiver antenna carrier as an example and without loss of generality:

[0273] Suppose the transmitting antenna and the receiving antenna are both vertically polarized, and the carriers of the transmitting antenna and the receiving antenna are both airplanes. Referring to Figure 13 the schematic diagram of the transceiver antenna carrier shown, the left figure is the schematic diagram of the transmitting antenna carrier, and the transmitting antenna carrier rotates around the horizontal axis , the right figure is a schematic diagram of the carrier of the transmitting antenna, and the carrier of the receiving antenna rotates around the horizontal axis , this situation can be equivalent to the included angle between the polarization vectors of the transmitting and receiving antennas being , and the polarization loss factor is 0.5.

[0274] Specifically, for the carrier of the transmitting antenna, at this time , ,

[0275] Then ,

[0276] Therefore, ;

[0277] For the carrier of the receiving antenna, at this time , ,

[0278] Then ,

[0279] Therefore, ;

[0280] Get .

[0281] Assume that the transmitting antenna is horizontally polarized, its radiation direction is the positive longitudinal axis direction, the receiving antenna is obliquely polarized, its receiving direction is the positive longitudinal axis direction, and the carriers of both the transmitting antenna and the receiving antenna are airplanes. Refer to Figure 14 Another schematic diagram of the carriers of the transmitting and receiving antennas shown. The upper and lower left figures are schematic diagrams of the normal flight of the carrier of the transmitting antenna and the carrier of the receiving antenna respectively, and the upper and lower right figures are schematic diagrams of the flight postures of the carrier of the transmitting antenna and the carrier of the receiving antenna after changes. Among them, the carrier of the transmitting antenna rotates around the longitudinal axis , and the carrier of the receiving antenna rotates around the longitudinal axis , this situation can be equivalent to the included angle between the polarization vectors of the transmitting and receiving antennas being , and the polarization loss factor is 0.

[0282] Specifically, for the carrier of the transmitting antenna, at this time , ,

[0283] Then ,

[0284] When the carrier of the transmitting antenna does not rotate, the radiation direction of the transmitting antenna is the positive longitudinal axis direction, ,

[0285] Therefore, ,

[0286] After the carrier of the transmitting antenna rotates, update the actual polarization vector of the transmitting antenna,

[0287] Therefore, ;

[0288] For the receiving antenna carrier, at this time , ,

[0289] Then ,

[0290] When the receiving antenna carrier does not rotate, the receiving direction of the receiving antenna is the positive longitudinal axis direction. ,

[0291] Therefore, = ,

[0292] After the receiving antenna carrier rotates, update the actual polarization vector of the receiving antenna.

[0293] ;

[0294] Obtain .

[0295] According to the above example, it can be seen that this method can be applied to both static and dynamic scenarios. Especially in dynamic scenarios, it can also timely capture the changes in the actual polarization vectors of the transceiver antennas, thereby dynamically updating the polarization loss factor, and further ensuring that the link of the wireless transceiver system can continuously be in the optimal state.

[0296] Referring to Figure 15 , the present disclosure provides an optimization system for a wireless transceiver system in a dynamic scenario, including:

[0297] An initial polarization vector acquisition module 101, configured to construct a three-dimensional spherical coordinate system of the transceiver antennas, and acquire the initial polarization vectors of the transceiver antennas in the three-dimensional spherical coordinate system;

[0298] An initial polarization vector conversion module 102, configured to convert the initial polarization vectors into representations in a three-dimensional rectangular coordinate system based on the polarization characteristics of the transceiver antennas, and obtain the actual polarization vectors of the transceiver antennas;

[0299] An actual polarization vector update module 103, configured to update the actual polarization vectors based on the current attitude data of the receiving antenna carrier when the attitude of the receiving antenna carrier changes;

[0300] A polarization loss factor acquisition module 104, configured to obtain the polarization loss factor between the transceiver antennas through a vector dot product algorithm based on the current actual polarization vectors of the transceiver antennas;

[0301] A wireless transceiver system optimization module 105, configured to analyze and optimize the link characteristics of the wireless transceiver system based on the polarization loss factor.

[0302] The various change methods and specific examples in the method for optimizing a wireless transceiver system in a dynamic scenario provided above are equally applicable to the system for optimizing a wireless transceiver system in a dynamic scenario provided in this disclosure. Through the foregoing detailed description of the method for optimizing a wireless transceiver system in a dynamic scenario, those skilled in the art can clearly know the implementation method of the system for optimizing a wireless transceiver system in a dynamic scenario. For the sake of brevity of the specification, it will not be elaborated herein again.

[0303] A computer device according to an embodiment of the present disclosure includes a memory and a processor. The memory is used to store non-transitory computer-readable instructions. Specifically, the memory may include one or more computer program products, and the computer program products may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory, etc. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc.

[0304] The processor may be a central processing unit (CPU) or other forms of processing units with data processing capabilities and / or instruction execution capabilities, and may control other components in the computer device to perform desired functions. In an embodiment of the present disclosure, the processor is used to run the computer-readable instructions stored in the memory, so that the computer device executes all or part of the steps of the method for optimizing a wireless transceiver system in a dynamic scenario of the foregoing embodiments of the present disclosure.

[0305] Those skilled in the art should be able to understand that, in order to solve the technical problem of how to obtain good user experience effects, this embodiment may also include well-known structures such as communication buses, interfaces, etc., and these well-known structures should also be included in the protection scope of the present disclosure.

[0306] As Figure 16 FIG. is a schematic structural diagram of a computer device provided in an embodiment of the present disclosure. It shows a schematic structural diagram of a computer device suitable for implementing the computer device in the embodiment of the present disclosure. Figure 16 The computer device shown is only an example and should not impose any limitation on the functions and usage scope of the embodiments of the present disclosure.

[0307] As Figure 16As shown, a computer device may include a processor (such as a central processing unit, a graphics processing unit, etc.), which may perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) or a program loaded from a storage device into a random access memory (RAM). In the RAM, various programs and data required for the operation of the computer device are also stored. The processor, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0308] Generally, the following devices may be connected to the I / O interface: an input device including, for example, a sensor or a visual information acquisition device, etc.; an output device including, for example, a display screen, etc.; a storage device including, for example, a magnetic tape, a hard disk, etc.; and a communication device. The communication device may allow the computer device to communicate wirelessly or wiredly with other devices (such as edge computing devices) to exchange data. Although Figure 16 a computer device with various devices is shown, it should be understood that it is not required to implement or have all the shown devices. Instead, more or fewer devices may be implemented or had.

[0309] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart may be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a non-transitory computer-readable medium, and the computer program contains program codes for executing the method shown in the flowchart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication device, or installed from a storage device, or installed from a ROM. When the computer program is executed by the processor, all or part of the steps of the method for optimizing a wireless transceiver system in a dynamic scenario of the embodiments of the present disclosure are executed.

[0310] For a detailed description of this embodiment, reference may be made to the corresponding descriptions in the foregoing embodiments, and details are not repeated here.

[0311] A computer-readable storage medium according to an embodiment of the present disclosure has non-temporary computer-readable instructions stored thereon. When the non-temporary computer-readable instructions are run by a processor, all or part of the steps of the method for optimizing a wireless transceiver system in a dynamic scenario of the foregoing embodiments of the present disclosure are executed.

[0312] The above computer-readable storage medium includes but is not limited to: optical storage media (such as: CD-ROM and DVD), magneto-optical storage media (such as: MO), magnetic storage media (such as: magnetic tape or removable hard disk), media with built-in rewritable non-volatile memory (such as: memory card), and media with built-in ROM (such as: ROM cartridge).

[0313] For a detailed description of this embodiment, reference may be made to the corresponding descriptions in the foregoing embodiments, which will not be repeated herein.

[0314] The basic principles of the present disclosure have been described above in connection with specific embodiments. However, it should be noted that the advantages, benefits, effects, etc. mentioned in the present disclosure are only examples and not limitations, and it cannot be considered that these advantages, benefits, effects, etc. are essential for each embodiment of the present disclosure. In addition, the specific details disclosed above are only for illustrative and easy-to-understand purposes, rather than limitations, and the above details do not limit the present disclosure to necessarily adopt the above specific details to implement.

[0315] In the present disclosure, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The block diagrams of the devices, apparatuses, equipment, and systems involved in the present disclosure are only illustrative examples and do not intend to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open-ended words, meaning "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used herein refer to the word "and / or" and can be used interchangeably with it, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to" and can be used interchangeably with it.

[0316] In addition, as used herein, the "or" used in the listing of items starting with "at least one" indicates a separate listing, so that for example, the listing of "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the term "exemplary" does not mean that the described examples are preferred or better than other examples.

[0317] It should also be noted that in the systems and methods of the present disclosure, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present disclosure.

[0318] Various changes, substitutions, and alterations to the technology described herein can be made without departing from the teachings defined by the appended claims. Additionally, the scope of the claims of this disclosure is not limited to the specific aspects of the processes, machines, manufactures, compositions of events, means, methods, and acts described above. Processes, machines, manufactures, compositions of events, means, methods, or acts that are currently available or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Accordingly, the appended claims include such processes, machines, manufactures, compositions of events, means, methods, or acts within their scope.

[0319] The foregoing description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the disclosure. Thus, the present disclosure is not intended to be limited to the aspects shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0320] The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the disclosure to the form disclosed herein. Although several example aspects and embodiments have been discussed above, those skilled in the art will recognize some variations, modifications, alterations, additions, and subcombinations thereof.

Claims

1. An optimization method for a wireless transceiver system in a dynamic scenario, characterized in that, Including: Construct a three-dimensional spherical coordinate system of the transceiver antenna, and obtain the initial polarization vector of the transceiver antenna in the three-dimensional spherical coordinate system; Based on the polarization characteristics of the transceiver antenna, convert the initial polarization vector into a representation in a three-dimensional rectangular coordinate system to obtain the actual polarization vector of the transceiver antenna; When the attitude of the transceiver antenna carrier changes, update the actual polarization vector based on the current attitude data of the transceiver antenna carrier; Among them, the updating the actual polarization vector based on the current attitude data of the transceiver antenna carrier includes: Based on the current attitude data of the transceiver antenna carrier, obtain the rotation matrix of the transceiver antenna carrier; Update the actual polarization vector of the transceiver antenna based on the rotation matrix of the transceiver antenna carrier; Based on the current actual polarization vector of the transceiver antenna, obtain the polarization loss factor between the transceiver antennas through the vector dot product algorithm; Analyze and optimize the link characteristics of the wireless transceiver system based on the polarization loss factor.

2. The optimization method of the wireless transceiver system in a dynamic scenario according to claim 1, wherein The transceiver antenna includes a transmitting antenna and a receiving antenna; The obtaining the initial polarization vector of the transceiver antenna in the three-dimensional spherical coordinate system includes: Obtain the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system and the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; Based on the radiation direction vector and the receiving direction vector, determine the polarization trajectory plane of the transceiver antenna; Based on the polarization trajectory plane, obtain the initial polarization vector of the transceiver antenna.

3. The optimization method for a wireless transceiver system in a dynamic scenario according to claim 2, wherein The radiation direction vector is: ； Wherein, is the radiation direction vector of the transmitting antenna; is the radial distance of the transmitting antenna in the three-dimensional spherical coordinate system; is the polar angle of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the azimuth angle of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the radial component of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the radial unit vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the latitudinal component of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the latitudinal unit vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the longitudinal component of the radiation direction vector of the transmitting antenna in the three-dimensional spherical coordinate system; is the longitudinal unit vector of the transmitting antenna in the three-dimensional spherical coordinate system.

4. The optimization method for a wireless transceiver system in a dynamic scenario according to claim 3, characterized in that The receiving direction vector is: ； In the formula, is the receiving direction vector of the receiving antenna; is the radial distance of the receiving antenna in the three-dimensional spherical coordinate system; is the polar angle of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the azimuth angle of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the radial component of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the radial unit vector in the three-dimensional spherical coordinate system of the receiving antenna; is the latitudinal component of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the latitudinal unit vector in the three-dimensional spherical coordinate system of the receiving antenna; is the longitudinal component of the receiving direction vector of the receiving antenna in the three-dimensional spherical coordinate system; is the longitudinal unit vector in the three-dimensional spherical coordinate system of the receiving antenna.

5. The method for optimizing a wireless transceiver system in a dynamic scenario according to claim 4, wherein The initial polarization vector of the transmitting antenna is: ； In the formula, is the initial polarization vector of the transmitting antenna; The initial polarization vector of the receiving antenna is: ； In the formula, is the initial polarization vector of the receiving antenna.

6. The method for optimizing a wireless transceiver system in a dynamic scenario according to claim 1, wherein The converting the initial polarization vector into a representation in a three-dimensional rectangular coordinate system based on the polarization characteristics of the transceiver antenna to obtain the actual polarization vector of the transceiver antenna includes: Based on the polarization characteristics, correct the initial polarization vector; Based on the conversion relationship between the three-dimensional spherical coordinate system and the three-dimensional rectangular coordinate system of the transceiver antenna, convert the corrected initial polarization vector into an actual polarization vector.

7. The optimization method for a wireless transceiver system in a dynamic scenario according to claim 1, characterized in that The polarization loss factor is: ； In the formula, is the polarization loss factor between the transmitting and receiving antennas; is the current actual polarization vector of the transmitting antenna; is the current actual polarization vector of the receiving antenna.

8. The method for optimizing a wireless transceiver system in a dynamic scenario according to claim 1, wherein It further includes: When the attitude of the transceiver antenna carrier does not change, regularly update the actual polarization vector.

9. A computer device, characterized in that, The computer device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for optimizing a wireless transceiver system in a dynamic scenario according to any one of claims 1-8.

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