Phased array array generated beam direction adjustment method, device and electronic equipment

Abstract

The present application provides a method, device and electronic device for adjusting the direction of a beam generated by a phased array, and relates to the field of radar signal processing technology. The method includes: obtaining array parameters of a phased array and device parameters of a phase shifter corresponding to each array element in the phased array; determining the phase shift quantization error of each array element based on a preset quantization strategy, array parameters and device parameters of a phase shifter corresponding to each array element; determining a reference array element from multiple array elements of the phased array, and determining a phase shift adjustment value of the reference array element based on the phase shift quantization error of each target array element except the reference array element in the multiple array elements; and phase shifting the reference array element according to the phase shift adjustment value of the reference array element to adjust the direction of the beam generated by the phased array. The present application compensates for the quantization loss caused by the phase shift of other array elements by phase shifting the reference array element, reduces the influence of the increased beam pointing deviation caused by the quantization accuracy of the phase shifter, and thereby improves the beam pointing accuracy.

Description

Technical Field

[0001] The present application relates to the field of radar signal processing technology, and in particular to a method, device and electronic equipment for adjusting the direction of a phased array generated beam. Background Art

[0002] In the field of radar technology, especially in phased array radar systems, beam scanning is a vital function. Phased array radar can dynamically change the direction of the radar beam by adjusting the phase of the transmitted and received signals, so that the target can be quickly detected and tracked without physically moving the antenna. In this process, it is necessary to rely on the digital phase shifter in the Transmit / Receive (TR) component to accurately control the signal phase, thereby achieving rapid scanning of the beam in three-dimensional space. However, due to the limited number of bits of the digital phase shifter, the minimum phase shift amount generated by the digital phase shifter is subject to certain constraints, which may lead to discontinuous jumps in the beam during the scanning process. The existence of beam jumps makes it impossible for the phased array radar to achieve smooth continuity like a mechanical rotating antenna when performing beam scanning, which directly affects the performance of the radar system.

[0003] In order to solve the above problems, the existing technology usually adopts virtual bit technology to reduce beam jump. Virtual bit technology simulates the phase shift effect of higher bit number by introducing additional algorithm processing. The more virtual bits there are, the smaller the beam jump can be suppressed. However, although this method can improve the beam jump problem to a certain extent, as the number of virtual bits increases, the actual pointing of the beam may be in error, thus affecting the accuracy and reliability of the radar system. Summary of the invention

[0004] The purpose of the present application is to provide a method, device and electronic device for adjusting the direction of a phased array generated beam in view of the above-mentioned deficiencies in the prior art, so as to solve the problem of low pointing accuracy of the phased array generated beam in the prior art.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] In a first aspect, an embodiment of the present application provides a method for adjusting the direction of a beam generated by a phased array, the method comprising:

[0007] Acquire array parameters of a phased array and device parameters of a phase shifter corresponding to each array element in the phased array, wherein the array parameters include: array element spacing, a wavelength and a beam pointing angle corresponding to each array element, and the device parameters include: the number of bits of the phase shifter;

[0008] Determining a phase shift quantization error of each array element based on a preset quantization strategy, the array parameters, and device parameters of a phase shifter corresponding to each array element;

[0009] Determine a reference array element from a plurality of array elements of the phased array, and determine a phase shift adjustment value of the reference array element based on a phase shift quantization error of each target array element among the plurality of array elements except the reference array element;

[0010] According to the phase shift adjustment value of the reference array element, the reference array element is phase shifted to adjust the direction of the beam generated by the phased array.

[0011] As a possible implementation manner, determining the phase shift quantization error of each array element based on a preset quantization strategy, the array parameters, and device parameters of a phase shifter corresponding to each array element includes:

[0012] Determining a theoretical phase shift value of each array element based on the array element spacing, the wavelength corresponding to each array element, and the beam pointing angle;

[0013] Determining an actual phase shift value of each array element based on the preset quantization strategy, a theoretical phase shift value of each array element, and a number of bits of a phase shifter corresponding to each array element;

[0014] The phase shift quantization error of each array element is determined according to the theoretical phase shift value and the actual phase shift value of each array element.

[0015] As a possible implementation manner, determining the actual phase shift value of each array element based on the preset quantization strategy, the theoretical phase shift value of each array element, and the number of bits of the phase shifter corresponding to each array element includes:

[0016] Determining the quantization accuracy of the phase shifter corresponding to each array element according to the number of bits of the phase shifter corresponding to each array element;

[0017] Determining a first quantized value of each array element according to a quantization accuracy of a phase shifter corresponding to each array element and a theoretical phase shift value of each array element;

[0018] Quantizing the first quantized value of each of the array elements based on the preset quantization strategy to obtain a second quantized value of each of the array elements;

[0019] The actual phase shift value of each array element is determined according to the quantization accuracy of the phase shifter corresponding to each array element and the second quantization value of each array element.

[0020] As a possible implementation manner, determining a reference array element from a plurality of array elements of the phased array includes:

[0021] Any one of the multiple array elements is used as the reference array element.

[0022] As a possible implementation manner, determining the phase shift adjustment value of the reference array element based on the phase shift quantization error of each target array element among the multiple array elements except the reference array element includes:

[0023] Based on the number of array elements of the phased array, a plurality of target array elements are divided into a first array element group and a second array element group, wherein the first array element group and the second array element group respectively include a plurality of target array elements;

[0024] Determining a quantization error response according to a phase shift quantization error of each of the target array elements in the first array element group and a phase shift quantization error of each of the target array elements in the second array element group;

[0025] A phase shift adjustment value of the reference array element is determined according to the quantization error response.

[0026] As a possible implementation manner, determining the phase shift adjustment value of the reference array element according to the quantization error response includes:

[0027] Performing phase processing on the quantization error response to obtain an initial phase shift adjustment value of the reference array element;

[0028] Determining the quantization accuracy of the target phase shifter corresponding to the reference array element according to the number of bits of the target phase shifter corresponding to the reference array element;

[0029] The phase shift adjustment value of the reference array element is determined based on the preset quantization strategy, the initial phase shift adjustment value of the reference array element and the quantization accuracy of the target phase shifter corresponding to the reference array element.

[0030] As a possible implementation manner, the performing phase shifting on the reference array element according to the phase shift adjustment value of the reference array element includes:

[0031] A phase shift instruction including the phase shift adjustment value is sent to the target phase shifter corresponding to the reference array element, so that the target phase shifter corresponding to the reference array element adjusts the amount of change of the signal phase by the target phase shifter according to the phase shift adjustment value.

[0032] In a second aspect, an embodiment of the present application provides a device for adjusting the direction of a phased array generated beam, the device comprising:

[0033] An acquisition module, used to acquire array parameters of a phased array and device parameters of a phase shifter corresponding to each array element in the phased array, wherein the array parameters include: array element spacing, wavelength and beam pointing angle corresponding to each array element, and the device parameters include: number of bits of the phase shifter;

[0034] A first determination module, configured to determine a phase shift quantization error of each array element based on a preset quantization strategy, the array parameters, and device parameters of a phase shifter corresponding to each array element;

[0035] A second determination module is used to determine a reference array element from a plurality of array elements of the phased array, and determine a phase shift adjustment value of the reference array element based on a phase shift quantization error of each target array element among the plurality of array elements except the reference array element;

[0036] The phase shift module is used to perform phase shift on the reference array element according to the phase shift adjustment value of the reference array element, so as to adjust the direction of the beam generated by the phased array.

[0037] As a possible implementation manner, the first determining module is specifically configured to:

[0038] Determining a theoretical phase shift value of each array element based on the array element spacing, the wavelength corresponding to each array element, and the beam pointing angle;

[0039] Determining an actual phase shift value of each array element based on the preset quantization strategy, a theoretical phase shift value of each array element, and a number of bits of a phase shifter corresponding to each array element;

[0040] The phase shift quantization error of each array element is determined according to the theoretical phase shift value and the actual phase shift value of each array element.

[0041] As a possible implementation manner, the first determining module is specifically configured to:

[0042] Determine the quantization accuracy of the phase shifter corresponding to each array element according to the number of bits of the phase shifter corresponding to each array element;

[0043] Determining a first quantization value of each array element according to a quantization accuracy of a phase shifter corresponding to each array element and a theoretical phase shift value of each array element;

[0044] Quantizing the first quantized value of each of the array elements based on the preset quantization strategy to obtain a second quantized value of each of the array elements;

[0045] The actual phase shift value of each array element is determined according to the quantization accuracy of the phase shifter corresponding to each array element and the second quantization value of each array element.

[0046] As a possible implementation manner, the second determining module is specifically configured to:

[0047] Any array element among the multiple array elements is used as the reference array element.

[0048] As a possible implementation manner, the second determining module is specifically configured to:

[0049] Based on the number of array elements of the phased array, a plurality of target array elements are divided into a first array element group and a second array element group, wherein the first array element group and the second array element group respectively include a plurality of target array elements;

[0050] Determining a quantization error response according to a phase shift quantization error of each of the target array elements in the first array element group and a phase shift quantization error of each of the target array elements in the second array element group;

[0051] A phase shift adjustment value of the reference array element is determined according to the quantization error response.

[0052] As a possible implementation manner, the second determining module is specifically configured to:

[0053] Performing phase processing on the quantization error response to obtain an initial phase shift adjustment value of the reference array element;

[0054] Determining the quantization accuracy of the target phase shifter corresponding to the reference array element according to the number of bits of the target phase shifter corresponding to the reference array element;

[0055] The phase shift adjustment value of the reference array element is determined based on the preset quantization strategy, the initial phase shift adjustment value of the reference array element and the quantization accuracy of the target phase shifter corresponding to the reference array element.

[0056] As a possible implementation manner, the phase shift module is specifically used for:

[0057] A phase shift instruction including the phase shift adjustment value is sent to the target phase shifter corresponding to the reference array element, so that the target phase shifter corresponding to the reference array element adjusts the amount of change of the signal phase by the target phase shifter according to the phase shift adjustment value.

[0058] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a processor, a storage medium and a bus, wherein the storage medium stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the storage medium communicate through the bus, and the processor executes the machine-readable instructions to perform the steps of the method for adjusting the pointing of a phased array beam generated as described in any one of the first aspects above.

[0059] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method for adjusting the pointing of a phased array array generated beam as described in any one of the first aspects above are executed.

[0060] According to the method, device and electronic device for adjusting the direction of a beam generated by a phased array according to the embodiments of the present application, array parameters of the phased array and device parameters of a phase shifter corresponding to each array element are obtained, and the phase shift quantization error of each array element is determined based on a preset quantization strategy, array parameters and device parameters of a phase shifter corresponding to each array element. A reference array element is determined from multiple array elements of the phased array, and a phase shift adjustment value of the reference array element is determined based on the phase shift quantization errors of each target array element except the reference array element. According to the phase shift adjustment value of the reference array element, the reference array element is phase-shifted to adjust the direction of the beam generated by the phased array. According to the embodiment of the present application, the error of each array element caused by the limitation of the number of phase shifters in the actual phase shift process is quantized by determining the phase shift quantization error of each array element, and a reference array element is selected from multiple array elements of the phased array array, and the phase shift adjustment value of the reference array element is determined based on the phase shift quantization error of each target array element except the reference array element, and the reference array element is phase-adjusted by the phase shift adjustment value of the reference array element, thereby compensating for the beam pointing deviation caused by the quantization error of other array elements in the phase shift process. That is to say, the present application selects a reference array element, and adjusts the phase shift amount of the reference array element based on the phase shift quantization error of other array elements, and compensates for the quantization loss caused by the phase shift of other array elements by phase shifting the reference array element, thereby reducing the influence of the increased beam pointing deviation caused by the quantization accuracy of the phase shifter, effectively compensating for the beam pointing deviation caused by the limitation of the quantization accuracy of the phase shifter while realizing precise control of the beam pointing, and improving the pointing accuracy of the beam generated by the phased array. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0062] Figure 1 A schematic diagram of a flow chart of a method for adjusting the direction of a phased array generated beam provided in an embodiment of the present application is shown;

[0063] Figure 2 A schematic diagram of a phased array provided in an embodiment of the present application is shown;

[0064] Figure 3 A schematic diagram of a process for determining a phase shift quantization error provided by an embodiment of the present application is shown;

[0065] Figure 4 A schematic diagram of a flow chart of a method for determining a phase shift adjustment value provided in an embodiment of the present application is shown;

[0066] Figure 5 A schematic diagram of the structure of a phased array beam generation direction adjustment device provided in an embodiment of the present application is shown;

[0067] Figure 6 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0068] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flowchart under the guidance of the content of the present application, or remove one or more operations from the flowchart.

[0069] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0070] In order to enable those skilled in the art to use the content of this application, the following implementation is provided in conjunction with a specific application scenario "phased array radar beam pointing". For those skilled in the art, the general principles defined herein can be applied to other embodiments and application scenarios without departing from the spirit and scope of this application. Although this application is mainly described around the method for adjusting the pointing of a beam generated by a phased array array, it should be understood that this is only an exemplary embodiment.

[0071] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0072] Figure 1The flowchart of a method for adjusting the direction of a beam generated by a phased array provided in an embodiment of the present application is shown. The execution subject of the method is a beam control module corresponding to the phased array. Figure 1 As shown, the method specifically comprises the following steps:

[0073] S101, acquiring array parameters of a phased array and device parameters of a phase shifter corresponding to each array element in the phased array.

[0074] Optionally, the array parameters include: element spacing, wavelength and beam pointing angle corresponding to each element, and the equipment parameters include: the number of phase shifter bits. The element spacing refers to the distance between two adjacent elements in the phased array, the wavelength is a basic physical quantity of electromagnetic waves, and for a given frequency, the wavelength determines the propagation characteristics of the signal, the beam pointing angle refers to the angle of the beam generated by the phased array relative to the normal direction of the antenna array plane, and the number of phase shifter bits determines the phase adjustment accuracy that the phase shifter can provide. The more phase shifter bits, the finer the phase adjustment that can be achieved.

[0075] For example, refer to Figure 2 As shown, represents the array element spacing, Indicates the beam pointing angle. Assume that the phased array has N channels, that is, N array elements, from left to right they are array element No. 0, array element No. 1, etc. number of array elements, and the array elements are arranged at equal intervals.

[0076] S102: Determine a phase shift quantization error of each array element based on a preset quantization strategy, array parameters, and device parameters of a phase shifter corresponding to each array element.

[0077] Optionally, the preset quantization strategy refers to a quantization method used when processing the phase adjustment of the phase shifter, for example The rounding operation strategy means that when determining the phase value of the phase shifter, the closest ideal phase value can be determined by rounding.

[0078] Optionally, the theoretical phase shift value of each array element is determined using array parameters, including array element spacing, wavelength corresponding to each array element, and beam pointing angle, and the actual phase shift value of each array element after quantization is determined according to the above-mentioned preset quantization strategy and the device parameters of the phase shifter corresponding to each array element, and then the difference between the quantized actual phase shift value and the theoretical phase shift value is calculated to obtain the phase shift quantization error of each array element. In this way, the deviation between the actual phase value and the ideal phase value caused by the limitation of the number of bits of the phase shifter is quantitatively analyzed, and the accuracy of beam pointing can be optimized.

[0079] S103: Determine a reference array element from a plurality of array elements of the phased array, and determine a phase shift adjustment value of the reference array element based on a phase shift quantization error of each target array element except the reference array element among the plurality of array elements.

[0080] Optionally, any one of the plurality of array elements may be used as a reference array element. Figure 2 As shown, among the multiple array elements of the phased array, either the 0th array element or the N-1th array element can be used as the reference array element.

[0081] Optionally, for other target array elements except the selected reference array element among the multiple array elements of the phased array, the phase shift quantization error of each target array element is calculated, and the phase shift quantization error reflects the deviation between the actual phase value and the ideal phase value caused by the bit limit of the phase shifter. On this basis, the phase shift adjustment value of the reference array element is further calculated, and the phase shift adjustment value is used to compensate for the beam pointing deviation caused by the quantization error of other array elements, so as to optimize the pointing accuracy of the beam generated by the entire phased array by adjusting the phase shift amount of the reference array element.

[0082] S104: Shift the phase of the reference array element according to the phase shift adjustment value of the reference array element to adjust the direction of the beam generated by the phased array.

[0083] Optionally, the beam control module corresponding to the phased array sends a phase shift instruction including a phase shift adjustment value to the target phase shifter corresponding to the reference array element, so that the target phase shifter corresponding to the reference array element adjusts the amount of change of the signal phase by the target phase shifter according to the phase shift adjustment value.

[0084] Exemplarily, on the basis of determining the phase shift adjustment value of the reference array element, the beam control module corresponding to the phased array sends the calculated phase shift adjustment value to the target phase shifter corresponding to the reference array element in the form of an instruction. After receiving the phase shift instruction, the target phase shifter corresponding to the reference element adjusts the amount of change in the signal phase according to the phase shift adjustment value, thereby ensuring that the quantization error can be effectively compensated and the accuracy of beam pointing can be improved.

[0085] Based on this, according to the method for adjusting the direction of the generated beam of the phased array provided in the embodiment of the present application, the error caused by the limitation of the number of bits of the phase shifter in the actual phase shifting process of each element is quantized by determining the phase shift quantization error of each element, and a reference element is selected from multiple elements of the phased array, and the phase shift adjustment value of the reference element is determined based on the phase shift quantization error of each target element except the reference element, and the reference element is phase-adjusted by the phase shift adjustment value of the reference element, thereby compensating for the beam pointing deviation caused by the quantization error of other elements in the phase shifting process. That is to say, the present application selects a reference element, and adjusts the phase shift of the reference element based on the phase shift quantization error of other elements, and compensates for the quantization loss caused by the phase shifting of other elements by phase shifting the reference element, thereby reducing the influence of the increased beam pointing deviation caused by the quantization accuracy of the phase shifter, effectively compensating for the beam pointing deviation caused by the limitation of the quantization accuracy of the phase shifter while realizing the precise control of the beam pointing, and improving the pointing accuracy of the generated beam of the phased array.

[0086] Figure 3 FIG. 1 is a flow chart of a method for determining a phase shift quantization error provided by an embodiment of the present application. Figure 3 As shown, the above step S102 determines the phase shift quantization error of each array element based on the preset quantization strategy, array parameters and device parameters of the phase shifter corresponding to each array element, and specifically includes the following steps:

[0087] S301 : Determine a theoretical phase shift value of each array element based on array element spacing, a wavelength corresponding to each array element, and a beam pointing angle.

[0088] For example, when the array element spacing is , the wavelength is , the beam pointing angle is When , the theoretical phase shift value of each array element can be determined according to the following formula (1):

[0089] (1)

[0090] in, represents the theoretical phase shift value of the array element, represents the array element spacing, represents the wavelength, represents the beam pointing angle, represents the number of array elements, and , Represents the trigonometric sine function.

[0091] S302: Determine the actual phase shift value of each array element based on a preset quantization strategy, the theoretical phase shift value of each array element, and the number of bits of the phase shifter corresponding to each array element.

[0092] Optionally, according to the number of bits of the phase shifter corresponding to each array element, the quantization accuracy of the phase shifter corresponding to each array element is determined; according to the quantization accuracy of the phase shifter corresponding to each array element and the theoretical phase shift value of each array element, the first quantization value of each array element is determined; based on a preset quantization strategy, the first quantization value of each array element is quantized to obtain a second quantization value of each array element; according to the quantization accuracy of the phase shifter corresponding to each array element and the second quantization value of each array element, the actual phase shift value of each array element is determined.

[0093] For example, the quantization accuracy of the phase shifter refers to the minimum phase change that the phase shifter can represent. The higher the number of bits of the phase shifter, the higher the quantization accuracy of the phase shifter. For example, if the number of bits of the phase shifter is M, the quantization accuracy of the phase shifter can be determined according to the following formula (2):

[0094] (2)

[0095] in, It represents the quantization accuracy of the phase shifter, and M represents the number of bits of the phase shifter.

[0096] For example, the theoretical phase shift value refers to the phase shift value required to achieve ideal beam pointing to each array element in the absence of quantization error. Based on the above formula (1), the theoretical phase shift value of each array element is determined. , and determine the quantization accuracy of the phase shifter corresponding to each array element according to the above formula (2) Based on this, the first quantization value of each array element can be further determined. .

[0097] Furthermore, when the preset quantitative strategy is Based on the rounding operation strategy, the first quantization value of each array element is quantized based on the preset quantization strategy to obtain the second quantization value of each array element. , and then according to the quantization accuracy of the phase shifter corresponding to each array element and the second quantized value of each array element , determine the actual phase shift value of each array element .

[0098] For example, the actual phase shift value of the array element is It can be determined based on the following formula (3):

[0099] (3)

[0100] in, Indicates the actual phase shift value of the array element, represents the quantization accuracy of the phase shifter, represents the theoretical phase shift value of the array element, Indicates rounding operation.

[0101] S303: Determine the phase shift quantization error of each array element according to the theoretical phase shift value and the actual phase shift value of each array element.

[0102] Exemplarily, the theoretical phase shift value of each array element is determined according to the above formula (1): , and determine the actual phase shift value of each array element according to the above formula (2) , the phase shift quantization error of each array element can be determined as .

[0103] Based on this, by effectively determining the phase shift quantization error of each array element in the phased array, the beam pointing accuracy is optimized and the overall performance of the radar system is improved. This not only reduces the impact of the quantization error on the performance of the radar system, but also improves the stability of the radar system and the resource utilization efficiency.

[0104] Figure 4 A flow chart of a method for determining a phase shift adjustment value provided in an embodiment of the present application is shown. Figure 4 As shown, the above step S103 determines the phase shift adjustment value of the reference array element based on the phase shift quantization error of each target array element except the reference array element among the multiple array elements, and specifically includes the following steps:

[0105] S401 . Divide a plurality of target array elements into a first array element group and a second array element group based on the number of array elements of the phased array.

[0106] Optionally, the phased array is an array of an even number of array elements, and the first array element group and the second array element group each include a plurality of target array elements. Exemplarily, if the phased array has n array elements, and n is an even number, The n array elements can be divided into the first array element group and the second array element group. Figure 2 As shown, n array elements are array element No. 0, array element No. 1 to array element No. N-1. If array element No. 0 is taken as the reference array element, then the target array element included in the first array element group is , the second array element group contains the target array element .

[0107] S402: Determine a quantization error response according to the phase shift quantization error of each target array element in the first array element group and the phase shift quantization error of each target array element in the second array element group.

[0108] For example, taking the 0th array element as the reference array element, in addition to the reference array element, the phase shift quantization error of the 1st array element to the N-1th array element is calculated based on the following formula (4): The quantization error response is:

[0109] (4)

[0110] in, represents the quantization error response, represents the phase shift quantization error, represents the exponential function operation, represents the sum of the phase shift quantization errors of each target array element in the first array element group, It represents the sum of the phase shift quantization errors of each target array element in the second array element group.

[0111] S403: Determine a phase shift adjustment value of a reference array element according to a quantization error response.

[0112] Optionally, a phase processing is performed on the quantization error response to obtain an initial phase shift adjustment value of the reference array element; a quantization accuracy of a target phase shifter corresponding to the reference array element is determined according to the number of bits of the target phase shifter corresponding to the reference array element; and a phase shift adjustment value of the reference array element is determined based on a preset quantization strategy, the initial phase shift adjustment value of the reference array element, and the quantization accuracy of the target phase shifter corresponding to the reference array element.

[0113] For example, refer to Figure 2 As shown, taking the 0th array element as the reference array element as an example, the quantization error response can be calculated based on the following formula (5): Perform phase processing to obtain the initial phase shift adjustment value of the reference array element:

[0114] (5)

[0115] in, Indicates the initial phase shift adjustment value of the reference array element, represents the phase operation, represents the quantization error response.

[0116] Furthermore, the above formula (5) is used to calculate the quantization error response Phase processing can make , thereby improving the beam pointing accuracy.

[0117] Exemplarily, based on determining the number of bits of the target phase shifter corresponding to the reference array element, the quantization accuracy of the target phase shifter corresponding to the reference array element is determined according to the above formula (2): , and then according to Rounding strategy, initial phase shift adjustment value of reference array element And the quantization accuracy of the target phase shifter corresponding to the reference array element , determine the phase shift adjustment value of the reference array element, as shown in the following formula (6):

[0118] (6)

[0119] in, The phase shift adjustment value of the reference array element, Indicates the initial phase shift adjustment value of the reference array element, represents the quantization accuracy of the target phase shifter corresponding to the reference array element, Indicates rounding operation.

[0120] Based on this, the embodiment of the present application reduces the influence of the increased beam pointing deviation caused by the quantization accuracy of the phase shifter by calculating and adjusting the phase shift amount of the reference array element in real time, thereby ensuring accurate beam pointing accuracy.

[0121] Based on the same inventive concept, an embodiment of the present application also provides a device for adjusting the direction of a phased array generated beam corresponding to the method for adjusting the direction of a phased array generated beam. Since the principle of solving the problem by the device in the embodiment of the present application is similar to the method for adjusting the direction of a phased array generated beam in the embodiment of the present application, the implementation of the device for adjusting the direction of a phased array generated beam can refer to the implementation of the method, and the repeated parts will not be repeated.

[0122] Reference Figure 5 As shown, it is a structural schematic diagram of a phased array array generating a beam pointing adjustment device provided in an embodiment of the present application, and the phased array array generating a beam pointing adjustment device 500 includes: an acquisition module 501, a first determination module 502, a second determination module 503 and a phase shift module 504, wherein:

[0123] An acquisition module 501 is used to acquire array parameters of a phased array and device parameters of a phase shifter corresponding to each array element in the phased array, wherein the array parameters include: array element spacing, wavelength corresponding to each array element, and beam pointing angle, and the device parameters include: the number of bits of the phase shifter;

[0124] A first determination module 502, configured to determine a phase shift quantization error of each array element based on a preset quantization strategy, array parameters, and device parameters of a phase shifter corresponding to each array element;

[0125] A second determination module 503 is used to determine a reference array element from a plurality of array elements of the phased array, and determine a phase shift adjustment value of the reference array element based on a phase shift quantization error of each target array element except the reference array element among the plurality of array elements;

[0126] The phase shift module 504 is used to perform phase shift on the reference array element according to the phase shift adjustment value of the reference array element, so as to adjust the direction of the beam generated by the phased array.

[0127] Based on this, according to the phased array array generating beam pointing adjustment device of the embodiment of the present application, by determining the phase shift quantization error of each array element, the error caused by the phase shifter bit limit in the actual phase shift process of each array element is quantized, and a reference array element is selected from multiple array elements of the phased array array, and the phase shift adjustment value of the reference array element is determined based on the phase shift quantization error of each target array element except the reference array element, and the reference array element is phase-shifted by the reference array element The adjustment value of the phase shift is adjusted, and then the beam pointing deviation caused by the quantization error of other array elements during the phase shift process is compensated. In other words, the present application selects a reference array element, and adjusts the phase shift of the reference array element based on the phase shift quantization error of other array elements, and compensates for the quantization loss caused by the phase shift of other array elements by phase shifting the reference array element, thereby reducing the influence of the increased beam pointing deviation caused by the quantization accuracy of the phase shifter, and effectively compensates for the beam pointing deviation caused by the quantization accuracy limit of the phase shifter while realizing precise control of the beam pointing, thereby improving the pointing accuracy of the phased array array generating beam.

[0128] In a possible implementation manner, the first determining module 502 is specifically configured to:

[0129] Determine the theoretical phase shift value of each array element based on the array element spacing, the wavelength corresponding to each array element, and the beam pointing angle;

[0130] Determine the actual phase shift value of each array element based on a preset quantization strategy, a theoretical phase shift value of each array element, and the number of bits of a phase shifter corresponding to each array element;

[0131] According to the theoretical phase shift value and the actual phase shift value of each array element, the phase shift quantization error of each array element is determined.

[0132] In a possible implementation manner, the first determining module 502 is specifically configured to:

[0133] Determine the quantization accuracy of the phase shifter corresponding to each array element according to the number of bits of the phase shifter corresponding to each array element;

[0134] Determine a first quantized value of each array element according to a quantization accuracy of a phase shifter corresponding to each array element and a theoretical phase shift value of each array element;

[0135] Quantizing the first quantized value of each array element based on a preset quantization strategy to obtain a second quantized value of each array element;

[0136] The actual phase shift value of each array element is determined according to the quantization accuracy of the phase shifter corresponding to each array element and the second quantization value of each array element.

[0137] In a possible implementation manner, the second determining module 503 is specifically configured to:

[0138] Any array element among the multiple array elements is used as a reference array element.

[0139] In a possible implementation manner, the second determining module 503 is specifically configured to:

[0140] Based on the number of array elements of the phased array, the plurality of target array elements are divided into a first array element group and a second array element group, wherein the first array element group and the second array element group respectively include a plurality of target array elements;

[0141] Determining a quantization error response according to a phase shift quantization error of each target array element in the first array element group and a phase shift quantization error of each target array element in the second array element group;

[0142] According to the quantization error response, the phase shift adjustment value of the reference array element is determined.

[0143] In a possible implementation manner, the second determining module 503 is specifically configured to:

[0144] Performing phase processing on the quantization error response to obtain an initial phase shift adjustment value of the reference array element;

[0145] Determine the quantization accuracy of the target phase shifter corresponding to the reference array element according to the number of bits of the target phase shifter corresponding to the reference array element;

[0146] The phase shift adjustment value of the reference array element is determined based on a preset quantization strategy, an initial phase shift adjustment value of the reference array element, and a quantization accuracy of a target phase shifter corresponding to the reference array element.

[0147] In a possible implementation manner, the phase shift module 504 is specifically used to:

[0148] A phase shift instruction including a phase shift adjustment value is sent to a target phase shifter corresponding to the reference array element, so that the target phase shifter corresponding to the reference array element adjusts the amount of change of the signal phase by the target phase shifter according to the phase shift adjustment value.

[0149] For descriptions of the processing flow of each module in the device and the interaction flow between each module, reference may be made to the relevant descriptions in the above method embodiment, which will not be described in detail here.

[0150] The present application embodiment also provides an electronic device 600, such as Figure 6 As shown, it is a schematic diagram of the structure of an electronic device 600 provided in an embodiment of the present application, including: a processor 601, a memory 602, and optionally, a bus 603. The memory 602 stores machine-readable instructions executable by the processor 601. When the electronic device 600 is running, the processor 601 communicates with the memory 602 through the bus 603. When the machine-readable instructions are executed by the processor 601, the steps in the method for adjusting the direction of a phased array generated beam as described in any of the above items are performed.

[0151] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps in the method for adjusting the pointing of a phased array generated beam as described in any one of the above items are executed.

[0152] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the method embodiment, and will not be repeated in this application. In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0153] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or part of the technical solution that contributes to the prior art or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), disk or optical disk and other media that can store program code.

[0154] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A method for adjusting the direction of a beam generated by a phased array, characterized in that: include: Acquire array parameters of a phased array and device parameters of a phase shifter corresponding to each array element in the phased array, wherein the array parameters include: array element spacing, a wavelength and a beam pointing angle corresponding to each array element, and the device parameters include: the number of bits of the phase shifter; Determining a phase shift quantization error of each array element based on a preset quantization strategy, the array parameters, and device parameters of a phase shifter corresponding to each array element; Determine a reference array element from a plurality of array elements of the phased array, and determine a phase shift adjustment value of the reference array element based on a phase shift quantization error of each target array element among the plurality of array elements except the reference array element; According to the phase shift adjustment value of the reference array element, the reference array element is phase shifted to adjust the direction of the beam generated by the phased array; The determining the phase shift adjustment value of the reference array element based on the phase shift quantization errors of each target array element except the reference array element among the multiple array elements comprises: dividing the multiple target array elements into a first array element group and a second array element group based on the number of array elements of the phased array, wherein the first array element group and the second array element group respectively include multiple target array elements; determining a quantization error response according to the phase shift quantization errors of each target array element in the first array element group and the phase shift quantization errors of each target array element in the second array element group; performing phase processing on the quantization error response to obtain an initial phase shift adjustment value of the reference array element; determining a quantization accuracy of a target phase shifter corresponding to the reference array element according to the number of bits of the target phase shifter corresponding to the reference array element; and determining the phase shift adjustment value of the reference array element based on the preset quantization strategy, the initial phase shift adjustment value of the reference array element, and the quantization accuracy of the target phase shifter corresponding to the reference array element.

2. The method according to claim 1, characterized in that The determining the phase shift quantization error of each array element based on the preset quantization strategy, the array parameters and the device parameters of the phase shifter corresponding to each array element includes: Determining a theoretical phase shift value of each array element based on the array element spacing, the wavelength corresponding to each array element, and the beam pointing angle; Determining an actual phase shift value of each array element based on the preset quantization strategy, a theoretical phase shift value of each array element, and a number of bits of a phase shifter corresponding to each array element; The phase shift quantization error of each array element is determined according to the theoretical phase shift value and the actual phase shift value of each array element.

3. The method according to claim 2, characterized in that The determining the actual phase shift value of each array element based on the preset quantization strategy, the theoretical phase shift value of each array element and the number of bits of the phase shifter corresponding to each array element includes: Determining the quantization accuracy of the phase shifter corresponding to each array element according to the number of bits of the phase shifter corresponding to each array element; Determining a first quantized value of each array element according to a quantization accuracy of a phase shifter corresponding to each array element and a theoretical phase shift value of each array element; Performing quantization processing on the first quantization value of each of the array elements based on the preset quantization strategy to obtain a second quantization value of each of the array elements; The actual phase shift value of each array element is determined according to the quantization accuracy of the phase shifter corresponding to each array element and the second quantization value of each array element.

4. The method according to claim 1, characterized in that: The determining of a reference array element from a plurality of array elements of the phased array comprises: Any one of the multiple array elements is used as the reference array element.

5. The method according to claim 1, characterized in that The phase shifting of the reference array element according to the phase shift adjustment value of the reference array element comprises: A phase shift instruction including the phase shift adjustment value is sent to the target phase shifter corresponding to the reference array element, so that the target phase shifter corresponding to the reference array element adjusts the amount of change of the signal phase by the target phase shifter according to the phase shift adjustment value.

6. A phased array beam-generating direction adjustment device, characterized in that: include: An acquisition module, used to acquire array parameters of a phased array and device parameters of a phase shifter corresponding to each array element in the phased array, wherein the array parameters include: array element spacing, wavelength and beam pointing angle corresponding to each array element, and the device parameters include: number of bits of the phase shifter; A first determination module, configured to determine a phase shift quantization error of each array element based on a preset quantization strategy, the array parameters, and device parameters of a phase shifter corresponding to each array element; A second determination module is used to determine a reference array element from a plurality of array elements of the phased array, and determine a phase shift adjustment value of the reference array element based on a phase shift quantization error of each target array element among the plurality of array elements except the reference array element; A phase shift module, configured to perform phase shift on the reference array element according to a phase shift adjustment value of the reference array element, so as to adjust the direction of the beam generated by the phased array; The second determination module is configured to divide a plurality of target array elements into a first array element group and a second array element group based on the number of array elements of the phased array, wherein the first array element group and the second array element group respectively include a plurality of target array elements; determine a quantization error response according to a phase shift quantization error of each of the target array elements in the first array element group and a phase shift quantization error of each of the target array elements in the second array element group; perform phase processing on the quantization error response to obtain an initial phase shift adjustment value of the reference array element; determine a quantization accuracy of a target phase shifter corresponding to the reference array element according to the number of bits of the target phase shifter corresponding to the reference array element; and determine a phase shift adjustment value of the reference array element based on the preset quantization strategy, the initial phase shift adjustment value of the reference array element, and the quantization accuracy of the target phase shifter corresponding to the reference array element.

7. An electronic device, characterized in that: include: A processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor executes the machine-readable instructions to perform the steps of the method for adjusting the pointing of a phased array generated beam as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for adjusting the direction of a phased array generated beam as claimed in any one of claims 1 to 5 are executed.

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