A method for correcting phase detection errors in a compact field quiet zone and related equipment

Abstract

The present invention provides a method and related equipment for correcting phase detection errors in a compact field quiet zone, and relates to the field of compact field detection technology. The present invention directly obtains measured quiet zone phase distribution data detected by a compact field quiet zone detection system for the same test signal at at least one probe symmetrical point group within the probe motion scanning plane, and calculates the scanning frame position deviations corresponding to each of the probe symmetrical point groups based on the principle of symmetrical detection phase consistency, performing mathematical statistical analysis to determine the scanning frame assembly error of the compact field quiet zone detection system for correction and perform compensation correction. This method, while maintaining the original composition of the compact field quiet zone detection system, utilizes the characteristic that phase error takes effect in real time as the detection system moves, achieves a fast and low-cost automatic calibration and compensation effect for detection errors, and improves the detection accuracy and precision of the compact field quiet zone performance detection operation.

Description

Technical Field

[0001] The present invention relates to the technical field of compact range detection, and in particular to a method for correcting phase detection errors in a compact range quiet zone and related equipment. Background Art

[0002] With the continuous development of science and technology, the compact range technology has attracted widespread attention from the antenna or radar related industries because it can use precise reflecting surfaces (such as rotating paraboloids) to correct the spherical waves emitted by the feed antenna into plane waves in a close-range quiet zone, thereby achieving far-field measurement effects of antenna parameters or radar target scattering characteristics at close range.

[0003] It's worth noting that during the compact range quiet zone performance test, system deployment errors in the compact range quiet zone detection system can cause quiet zone phase detection deviation. This deviation can gradually increase with increasing test signal frequency, exceeding the compact range's permissible performance range and severely distorting the final quiet zone phase detection results. Therefore, eliminating quiet zone phase detection errors during the quiet zone phase detection process is a critical technical issue that needs to be addressed in the current use of compact range technology. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a method for correcting phase detection errors in a compact range quiet zone, a compact range quiet zone detection system, and a readable storage medium. These methods can, while maintaining the original composition of the compact range quiet zone detection system, utilize the characteristic that the phase error takes effect in real time as the detection system moves, automatically separate the quiet zone phase detection error caused by system deployment error from the measured quiet zone phase distribution data, and perform compensation correction, so as to achieve a fast and low-cost automatic calibration and compensation effect for the detection error, thereby effectively improving the detection accuracy and detection precision of the compact range quiet zone performance detection operation.

[0005] In order to achieve the above objectives, the technical solutions adopted in the embodiments of the present invention are as follows:

[0006] In a first aspect, the present invention provides a method for correcting phase detection errors in a compact field quiet zone, the method comprising:

[0007] Obtaining measured quiet zone phase distribution data detected by the compact range quiet zone detection system to be corrected for the same test signal at at least one probe symmetrical point group within a probe motion scanning plane, wherein the polar coordinate positions of the two probe distribution points included in each probe symmetrical point group within the probe motion scanning plane are symmetrical about the center of the polar position;

[0008] For each probe symmetrical point group, based on the measured quiet zone phase distribution data of the two probe distribution points in the probe symmetrical point group, the scanning frame position deviation corresponding to the probe symmetrical point group is calculated based on the principle of symmetrical detection phase consistency;

[0009] Performing mathematical statistical analysis on the scanning frame position deviations corresponding to all the probe symmetrical point groups to obtain the scanning frame assembly error of the compact field quiet zone detection system to be corrected;

[0010] The compact field quiet zone detection system to be corrected is compensated and corrected according to the scanning frame assembly error.

[0011] In an optional embodiment, for each probe symmetrical point group, the step of calculating the scanning frame position deviation corresponding to the probe symmetrical point group based on the principle of symmetrical detection phase consistency includes:

[0012] Calculate the phase difference data between the measured quiet zone phase distribution data of two probe distribution points in the probe symmetrical point group;

[0013] According to the first correlation between the scanning frame position deviation, the signal wavelength of the test signal and the first quiet zone phase detection deviation, the scanning frame position deviation is solved based on the phase difference data to obtain the scanning frame position deviation corresponding to the probe symmetrical point group.

[0014] In an optional embodiment, the first correlation relationship among the scanning frame position deviation, the signal wavelength of the test signal, and the first quiet zone phase detection deviation is expressed by the following formula:

[0015] ;

[0016] in, It is used to indicate the polar diameter of any probe distribution point within the probe motion scanning plane. Used to indicate the position deviation of the scanning frame at the probe distribution point. It is used to indicate the first quiet zone phase detection deviation caused by the scanning frame position deviation of the probe distribution point during the quiet zone phase detection process. Used to represent the signal wavelength of the test signal.

[0017] In an optional embodiment, for any probe symmetric point group, the scanning frame position deviation corresponding to the probe symmetric point group is calculated using the following equation:

[0018] ;

[0019] in, It is used to represent the polar diameter of the first probe distribution point in the probe symmetrical point group within the probe motion scanning plane. It is used to represent the polar diameter of the second probe distribution point in the probe symmetrical point group within the probe motion scanning plane. It is used to indicate the polar angle of the first probe distribution point in the probe motion scanning plane, It is used to indicate the polar angle of the second probe distribution point in the probe motion scanning plane. used to represent the measured quiet zone phase distribution data of the first probe distribution points, Used to represent the measured quiet zone phase distribution data of the second probe distribution points, It is used to indicate the position deviation of the scanning frame corresponding to the symmetrical point group of the probe. is used to represent the signal wavelength of the test signal, wherein , .

[0020] In an optional embodiment, the step of performing mathematical statistical analysis on the scanning frame position deviations corresponding to all probe symmetrical point groups to obtain the scanning frame assembly error of the compact field quiet zone detection system to be corrected includes:

[0021] Classifying all probe symmetrical point groups by scanning section, and performing a weighted average calculation on the scanning frame position deviations of all probe symmetrical point groups belonging to the same scanning section, to obtain a scanning frame assembly error fitting value of at least one scanning section, wherein each scanning section is perpendicular to the probe motion scanning plane;

[0022] An arithmetic average operation is performed on the scanning frame assembly error fitting values ​​of all scanning sections to obtain the scanning frame assembly error of the compact range quiet zone detection system to be corrected.

[0023] In an optional embodiment, the method for correcting the phase detection error in the compact field quiet zone further includes:

[0024] Acquire actual quiet zone phase distribution data detected by the compact range quiet zone detection system to be corrected for the scanning frame assembly error at multiple detection points in the quiet zone phase detection plane for the test signal;

[0025] Based on the off-axis deviation and rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane, and a second correlation between the signal wavelength of the test signal and the second quiet zone phase detection deviation, and based on actual quiet zone phase distribution data of each of the plurality of detection points, with the goal of minimizing quiet zone phase detection noise associated with the second quiet zone phase detection deviation, the off-axis deviation and rolling deviation of the detection plane of the compact range quiet zone detection system to be corrected are calculated;

[0026] The compact range quiet zone detection system to be corrected is compensated and corrected according to the off-axis deviation of the detection plane and the rolling deviation of the detection plane.

[0027] In an optional embodiment, a second correlation relationship between the off-axis deviation and rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane, the signal wavelength of the test signal, and the second quiet zone phase detection deviation is expressed by the following equation:

[0028] ;

[0029] in, It is used to represent the polar radius of the probe distribution points mapped by any detection point in the probe motion scanning plane. It is used to represent the polar angle of the probe distribution point mapped by the detection point in the probe motion scanning plane. It is used to represent the horizontal coordinate value of the probe distribution point mapped by the detection point in the two-dimensional coordinate system. It is used to represent the vertical coordinate value of the probe distribution point mapped by the detection point in the two-dimensional coordinate system. It is used to indicate the off-axis deviation of the quiet zone phase detection plane relative to the parallel wave equiphase plane, It is used to indicate the rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane. It is used to represent the second quiet zone phase detection deviation caused by the off-axis deviation and the rolling deviation at the probe distribution point mapped by the detection point. Used to represent the signal wavelength of the test signal.

[0030] In an optional implementation manner, the quiet zone phase detection noise associated with the second quiet zone phase detection deviation is expressed using the following equation:

[0031] ;

[0032] in, Used to indicate the The polar radius of the probe distribution points mapped by each detection point in the probe motion scanning plane, Used to indicate the The polar angle of the probe distribution points mapped by each detection point in the probe motion scanning plane, Used to indicate the The horizontal coordinate value of the probe distribution point mapped by each detection point in the two-dimensional coordinate system, Used to indicate the The vertical coordinate value of the probe distribution point mapped by each detection point in the two-dimensional coordinate system, It is used to indicate the off-axis deviation of the quiet zone phase detection plane relative to the parallel wave equiphase plane, It is used to represent the rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane, Used to indicate the The actual quiet zone phase distribution data of each detection point, used to represent the signal wavelength of the test signal, is a constant, used to represent the quiet zone phase detection noise associated with the second quiet zone phase detection deviation, Used to indicate the total number of detection points.

[0033] In a second aspect, the present invention provides a compact range quiet zone detection system, comprising a compact range turntable, a scanning gantry, a probe antenna, and a vector network analyzer, wherein the scanning gantry is mounted on a polarization disk surface of the compact range turntable, and the probe antenna is mounted on a scanning working surface of the scanning gantry.

[0034] The vector network analyzer is electrically connected to the compact range turntable and the scanning gantry, respectively, and is used to control the compact range turntable to drive the scanning gantry to rotate, and / or control the scanning gantry to adjust the detection position of the probe antenna on the scanning working surface. The vector network analyzer can send a test signal to the compact range reflective surface via a feed antenna, so that the compact range reflective surface reflects the test signal to form a test quiet zone, and the probe antenna collects the plane wave signal from the test quiet zone.

[0035] The vector network analyzer is also electrically connected to the probe antenna, and is used to receive the plane wave signal collected by the probe antenna, and detect the quiet zone phase distribution data of the test signal based on the plane wave signal;

[0036] The vector network analyzer further stores a computer program and can run the computer program to implement the compact range quiet zone phase detection error correction method described in any one of the aforementioned embodiments.

[0037] In a third aspect, the present invention provides a readable storage medium having a computer program stored thereon. When the computer program is executed by a compact field quiet zone detection system, the method for correcting the phase detection error in the compact field quiet zone described in any one of the aforementioned embodiments is implemented.

[0038] In this case, the beneficial effects of the embodiments of the present invention may include the following:

[0039] The present invention directly obtains measured quiet zone phase distribution data detected for the same test signal at at least one symmetrical probe point group within a probe motion scanning plane for a compact range quiet zone detection system to be corrected. For each symmetrical probe point group, the gantry position deviation corresponding to the symmetrical probe point group is calculated based on the principle of symmetrical detection phase consistency, based on the measured quiet zone phase distribution data of two probe distribution points in the symmetrical probe point group. Mathematical statistical analysis is then performed on the gantry position deviations of all symmetrical probe point groups to determine and compensate for gantry assembly errors in the compact range quiet zone detection system to be corrected. While maintaining the original composition of the compact range quiet zone detection system, the present invention utilizes the characteristic that phase errors take effect in real time with the detection system's motion to automatically separate quiet zone phase detection errors caused by system deployment errors (including gantry assembly errors) from the measured quiet zone phase distribution data for compensation. This achieves rapid and low-cost automatic calibration and compensation of detection errors, and improves the accuracy and precision of compact range quiet zone performance testing.

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A schematic diagram illustrating deployment errors in a compact range quiet zone detection system according to an embodiment of the present invention;

[0043] Figure 2 for Figure 1 Schematic diagram of the probe motion scanning plane of the middle probe antenna on the scanning frame;

[0044] Figure 3 This is a flow chart of a method for correcting phase detection errors in a compact field quiet zone according to an embodiment of the present invention;

[0045] Figure 4 Schematic diagram of the distribution of the scanning frame position deviation of any probe symmetrical point group on the 90° (270°) test section;

[0046] Figure 5 A second flow chart of a method for correcting phase detection errors in a compact field quiet zone according to an embodiment of the present invention;

[0047] Figure 6 A schematic diagram of the quiet zone phase distribution of a 90 GHz test signal in a compact range quiet zone detection system provided by an embodiment of the present invention before phase detection error correction;

[0048] Figure 7 A schematic diagram of the quiet zone phase distribution of a 90 GHz test signal in a compact range quiet zone detection system provided by an embodiment of the present invention after phase detection error correction.

[0049] Icons: 10-Compact range quiet zone detection system; 11-Vector network analyzer; 12-Compact range turntable; 13-Scanning frame; 14-Probe antenna. DETAILED DESCRIPTION

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0053] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when in use, or are the orientation or position relationship commonly understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] In addition, in the description of the present invention, it is understood that relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Through painstaking research, the inventors discovered that the existing quiet zone phase detection error elimination solution mainly measures and compensates for the scanning frame installation position error and phase detection plane position error by adding additional position measurement instruments (such as laser trackers) to the original composition of the compact field quiet zone detection system. However, it is worth noting that the cost of the position measurement instrument is relatively high, and the operation complexity and error detection time during use are both relatively high. At the same time, the existence of the position measurement instrument itself will also introduce new errors to the compact field quiet zone detection system, making it difficult to achieve high-precision compact field quiet zone performance detection results.

[0057] In this context, to address the aforementioned issues, embodiments of the present invention provide a method for correcting phase detection errors in a compact quiet zone, a compact quiet zone detection system, and a readable storage medium. While maintaining the original components of the compact quiet zone detection system, these methods utilize the characteristic that phase errors take effect in real time as the detection system moves. These methods automatically separate quiet zone phase detection errors caused by system deployment errors (including scanning frame assembly (installation position) errors and axial errors in the phase detection plane) from measured quiet zone phase distribution data and perform compensation correction. This achieves rapid and low-cost automatic calibration and compensation of detection errors, thereby effectively improving the detection accuracy and precision of compact quiet zone performance testing operations.

[0058] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0059] Please refer to Figure 1 and Figure 2 ,in Figure 1 1 is a schematic diagram of deployment error generation of the compact range quiet zone detection system 10 provided by an embodiment of the present invention. Figure 2 yes Figure 1 Schematic diagram of the probe motion scanning plane of the probe antenna 14 on the scanning gantry 13. In an embodiment of the present invention, the compact range quiet zone detection system 10 may include a vector network analyzer 11, a compact range turntable 12, a scanning gantry 13, and a probe antenna 14, wherein the scanning gantry 13 is mounted on the polarization disk of the compact range turntable 12, and the probe antenna 14 is mounted on the scanning working surface of the scanning gantry 13. The polarization disk and the scanning working surface both face the compact range reflective surface, and the probe antenna 14 also faces the compact range reflective surface.

[0060] In an embodiment of the present invention, the vector network analyzer 11 is electrically connected to the compact range turntable 12 and the scanning gantry 13, respectively, and is configured to control the compact range turntable 12 to drive the scanning gantry 13 to rotate, and / or control the scanning gantry 13 to adjust the detection position of the probe antenna 14 on the scanning working surface. The vector network analyzer 11 can send a test signal of any signal frequency (e.g., 90 GHz) to the compact range reflecting surface via a feed antenna, causing the compact range reflecting surface to reflect and form a test quiet zone. The probe antenna 14 then collects plane wave signals from the test quiet zone.

[0061] During this process, the polarization mode of the probe antenna 14 is consistent with the polarization mode of the feed antenna; the scanning frame 13 is a long strip structure, and the scanning frame 13 can drive the probe antenna 14 to move along the length extension direction of the scanning frame 13 through a slider to adjust the detection position of the probe antenna 14 on the scanning working surface; for the probe antenna 14, a polar coordinate system can be used to describe the probe distribution point position within the probe motion scanning plane where the scanning working surface is located. The pole position of the polar coordinate system is represented by the center position of the scanning working surface. The reachable position of the scanning frame 13 driven by the compact field turntable 12 can be expressed as follows Figure 2 The four orange strip structure positions are characterized, wherein each orange strip structure position corresponds to two polar angles in the polar coordinate system (the angle difference between the two polar angles is 180°), and if the maximum moving stroke of the probe antenna 14 on the scanning frame 13 is Represented by, and the polar diameter at the pole position is set to 0, then the polar diameter range of any probe distribution point in the polar coordinate system can be expressed as , the polar angle range of any probe distribution point in the polar coordinate system can be expressed as .

[0062] In the embodiment of the present invention, the vector network analyzer 11 is further electrically connected to the probe antenna 14 for receiving the plane wave signal collected by the probe antenna 14 and detecting the quiet zone phase distribution data of the test signal based on the plane wave signal.

[0063] In the embodiment of the present invention, the probe motion scanning plane of the compact range quiet zone detection system 10 in the ideal deployment state is parallel to the polarization disk surface of the compact range turntable 12, and the quiet zone phase detection plane of the compact range quiet zone detection system 10 in the ideal deployment state is consistent with the plane wave isophase plane. However, it is worth noting that when the scanning frame 13 is installed on the polarization disk surface, the installation of the scanning frame 13 may often be erroneous due to the fixture design or other factors, causing the probe motion scanning plane to deflect relative to the polarization disk surface, resulting in a scanning frame position deviation (i.e., Figure 1 in ), wherein the scanning frame position deviation is used to characterize the scanning frame assembly error; when the scanning frame 13 is installed on the polarization disk, the gravity of the scanning frame 13 and the probe antenna 14 will also cause the compact field turntable 12 to rotate in pitch and azimuth, thereby causing the quiet zone phase detection plane to rotate relative to the plane wave isophase plane axis direction (i.e. Figure 1 The positive direction of the Z axis of the Cartesian three-dimensional coordinate system XYZ in the image is deflected (i.e., polarized rotation) and forms an off-axis deviation (i.e., Figure 1 in ), and causes the quiet zone phase detection plane to rotate around the plane wave isophase plane axis to form a rolling deviation (i.e. Figure 1 in ), at this time, the off-axis deviation and the rolling deviation are combined to represent the phase detection plane position error.

[0064] Therefore, for the measured quiet zone phase distribution data at any probe distribution point within the probe motion scanning plane of the compact range quiet zone detection system 10, the numerical relationship between the measured quiet zone phase distribution data and the ideal quiet zone phase distribution data can be expressed by the following formula:

[0065] ;

[0066] in, It is used to indicate the polar diameter of any probe distribution point within the probe motion scanning plane. Used to represent the measured quiet zone phase distribution data of the probe distribution points, It is used to indicate the first quiet zone phase detection deviation caused by the scanning frame position deviation at the probe distribution point. It is used to indicate the second quiet zone phase detection deviation induced by the off-axis deviation and the rolling deviation at the probe distribution point.

[0067] In an embodiment of the present invention, the vector network analyzer 11 may pre-store a specific computer program related to the compact range quiet zone phase detection error correction function. By running this specific computer program, while maintaining the original components of the compact range quiet zone detection system 10, and without the need for additional costly position measurement instruments, the vector network analyzer 11 can directly utilize the characteristic that phase errors take effect in real time as the detection system moves. Quiet zone phase detection errors caused by system deployment errors (including gantry assembly errors and phase detection plane position errors) can be automatically separated from the measured quiet zone phase distribution data of the compact range quiet zone detection system 10 and compensated for. This achieves a fast and low-cost automatic calibration and compensation effect for detection errors, thereby effectively improving the detection accuracy and precision of the compact range quiet zone performance testing operation.

[0068] It is understandable that Figure 1 The block diagram shown is only a schematic diagram of the system composition of the compact field quiet zone detection system 10. The compact field quiet zone detection system 10 may also include a comparison Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown. Figure 1 Each component shown in the figure can be implemented by hardware, software or a combination thereof.

[0069] In the present invention, to ensure that the compact range quiet zone detection system 10 can maintain its original composition and, based on measured quiet zone phase distribution data, automatically and rapidly separate and compensate for quiet zone phase detection errors caused by system deployment errors (including gantry assembly errors and phase detection plane position errors), thereby achieving rapid and low-cost automatic calibration and compensation of detection errors and improving the accuracy and precision of compact range quiet zone performance testing operations, an embodiment of the present invention provides a compact range quiet zone phase detection error correction method applied to the compact range quiet zone detection system 10 to achieve the aforementioned objectives. The compact range quiet zone phase detection error correction method provided by the present invention is described in detail below.

[0070] Please refer to Figure 3 , Figure 3 This is a flow chart of a method for correcting phase detection errors in a compact quiet zone according to an embodiment of the present invention. In an embodiment of the present invention, the method for correcting phase detection errors in a compact quiet zone may include steps 210 to 240.

[0071] Step 210 : obtaining actual quiet zone phase distribution data detected by the compact field quiet zone detection system to be corrected at at least one probe symmetrical point group within the probe motion scanning plane for the same test signal.

[0072] In this embodiment, the two probe distribution points included in each probe symmetrical point group are each symmetrical about the polar coordinate position of the polar point position in the probe motion scanning plane. Figure 2 and Figure 4 As shown in the figure, for example, a test section with a polar angle Phi of 90° in polar coordinates (i.e., a plane perpendicular to the probe motion scanning plane and passing through the pole position) and a test section with a polar angle Phi of 270° in polar coordinates are essentially the same scanning section. The maximum movement range of the scanning frame 13 in the test section with a polar angle Phi of 90° or 270° is the actual distance between point A and point B, where Figure 4 The red filled triangle in the left sub-graph represents a probe distribution point with a polar angle Phi of 90°. Figure 4 The red filled triangle in the right sub-graph of the diagram represents another probe distribution point with a polar angle Phi of 270°. Figure 2 The center position of the scanning frame 13 is used as the pole position of the polar coordinate system. Then, one of the polar diameters of the two probe distribution points is positive and the other polar diameter is negative, but the absolute values ​​of the polar diameters of the two probe distribution points are the same. At this time, the two probe distribution points can form a probe symmetrical point group. The polar coordinate positions of the two probe distribution points in the polar coordinate system of the probe motion scanning plane are symmetrical about the center of the pole position (that is, the difference in the polar angles of the two probe distribution points is 180°, and the polar diameters of the two probe distribution points are opposite to each other). In the test section with a polar angle Phi of 90° or 270°, the scanning frame position deviation Always working.

[0073] Step 220 , for each probe symmetrical point group, calculate the scanning frame position deviation corresponding to the probe symmetrical point group based on the principle of symmetrical detection phase consistency according to the measured quiet zone phase distribution data of the two probe distribution points in the probe symmetrical point group.

[0074] In this embodiment, the symmetrical detection phase consistency principle can be described as "the ideal quiet zone phase distribution data of the two probe distribution points in the same probe symmetrical point group are consistent, and the second quiet zone phase detection deviation of the two probe distribution points in the same probe symmetrical point group are consistent." The first correlation relationship between the scanning frame position deviation corresponding to a single probe distribution point, the signal wavelength of the test signal, and the first quiet zone phase detection deviation can be expressed by the following formula:

[0075] ;

[0076] in, It is used to indicate the polar diameter of any probe distribution point within the probe motion scanning plane. Used to indicate the position deviation of the scanning frame at the probe distribution point. It is used to indicate the first quiet zone phase detection deviation caused by the scanning frame position deviation of the probe distribution point during the quiet zone phase detection process. Used to represent the signal wavelength of the test signal.

[0077] Therefore, for any probe symmetrical point group, the first quiet zone phase detection deviations of the two probe distribution points included in the probe symmetrical point group are opposite.

[0078] On this basis, for each probe symmetrical point group, the step of "calculating the scanning frame position deviation corresponding to the probe symmetrical point group based on the principle of symmetrical detection phase consistency" in step 220 may include:

[0079] Calculate the phase difference data between the measured quiet zone phase distribution data of two probe distribution points in the probe symmetrical point group;

[0080] According to the first correlation between the scanning frame position deviation, the signal wavelength of the test signal and the first quiet zone phase detection deviation, the scanning frame position deviation is solved based on the phase difference data to obtain the scanning frame position deviation corresponding to the probe symmetrical point group.

[0081] In this process, for any probe symmetric point group, the scanning frame position deviation corresponding to the probe symmetric point group is calculated using the following equation:

[0082] ;

[0083] in, It is used to represent the polar diameter of the first probe distribution point in the probe symmetrical point group within the probe motion scanning plane. It is used to represent the polar diameter of the second probe distribution point in the probe symmetrical point group within the probe motion scanning plane. It is used to indicate the polar angle of the first probe distribution point in the probe motion scanning plane, It is used to indicate the polar angle of the second probe distribution point in the probe motion scanning plane. used to represent the measured quiet zone phase distribution data of the first probe distribution points, Used to represent the measured quiet zone phase distribution data of the second probe distribution points, It is used to indicate the position deviation of the scanning frame corresponding to the symmetrical point group of the probe. is used to represent the signal wavelength of the test signal, wherein , .

[0084] Step 230 , performing mathematical statistical analysis on the scanning frame position deviations corresponding to all the probe symmetrical point groups, and obtaining the scanning frame assembly error of the compact field quiet zone detection system to be corrected.

[0085] In this embodiment, when step 210 acquires only measured quiet zone phase distribution data for one symmetrical probe point group, that symmetrical probe point group can be directly used as the gantry assembly error for the compact field quiet zone detection system to be corrected. However, when step S210 acquires measured quiet zone phase distribution data for multiple symmetrical probe point groups, data fitting can be performed on the gantry position deviations of each of the multiple symmetrical probe point groups to determine the gantry assembly error for the compact field quiet zone detection system to be corrected, thereby reducing random errors and improving the effectiveness of subsequent phase detection error correction. The data fitting operation can include, but is not limited to, linear regression, arithmetic averaging, and weighted averaging.

[0086] In one implementation of this embodiment, when step S210 obtains measured quiet zone phase distribution data of multiple probe symmetrical point groups, step 230 is implemented collaboratively using an arithmetic average operation and a weighted average operation. In this case, step 230 may include:

[0087] Classifying all probe symmetrical point groups by scanning section, and performing a weighted average calculation on the scanning frame position deviations of all probe symmetrical point groups belonging to the same scanning section, to obtain a scanning frame assembly error fitting value of at least one scanning section, wherein each scanning section is perpendicular to the probe motion scanning plane and passes through a pole position;

[0088] An arithmetic average operation is performed on the scanning frame assembly error fitting values ​​of all scanning sections to obtain the scanning frame assembly error of the compact range quiet zone detection system to be corrected.

[0089] The weights of multiple symmetrical probe point groups within the same scanning section can be the same or different during the weighted averaging operation. For example, if the weights of multiple symmetrical probe point groups within the same scanning section remain consistent, the corresponding weighted averaging operation can be considered an arithmetic average operation. The further away from the extreme point position a symmetrical probe point group within the same scanning section is from, the greater the weight of the corresponding symmetrical probe point group.

[0090] Step 240 : Compensate and correct the compact field quiet zone detection system to be corrected according to the scanning frame assembly error.

[0091] In this embodiment, when the compact field quiet zone detection system to be corrected performs compensation correction according to the solved gantry assembly error, the gantry assembly error may be substituted into the first association relationship to solve a first quiet zone phase detection deviation caused by the gantry assembly error during the quiet zone phase detection process. Then, a data compensation operation for the compact field quiet zone detection system to be corrected is completed by subtracting the measured quiet zone phase distribution data of the compact field quiet zone detection system to be corrected from the first quiet zone phase detection deviation. Alternatively, the physical compensation operation for the compact field quiet zone detection system to be corrected may be completed by driving the vector network analyzer 11 in the compact field quiet zone detection system to be corrected to control the corresponding gantry 13 to adjust its relative position with the polarization disk to eliminate the gantry assembly error.

[0092] During this process, it can be understood that in order to further improve the phase detection error correction effect, after executing steps 210 to 230 for a test signal of a certain signal frequency to determine the gantry assembly error of the compact range quiet zone detection system to be corrected for the signal frequency, steps 210 to 230 can be executed again for another signal frequency to determine the gantry assembly error of the compact range quiet zone detection system to be corrected for the other signal frequency. Then, by performing an arithmetic average operation on the gantry assembly errors of different signal frequencies, a comprehensive gantry assembly error of the compact range quiet zone detection system to be corrected during the quiet zone phase detection process can be obtained, so that compensation correction of the compact range quiet zone detection system to be corrected can be performed based on the comprehensive gantry assembly error.

[0093] Therefore, the present invention can automatically and quickly separate the quiet zone phase detection error caused by the scanning frame assembly error based on the measured quiet zone phase distribution data by executing the above steps 210 to 240 while maintaining the original composition of the compact range quiet zone detection system 10, and perform compensation correction to achieve a fast and low-cost automatic calibration and compensation effect for the detection error without the need for additional high-cost position measurement instruments, thereby effectively improving the detection accuracy and detection precision of the compact range quiet zone performance detection operation.

[0094] Alternatively, see Figure 5 , Figure 5 This is the second flow chart of the method for correcting phase detection error in the compact field quiet zone provided by the embodiment of the present invention. Figure 3 Compared with the compact quiet zone phase detection error correction method shown in the figure, Figure 5The illustrated method for correcting phase detection errors in the compact range quiet zone may further include steps 250 to 270. After completing the scanning frame assembly error compensation operation for the compact range quiet zone detection system 10, the method automatically and rapidly separates the quiet zone phase detection error caused by the phase detection plane position error (including the off-axis deviation and rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane) from the actual quiet zone phase distribution data detected by the compact range quiet zone detection system 10, and performs compensation correction. This achieves a rapid and low-cost automatic calibration and compensation effect for detection errors, and improves the detection accuracy and precision of the compact range quiet zone performance detection operation.

[0095] Step 250 : obtaining actual quiet zone phase distribution data detected by the compact range quiet zone detection system to be corrected for the scanning frame assembly error at multiple detection points in the quiet zone phase detection plane for the test signal.

[0096] In this embodiment, the test signal in step S250 maintains the same signal frequency as the test signal in step 210; the actual quiet zone phase distribution data detected by any detection point for the test signal can be regarded as the result of subtracting the first quiet zone phase detection deviation adapted to the test signal from the measured quiet zone phase distribution data for the test signal at the detection point.

[0097] Step S260 , based on the off-axis deviation and rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane, and the second correlation between the signal wavelength of the test signal and the second quiet zone phase detection deviation, and based on actual quiet zone phase distribution data of each of the multiple detection points, with the goal of minimizing the quiet zone phase detection noise associated with the second quiet zone phase detection deviation, the off-axis deviation and rolling deviation of the detection plane of the compact range quiet zone detection system to be corrected are calculated.

[0098] In this embodiment, the second correlation relationship between the off-axis deviation and rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane, the signal wavelength of the test signal, and the second quiet zone phase detection deviation is expressed by the following equation:

[0099] ;

[0100] in, It is used to represent the polar radius of the probe distribution points mapped by any detection point in the probe motion scanning plane. It is used to represent the polar angle of the probe distribution point mapped by the detection point in the probe motion scanning plane. It is used to represent the horizontal coordinate value of the probe distribution point mapped by the detection point in the two-dimensional coordinate system. It is used to represent the vertical coordinate value of the probe distribution point mapped by the detection point in the two-dimensional coordinate system. It is used to indicate the off-axis deviation of the quiet zone phase detection plane relative to the parallel wave equiphase plane, It is used to indicate the rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane. It is used to represent the second quiet zone phase detection deviation caused by the off-axis deviation and the rolling deviation at the probe distribution point mapped by the detection point. The wavelength of the test signal is used to represent the signal. The origin of the two-dimensional coordinate system is the same as the pole of the polar coordinate system.

[0101] The quiet zone phase detection noise associated with the second quiet zone phase detection deviation is expressed by the following equation:

[0102] ;

[0103] in, Used to indicate the The polar radius of the probe distribution points mapped by each detection point in the probe motion scanning plane, Used to indicate the The polar angle of the probe distribution points mapped by each detection point in the probe motion scanning plane, Used to indicate the The horizontal coordinate value of the probe distribution point mapped by each detection point in the two-dimensional coordinate system, Used to indicate the The vertical coordinate value of the probe distribution point mapped by each detection point in the two-dimensional coordinate system, It is used to indicate the off-axis deviation of the quiet zone phase detection plane relative to the parallel wave equiphase plane, It is used to indicate the rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane. Used to indicate the The actual quiet zone phase distribution data of each detection point, used to represent the signal wavelength of the test signal, is a constant, used to represent the quiet zone phase detection noise associated with the second quiet zone phase detection deviation, It is used to indicate the total number of detection points. The origin of the two-dimensional coordinate system is the same as the pole of the polar coordinate system.

[0104] Therefore, based on the above-mentioned quiet zone phase detection noise equation, the present invention can solve the off-axis deviation and the rolling deviation of the detection plane during the quiet zone phase detection process of the compact field quiet zone detection system to be corrected, that is, obtain the phase detection plane position error of the compact field quiet zone detection system to be corrected.

[0105] Step 270 : Compensate and correct the compact field quiet zone detection system to be corrected according to the off-axis deviation and the rolling deviation of the detection plane.

[0106] In this embodiment, when the compact staging area quiet zone detection system to be corrected performs compensation correction based on the calculated off-axis deviation and roll deviation of the detection plane, the off-axis deviation and roll deviation of the detection plane may be substituted into the aforementioned second association relationship to calculate a second quiet zone phase detection deviation generated during the corresponding quiet zone phase detection process. Then, the data compensation operation for the compact staging area quiet zone detection system to be corrected is completed by subtracting the actual quiet zone phase distribution data of the compact staging area quiet zone detection system from the second quiet zone phase detection deviation. Alternatively, the physical compensation operation for the compact staging area quiet zone detection system to be corrected may be completed by driving the vector network analyzer 11 in the compact staging area quiet zone detection system to control the corresponding compact staging area turntable 12 to adjust its turntable off-axis angle and turntable roll angle to eliminate the phase detection plane position error (including the off-axis deviation and roll deviation of the detection plane), thereby completing the physical compensation operation for the compact staging area quiet zone detection system to be corrected.

[0107] Therefore, the present invention can automatically and quickly separate the quiet zone phase detection error caused by the phase detection plane position error (including the off-axis deviation and rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane) from the actual quiet zone phase distribution data detected by the compact range quiet zone detection system 10 by executing steps 250 to 270 above, based on the completion of the scanning frame assembly error compensation operation. This compensates and corrects the quiet zone phase detection error, thereby achieving a fast and low-cost automatic calibration and compensation effect for the detection error without the need for additional costly position measurement instruments, thereby effectively improving the detection accuracy and precision of the compact range quiet zone performance detection operation.

[0108] The present invention can continuously execute steps 210 to 240 and steps 250 to 270 on the compact field quiet zone detection system 10 to be corrected. While maintaining the original composition of the detection system, the present invention utilizes the characteristic that phase errors take effect in real time as the detection system moves, automatically separating the quiet zone phase detection errors caused by different deployment error sources (including scanning frame assembly errors and phase detection plane position errors) from the measured quiet zone phase distribution data, and performing compensation correction. This achieves a fast and low-cost automatic calibration and compensation effect for detection errors.

[0109] by Figure 6 and Figure 7 The diagram of the quiet zone phase distribution of the compact field quiet zone detection system 10 before and after the phase detection error correction is shown as an example: before the phase detection error correction, the phase fluctuation of the compact field quiet zone detected for the 90 GHz test signal in the horizontal polarization mode of the antenna exceeds 40°, and the compact field quiet zone phase at the same polar angle Phi state is linearly related to the polar radius of the probe distribution point, corresponding to the compact field quiet zone detection system 10 having obvious phase detection distortion; according to Figure 6 The phase detection values ​​of each probe distribution point in the test section with the polar angle Phi=0° and Phi=180° are used to calculate the corresponding scanning frame assembly error using the above steps 220 and 230. =0.05°, and then Figure 6 The phase detection values ​​of each probe distribution point in the test section with polar angles Phi = 0°, 45°, 90° and 135° are executed in step 240 to compensate for the scanning frame assembly error. Then, step 260 is executed for the compensated phase detection values ​​to determine the off-axis deviation of the corresponding detection plane. =0.12°, and the corresponding detection plane rolling deviation =90°, and finally the detection system is compensated according to the off-axis deviation and the rolling deviation of the detection plane. At this time, after the phase detection error is corrected, the compact field quiet zone phase fluctuation detected by the compact field quiet zone detection system 10 for the 90GHz test signal is within 10°. The compact field quiet zone phase at the same polar angle Phi state is no longer linearly related to the polar diameter of the probe distribution point, thereby eliminating the phase detection distortion generated by the corresponding compact field quiet zone detection system 10, and the actual compact field quiet zone phase fluctuation can be accurately obtained.

[0110] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions, and operations of the devices, methods, and computer program products according to the embodiments of the present invention. In this regard, each box in the flowchart or block diagram can represent a module, a program segment, or a portion of code, and the module, program segment, or a portion of code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the boxes can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, as well as the combination of boxes in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified functions or actions, or can be implemented using a combination of dedicated hardware and computer instructions.

[0111] Furthermore, the functional modules in various embodiments of the present invention can be integrated together to form a single component, each module can exist independently, or two or more modules can be integrated to form a single component. If the various functions provided by the present invention are implemented as software modules and sold or used as independent products, they can be stored in a storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product, stored in a storage medium, includes instructions for causing the compact field quiet zone detection system 10 to execute all or part of the steps of the method described in various embodiments of the present invention via a vector network analyzer 11. The aforementioned readable storage medium includes various media capable of storing program code, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0112] The above descriptions are merely various embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be readily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A method for correcting phase detection errors in a compact field quiet zone, characterized in that: The method for correcting phase detection errors in the compact field quiet zone comprises: Obtaining measured quiet zone phase distribution data detected by the compact range quiet zone detection system to be corrected for the same test signal at at least one probe symmetrical point group within a probe motion scanning plane, wherein the polar coordinate positions of the two probe distribution points included in each probe symmetrical point group within the probe motion scanning plane are symmetrical about the center of the polar position; For each probe symmetrical point group, based on the measured quiet zone phase distribution data of the two probe distribution points in the probe symmetrical point group, the scanning frame position deviation corresponding to the probe symmetrical point group is calculated based on the principle of symmetrical detection phase consistency; Performing mathematical statistical analysis on the scanning frame position deviations corresponding to all the probe symmetrical point groups to obtain the scanning frame assembly error of the compact field quiet zone detection system to be corrected; Compensating and correcting the compact field quiet zone detection system to be corrected according to the scanning frame assembly error; For any probe symmetric point group, the scanning frame position deviation corresponding to the probe symmetric point group is calculated using the following equation: ； in, It is used to represent the polar diameter of the first probe distribution point in the probe symmetrical point group within the probe motion scanning plane. It is used to represent the polar diameter of the second probe distribution point in the probe symmetrical point group within the probe motion scanning plane. It is used to indicate the polar angle of the first probe distribution point in the probe motion scanning plane, It is used to indicate the polar angle of the second probe distribution point in the probe motion scanning plane. used to represent the measured quiet zone phase distribution data of the first probe distribution points, Used to represent the measured quiet zone phase distribution data of the second probe distribution points, It is used to indicate the position deviation of the scanning frame corresponding to the symmetrical point group of the probe. is used to represent the signal wavelength of the test signal, wherein , .

2. The method for correcting phase detection errors in a compact field quiet zone according to claim 1, wherein: For each probe symmetrical point group, the step of calculating the scanning frame position deviation corresponding to the probe symmetrical point group based on the principle of symmetrical detection phase consistency includes: Calculate the phase difference data between the measured quiet zone phase distribution data of two probe distribution points in the probe symmetrical point group; According to the first correlation between the scanning frame position deviation, the signal wavelength of the test signal and the first quiet zone phase detection deviation, the scanning frame position deviation is solved based on the phase difference data to obtain the scanning frame position deviation corresponding to the probe symmetrical point group.

3. The method for correcting phase detection errors in a compact quiet zone according to claim 2, wherein: The first correlation relationship between the scanning frame position deviation, the signal wavelength of the test signal and the first quiet zone phase detection deviation is expressed by the following formula: ； in, It is used to indicate the polar diameter of any probe distribution point within the probe motion scanning plane. Used to indicate the position deviation of the scanning frame at the probe distribution point. It is used to indicate the first quiet zone phase detection deviation caused by the scanning frame position deviation of the probe distribution point during the quiet zone phase detection process. Used to represent the signal wavelength of the test signal.

4. The method for correcting phase detection errors in a compact quiet zone according to claim 1, wherein: The step of performing mathematical statistical analysis on the scanning frame position deviations corresponding to all the probe symmetrical point groups to obtain the scanning frame assembly error of the compact field quiet zone detection system to be corrected includes: Classifying all probe symmetrical point groups by scanning section, and performing a weighted average calculation on the scanning frame position deviations of all probe symmetrical point groups belonging to the same scanning section, to obtain a scanning frame assembly error fitting value of at least one scanning section, wherein each scanning section is perpendicular to the probe motion scanning plane; An arithmetic average operation is performed on the scanning frame assembly error fitting values ​​of all scanning sections to obtain the scanning frame assembly error of the compact range quiet zone detection system to be corrected.

5. The method for correcting phase detection errors in a compact field quiet zone according to any one of claims 1 to 4, characterized in that: The compact field quiet zone phase detection error correction method further includes: Acquire actual quiet zone phase distribution data detected by the compact range quiet zone detection system to be corrected for the scanning frame assembly error at multiple detection points in the quiet zone phase detection plane for the test signal; Based on the off-axis deviation and rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane, and a second correlation between the signal wavelength of the test signal and the second quiet zone phase detection deviation, and based on actual quiet zone phase distribution data of each of the plurality of detection points, with the goal of minimizing quiet zone phase detection noise associated with the second quiet zone phase detection deviation, the off-axis deviation and rolling deviation of the detection plane of the compact range quiet zone detection system to be corrected are calculated; The compact range quiet zone detection system to be corrected is compensated and corrected according to the off-axis deviation of the detection plane and the rolling deviation of the detection plane.

6. The method for correcting phase detection errors in a compact field quiet zone according to claim 5, characterized in that: The second correlation relationship between the off-axis deviation and rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane, the signal wavelength of the test signal, and the second quiet zone phase detection deviation is expressed by the following equation: ； in, It is used to represent the polar radius of the probe distribution points mapped by any detection point in the probe motion scanning plane. It is used to represent the polar angle of the probe distribution point mapped by the detection point in the probe motion scanning plane. It is used to represent the horizontal coordinate value of the probe distribution point mapped by the detection point in the two-dimensional coordinate system. It is used to represent the vertical coordinate value of the probe distribution point mapped by the detection point in the two-dimensional coordinate system. It is used to indicate the off-axis deviation of the quiet zone phase detection plane relative to the parallel wave equiphase plane, It is used to indicate the rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane. It is used to represent the second quiet zone phase detection deviation caused by the off-axis deviation and the rolling deviation at the probe distribution point mapped by the detection point. Used to represent the signal wavelength of the test signal.

7. The method for correcting phase detection errors in a compact field quiet zone according to claim 5, wherein: The quiet zone phase detection noise associated with the second quiet zone phase detection deviation is expressed as follows: ； in, Used to indicate the The polar radius of the probe distribution points mapped by each detection point in the probe motion scanning plane, Used to indicate the The polar angle of the probe distribution points mapped by each detection point in the probe motion scanning plane, Used to indicate the The horizontal coordinate value of the probe distribution point mapped by each detection point in the two-dimensional coordinate system, Used to indicate the The vertical coordinate value of the probe distribution point mapped by each detection point in the two-dimensional coordinate system, It is used to indicate the off-axis deviation of the quiet zone phase detection plane relative to the parallel wave equiphase plane, It is used to represent the rolling deviation of the quiet zone phase detection plane relative to the parallel wave isophase plane, Used to indicate the The actual quiet zone phase distribution data of each detection point, used to represent the signal wavelength of the test signal, is a constant, used to represent the quiet zone phase detection noise associated with the second quiet zone phase detection deviation, Used to indicate the total number of detection points.

8. A compact field quiet zone detection system, characterized in that: The compact range quiet zone detection system includes a compact range turntable, a scanning frame, a probe antenna and a vector network analyzer, wherein the scanning frame is installed on the polarization disk surface of the compact range turntable, and the probe antenna is installed on the scanning working surface of the scanning frame; The vector network analyzer is electrically connected to the compact range turntable and the scanning gantry, respectively, and is used to control the compact range turntable to drive the scanning gantry to rotate, and / or control the scanning gantry to adjust the detection position of the probe antenna on the scanning working surface. The vector network analyzer can send a test signal to the compact range reflective surface via a feed antenna, so that the compact range reflective surface reflects the test signal to form a test quiet zone, and the probe antenna collects the plane wave signal from the test quiet zone. The vector network analyzer is also electrically connected to the probe antenna, and is used to receive the plane wave signal collected by the probe antenna, and detect the quiet zone phase distribution data of the test signal based on the plane wave signal; The vector network analyzer further stores a computer program and can run the computer program to implement the compact range quiet zone phase detection error correction method according to any one of claims 1 to 7.

9. A readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a compact field quiet zone detection system, the compact field quiet zone phase detection error correction method according to any one of claims 1 to 7 is implemented.

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