Reflecting surface torsion side tooth position and torsion degree detection method

Abstract

The embodiment of the invention relates to the technical field of retraction field measurement, in particular to a method for detecting the position of a torsion side tooth of a reflecting surface and the torsion degree of the torsion side tooth. The embodiment of the invention provides a reflecting surface torsion side tooth position and torsion degree detection method, which comprises the following steps: establishing a simulation model according to the requirements of an ideal compact range test environment; wherein the simulation model comprises a feed source and a reflecting surface; wherein the reflecting surface is a rotating paraboloid and comprises a main surface with a rectangular projection and side teeth distributed on the periphery of the main surface; simulation parameters of the simulation model are set, and the ideal position of the side tooth is set to be a zero position; acquiring test data of each upper edge tooth and each lower edge tooth at different angles to obtain a database; and debugging the reflecting surface on site according to the database. According to the scheme, the installation and adjustment cost can be reduced.

Description

Technical Field

[0001] The embodiment of the present invention relates to the technical field of indentation field measurement, and in particular to a method for detecting the position of torsion edge teeth of a reflecting surface and the degree of distortion thereof. Background Art

[0002] Since the emergence of compact field measurement technology in the 1960s and 1970s, it has gradually replaced the traditional far-field measurement method with its advantages such as measurement is not affected by weather and interference clutter, limited test site required, and good measurement consistency. It has become the main means of measuring the electromagnetic characteristics parameters of various scatterers and radiators.

[0003] The core component of the compact field is the reflector surface. The adjustment accuracy of the reflector surface directly affects the amplitude and phase quality of the compact field quiet zone. The adjustment of conventional reflectors mainly includes two steps, namely the main surface adjustment and the side tooth adjustment. Generally speaking, the main surface is not divided into blocks or has fewer blocks (the reflector surface within the 12m quiet zone is divided into no more than 4 blocks), and the difficulty of adjustment is relatively low; while each side tooth is usually connected to the adjacent main surface separately, and the number of side teeth ranges from 18 to 40. The adjustment conditions are complex and the adjustment is difficult. Any deviation caused by the side tooth adjustment will interfere with the reasonable distribution of the diffraction electric field at the edge of the reflector surface, thereby reducing the amplitude and phase quality of the quiet zone. Summary of the invention

[0004] The embodiments of the present invention provide a method, device, electronic device and storage medium for detecting the position and distortion degree of twisted edge teeth of a reflective surface, which can reduce the installation and adjustment cost.

[0005] In a first aspect, an embodiment of the present invention provides a method for detecting the position and degree of distortion of a torsion edge tooth of a reflecting surface, comprising:

[0006] According to the requirements of an ideal compact field test environment, a simulation model is established; wherein the simulation model includes a feed source and a reflection surface; wherein the reflection surface is a rotating parabola, including a main surface projected as a rectangle and side teeth distributed around the main surface;

[0007] Setting simulation parameters of the simulation model, and setting the ideal position of the edge tooth to be zero position;

[0008] Collect test data of each upper side tooth and lower side tooth at different angles to obtain a database;

[0009] The reflective surface is debugged on site according to the database.

[0010] In a second aspect, an embodiment of the present invention further provides a device for detecting the position and degree of twisting of a torsion edge tooth of a reflective surface, which is used to implement any of the above methods, and the device includes:

[0011] A modeling unit, used to establish a simulation model according to the requirements of an ideal compact field test environment; wherein the simulation model includes a feed source and a reflection surface; wherein the reflection surface is a rotating parabola, including a main surface projected as a rectangle and side teeth distributed around the main surface;

[0012] A setting unit, used to set simulation parameters of the simulation model and set the ideal position of the edge tooth to zero position;

[0013] A data acquisition unit is used to collect test data of each upper side tooth and each lower side tooth at different angles to obtain a database;

[0014] An adjustment unit is used to adjust the reflective surface on site according to the database.

[0015] In a third aspect, an embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the detection method described in any embodiment of this specification is implemented.

[0016] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed in a computer, the computer is caused to execute the detection method described in any embodiment of this specification.

[0017] The embodiment of the present invention provides a method, device, electronic device and storage medium for detecting the position and degree of twisting of the torsion edge teeth of a reflective surface. In order to effectively reduce the adverse effects of the edge teeth adjustment error on the amplitude and phase quality of the static zone, the torsion position and degree of twisting of the edge teeth are analyzed in combination with software simulation, thereby providing effective guidance for the edge teeth adjustment work. The position and degree of twisting of the torsion edge teeth are determined according to the amplitude and phase data measured in the static zone, thereby providing effective guidance for the edge teeth adjustment work, thereby reducing the labor cost and time cost of the edge teeth adjustment, while achieving the effect of improving the amplitude and phase quality of the static zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1a is a schematic diagram of a reflective surface structure provided by an embodiment of the present invention;

[0020] Figure 1b is a schematic diagram of a top view structure of a reflective surface provided by an embodiment of the present invention;

[0021] Figure 1c is a schematic diagram of a side view structure of a reflective surface provided by an embodiment of the present invention;

[0022] Figure 2a is the horizontal polarization amplitude of the vertical limit of the center of the quiet zone corresponding to the positive rotation of the center tooth of the upper side tooth at 6 GHz provided by an embodiment of the present invention;

[0023] Figure 2b is the vertical polarization amplitude of the vertical limit of the center of the quiet zone corresponding to the positive rotation of the center tooth of the upper side tooth at 6 GHz provided by an embodiment of the present invention;

[0024] Figure 3a It is the horizontal polarization amplitude of the vertical limit of the center of the quiet zone corresponding to the positive rotation of the upper tooth end point tooth at 6GHz provided by an embodiment of the present invention;

[0025] Figure 3b It is the vertical polarization amplitude of the vertical limit of the center of the quiet zone corresponding to the positive rotation of the upper tooth end point tooth at 6GHz provided by an embodiment of the present invention;

[0026] Figure 4a is the horizontal polarization amplitude of the vertical limit of the center of the quiet zone corresponding to the reverse rotation of the center tooth of the upper side tooth at 6 GHz provided by an embodiment of the present invention;

[0027] Figure 4b It is the vertical polarization amplitude of the vertical limit of the center of the quiet zone corresponding to the reverse rotation of the center tooth of the upper side tooth at 6 GHz provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] The specific implementation of the above concept is described below.

[0030] An embodiment of the present invention provides a method for detecting the position and degree of distortion of a torsion edge tooth of a reflecting surface, the method comprising:

[0031] According to the requirements of an ideal compact field test environment, a simulation model is established; wherein the simulation model includes a feed source and a reflection surface; wherein the reflection surface is a rotating parabola, including a main surface projected as a rectangle and side teeth distributed around the main surface;

[0032] Setting simulation parameters of the simulation model, and setting the ideal position of the edge tooth to be zero position;

[0033] Collect test data of each upper side tooth and lower side tooth at different angles to obtain a database;

[0034] The reflective surface is debugged on site according to the database.

[0035] In the embodiment of the present invention, in order to effectively reduce the adverse effects of the side gear adjustment error on the amplitude and phase quality of the static zone, the side gear torsion position and torsion degree are analyzed in combination with software simulation, thereby providing effective guidance for the side gear adjustment work. The position and torsion degree of the torsion side gear are determined according to the amplitude and phase data measured in the static zone, thereby providing effective guidance for the side gear adjustment work, thereby reducing the labor cost and time cost of side gear adjustment, while achieving the effect of improving the amplitude and phase quality of the static zone.

[0036] In some embodiments of the present invention, the simulation parameters include the focal length of the reflection surface, the feed source elevation angle, the feed source beam width, and the quiet zone range.

[0037] In some embodiments of the present invention, collecting test data of each of the side teeth at different angles includes:

[0038] For each of the upper and lower teeth on one side of the axis of symmetry of the reflection surface, the teeth are rotated to different angles, and test data of the teeth at different angles are obtained after simulation test;

[0039] The test data of each side tooth after the simulation test is assigned to the side tooth that is symmetrical to it and has not been tested in the simulation, so as to obtain the test data of each upper side tooth and each lower side tooth at different angles.

[0040] In this embodiment, since the reflection surface is symmetrical, it is only necessary to simulate and calculate the edge tooth data of one surface.

[0041] In some embodiments of the present invention, rotating the side teeth to different angles comprises:

[0042] The edge of the main surface is used as an axis to rotate the side teeth to different angles.

[0043] In this embodiment, the adjustment error is mainly reflected in the torsion of the horizontal axis (as shown by the X-axis in FIG. 1 ), that is, the edge torsion of the main surface connected thereto, and therefore, the main adjustment is also mainly carried out along this axis.

[0044] In some embodiments of the present invention, rotating the side teeth to different angles comprises:

[0045] The edge teeth are rotated to different angles with a step size of 0.5°. Specifically, the ideal position of the edge teeth is set to zero, the twisting around the transverse axis in the direction of the quiet zone is defined as positive, and the twisting around the transverse axis in the opposite direction of the quiet zone is defined as negative. The twisting angles are set to ±0.5°, ±1.0°, ±1.5°, ±2.0°, ±2.5° and ±3.0° in sequence, and the end teeth from the center tooth to the edge are twisted one by one, and the amplitude phase of the quiet zone is simulated. Figures 2 to 4 show some examples of simulation results of the main polarization amplitude of the vertical section at the center of the quiet zone at 6GHz.

[0046] In some embodiments of the present invention, a gap is simulated between the main surface and the side teeth.

[0047] In this embodiment, in order to be closer to the actual working condition of the reflection surface, the upper side teeth are translated as a whole to obtain a gap with a width of 5 mm (corresponding to λ / 10 at 6 GHz).

[0048] In some embodiments of the present invention, the on-site debugging of the reflective surface according to the database includes:

[0049] During on-site debugging, the reflective surface to be debugged is tested to obtain the test results;

[0050] Compare the test result with the data in the database to obtain the corresponding zero-offset side teeth and their offset angles;

[0051] The side tooth of the offset zero position is rotated according to the offset angle.

[0052] In some embodiments of the present invention, simulation results of side teeth at different positions and different torsion angles are collated and analyzed to obtain the relationship between the side tooth position and torsion state and the amplitude phase in the static zone. In the actual side tooth adjustment process, the side teeth at a specific position are twisted at a specific angle, and the amplitude phase data in the static zone is measured to be compared with the existing simulation results to verify the accuracy of the method.

[0053] An embodiment of the present invention provides a device for detecting the position of the torsion edge teeth of a reflecting surface and the degree of its distortion. The device embodiment can be implemented by software, or by hardware or a combination of software and hardware. From a hardware perspective, a hardware architecture diagram of an electronic device in which a device for detecting the position of the torsion edge teeth of a reflecting surface and the degree of its distortion is provided in an embodiment of the present invention is provided. In addition to the processor, memory, network interface, and non-volatile memory shown in FIG3, the electronic device in which the device is located in the embodiment can generally include other hardware, such as a forwarding chip responsible for processing messages, etc. Taking software implementation as an example, as a device in a logical sense, it is formed by the CPU of the electronic device in which it is located reading the corresponding computer program in the non-volatile memory into the memory and running it. A device for detecting the position of the torsion edge teeth of a reflecting surface and the degree of its distortion provided in this embodiment includes:

[0054] A modeling unit, used to establish a simulation model according to the requirements of an ideal compact field test environment; wherein the simulation model includes a feed source and a reflection surface; wherein the reflection surface is a rotating parabola, including a main surface projected as a rectangle and side teeth distributed around the main surface;

[0055] A setting unit, used to set simulation parameters of the simulation model and set the ideal position of the edge tooth to zero position;

[0056] A data acquisition unit is used to collect test data of each upper side tooth and each lower side tooth at different angles to obtain a database;

[0057] An adjustment unit is used to adjust the reflective surface on site according to the database.

[0058] It is to be understood that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on a device for detecting the position of a torsion edge tooth of a reflective surface and the degree of its twist. In other embodiments of the present invention, a device for detecting the position of a torsion edge tooth of a reflective surface and the degree of its twist may include more or fewer components than shown in the figure, or combine some components, or split some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0059] The information interaction, execution process and other contents between the modules in the above-mentioned device are based on the same concept as the embodiment of the method of the present invention. For specific contents, please refer to the description in the embodiment of the method of the present invention, and no further description is given here.

[0060] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, a method for detecting the position and degree of distortion of a twisted edge tooth of a reflecting surface in any embodiment of the present invention is implemented.

[0061] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the processor executes a method for detecting the position and degree of distortion of a torsion edge tooth of a reflecting surface in any embodiment of the present invention.

[0062] Specifically, a system or device equipped with a storage medium can be provided, on which software program code that implements the functions of any of the above-mentioned embodiments is stored, and a computer (or CPU or MPU) of the system or device can be enabled to read and execute the program code stored in the storage medium.

[0063] In this case, the program code itself read from the storage medium can realize the function of any one of the above-mentioned embodiments, and thus the program code and the storage medium storing the program code constitute a part of the present invention.

[0064] The storage medium embodiments for providing the program code include a floppy disk, a hard disk, a magneto-optical disk, an optical disk (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), a magnetic tape, a non-volatile memory card, and a ROM. Alternatively, the program code can be downloaded from a server computer by a communication network.

[0065] In addition, it should be clear that the functions of any of the above embodiments can be implemented not only by executing the program code read by the computer, but also by enabling an operating system operating on the computer to complete part or all of the actual operations based on instructions from the program code.

[0066] In addition, it can be understood that the program code read from the storage medium is written to a memory provided in an expansion board inserted into the computer or to a memory provided in an expansion module connected to the computer, and then based on the instructions of the program code, a CPU installed on the expansion board or expansion module is enabled to perform part or all of the actual operations, thereby realizing the functions of any of the above-mentioned embodiments.

[0067] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical factors in the process, method, article or device including the elements.

[0068] A person of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk, etc., various media that can store program codes.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for detecting the position and degree of twisting of a torsion edge of a reflecting surface, characterized in that: include: According to the requirements of an ideal compact field test environment, a simulation model is established; wherein the simulation model includes a feed source and a reflection surface; wherein the reflection surface is a rotating parabola, including a main surface projected as a rectangle and side teeth distributed around the main surface; Setting simulation parameters of the simulation model, and setting the ideal position of the edge tooth to be zero position; Collect test data of each upper side tooth and lower side tooth at different angles to obtain a database; The reflective surface is debugged on site according to the database.

2. The method according to claim 1, characterized in that The simulation parameters include the focal length of the reflection surface, the feed source elevation angle, the feed source beam width, and the quiet zone range.

3. The method according to claim 1, characterized in that The collecting of test data at different angles of each of the side teeth includes: For each of the upper and lower teeth on one side of the axis of symmetry of the reflection surface, the teeth are rotated to different angles, and test data of the teeth at different angles are obtained after simulation test; The test data of each side tooth after the simulation test is assigned to the side tooth that is symmetrical to it and has not been tested in the simulation, so as to obtain the test data of each upper side tooth and each lower side tooth at different angles.

4. The method according to claim 3, characterized in that Rotating the side teeth to different angles, including: The edge of the main surface is used as an axis to rotate the side teeth to different angles.

5. The method according to claim 3, characterized in that: Rotating the side teeth to different angles, including: The edge teeth were rotated to different angles in steps of 0.5°.

6. The method according to claim 1, characterized in that A gap is simulated between the main surface and the side teeth.

7. The method according to claim 1, characterized in that The on-site debugging of the reflective surface according to the database comprises: During on-site debugging, the reflective surface to be debugged is tested to obtain the test results; Compare the test result with the data in the database to obtain the corresponding zero-offset side teeth and their offset angles; The side tooth of the offset zero position is rotated according to the offset angle.

8. A device for detecting the position and degree of twisting of the torsion edge teeth of a reflecting surface, characterized in that: For implementing any of the methods in claims 1-7, the device comprises: A modeling unit, used to establish a simulation model according to the requirements of an ideal compact field test environment; wherein the simulation model includes a feed source and a reflection surface; wherein the reflection surface is a rotating parabola, including a main surface projected as a rectangle and side teeth distributed around the main surface; A setting unit, used to set simulation parameters of the simulation model and set the ideal position of the edge tooth to zero position; A data acquisition unit is used to collect test data of each upper side tooth and each lower side tooth at different angles to obtain a database; An adjustment unit is used to adjust the reflective surface on site according to the database.

9. An electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the detection method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to execute the detection method according to any one of claims 1 to 7.

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