Precision calibration-test device for passive jamming devices and method of use thereof

Abstract

The present disclosure relates to a precision calibration-testing device for passive interference equipment and a method of using the same. The device comprises: an antenna azimuth angle adjusting mechanism including a first lifting platform, a sliding rail, an antenna fixing platform, a level, a double-path range finder, a sighting mirror target, a first single-path range finder and a laser receiver; a passive interference equipment fixing mechanism including a second lifting platform, an equipment fixing platform, a sighting mirror, a second single-path range finder and a laser ruler; and an integrated control mechanism electrically connected to the double-path range finder, the first single-path range finder, the laser receiver, the second single-path range finder and the laser ruler. The present disclosure ensures the accuracy of calibration precision through composite measurement of various measurement components. The integrated control mechanism is used to automatically adjust the relative position between the passive interference mechanism and the antenna to be measured, adjust the parallelism, perform zero calibration and azimuth angle calculation, and thus efficiently realize the calibration and measurement of the passive interference equipment.

Description

Technical Field

[0001] This disclosure relates to the field of calibration technology for passive interference devices, and more particularly to a precision calibration-testing device for passive interference devices and its usage method. Background Technology

[0002] Passive interference devices are used to detect active devices. They can accurately measure parameters such as the location and distance of active devices based on signals such as electromagnetic waves and infrared rays emitted by the devices, thereby achieving target identification. They are used in industrial equipment, military equipment, and some civilian equipment. During the commissioning and production of passive devices, their measurement parameters need to be calibrated to improve the accuracy of the measurements.

[0003] Currently, the azimuth angle of interfering equipment is mainly calibrated using angle and distance measuring devices (such as total stations and theodolites) or in large microwave laboratories equipped with numerous antennas of different bands. Both methods offer high accuracy but also have several drawbacks. The disadvantages of total stations and theodolites are as follows: 1) They require specialized measurement knowledge and strict adherence to operating procedures, typically requiring professional personnel; 2) Testing is time-consuming, and the measured data needs further processing, reducing efficiency; 3) They are inconvenient to use; the equipment cannot be moved during calibration, otherwise deviations in the reference point will cause calibration parameters to fail. The disadvantages of microwave laboratories are: 1) They are immobile and lack portability; 2) They require professional personnel for operation and adjustment, have long operating cycles, and offer limited flexibility in equipment use. Summary of the Invention

[0004] To avoid the shortcomings of existing technologies, this invention provides a precision calibration and testing device for passive interference devices, which solves the problems of high operational expertise requirements, long testing time, and poor flexibility in existing technologies.

[0005] According to a first aspect of the present disclosure, a precision calibration-testing apparatus for a passive interference device is provided, the apparatus comprising:

[0006] Antenna azimuth adjustment mechanism, passive interference device fixing mechanism, and integrated control mechanism;

[0007] The antenna azimuth adjustment mechanism includes a first lifting platform, a slide rail, an antenna fixing platform, two levels, two dual-channel rangefinders, two aiming scope targets, two first single-channel rangefinders, and two laser receivers; wherein...

[0008] The slide rail is mounted on the first lifting platform, and the antenna fixing platform is movably mounted on the slide rail. The antenna fixing platform is used to fix the antenna under test. Adjusting the antenna fixing platform can move the antenna fixing platform along the axial direction of the slide rail. The two levels are respectively mounted at both ends of the slide rail. The two dual-channel rangefinders, the two aiming scope targets, the two first single-channel rangefinders, and the two laser receivers are all mounted on the slide rail.

[0009] The passive interference device fixing mechanism includes a second lifting platform, a device fixing platform, two aiming scopes, two second single-channel rangefinders, and two laser rulers; wherein...

[0010] The equipment mounting platform is set on the second lifting platform. The two aiming mirrors, the two second single-channel rangefinders and the two laser rulers are all set on the equipment mounting platform. The equipment mounting platform is used to fix the passive interference equipment.

[0011] The integrated control mechanism is electrically connected to the dual-channel rangefinder, the first single-channel rangefinder, the laser receiver, the second single-channel rangefinder, and the laser ruler, respectively.

[0012] The positions of the two aiming scopes and the two aiming scope targets are corresponding so that the aiming scope targets can be observed through the aiming scopes.

[0013] The positions of the two laser rulers and the two laser receivers correspond to each other so that the laser receivers can receive the laser emitted by the laser rulers.

[0014] Two dual-path rangefinders are respectively installed on both sides of the antenna under test, and are used to measure the height of the antenna under test above the horizontal ground and the distance between the antenna under test and the passive interference device.

[0015] Two first single-channel rangefinders are respectively installed on both sides of the antenna under test, and are used to measure the positional relationship between the antenna under test and the slide rail.

[0016] Two second single-channel rangefinders are respectively installed on both sides of the equipment mounting platform to measure the height of the source interference device from the horizontal ground.

[0017] According to a second aspect of the present disclosure, a method for using a precision calibration-testing apparatus for a passive interference device is provided, the method comprising:

[0018] Zero-position calibration is performed on the antenna azimuth adjustment mechanism and the passive interference device fixing mechanism, specifically including:

[0019] Move the antenna mounting platform to the center of the slide rail;

[0020] Adjust the first and second lifting platforms to coarsely adjust the height of the antenna under test on the antenna fixing platform from the horizontal ground and the height of the passive interference device from the horizontal ground.

[0021] Use a level to adjust the slide rail to be parallel to the horizontal plane;

[0022] The aiming scope is adjusted to observe the target of the aiming scope in order to coarsely adjust the parallelism between the plane of the antenna under test and the plane of the passive jamming device;

[0023] Turn on the laser ruler so that the laser emitted by the laser ruler can hit the laser point on the laser receiver;

[0024] The height of the antenna under test above the horizontal ground and the distance between the antenna under test and the passive interference device are measured using a dual-channel rangefinder, and the height of the passive interference device above the horizontal ground is measured using a second rangefinder.

[0025] The measurement parameters are obtained by calculating the difference between the laser point and the center position of the laser receiver, the height of the antenna under test from the horizontal ground, and the height of the passive interference device from the horizontal ground using the integrated control mechanism.

[0026] The integrated control mechanism adjusts the first lifting platform and the second lifting platform according to the measurement parameters, so that the height of the antenna under test from the horizontal ground is the same as the height of the passive interference device, and the plane of the antenna under test is parallel to the plane of the passive interference device, thereby finding the zero position;

[0027] The antenna under test is tested, specifically including:

[0028] Record the position of the zero point;

[0029] The integrated control mechanism is used to control the antenna mounting platform to move axially along the slide rail in order to adjust the relative position of the antenna under test on the slide rail;

[0030] The relative change in the position of the antenna under test on the slide rail is measured using a first rangefinder, and the distance between the antenna under test and the passive interference device is measured using the dual-channel rangefinder.

[0031] Based on the relative change in the position of the antenna under test on the slide rail and the distance between the antenna under test and the passive interference device, the actual azimuth angle between the antenna under test and the passive interference device is calculated.

[0032] The passive interference device receives the signal emitted by the antenna under test, calculates the theoretical azimuth angle, and compares the theoretical azimuth angle with the actual azimuth angle for verification.

[0033] The method also includes:

[0034] The accuracy of the zero position is confirmed by observing the target of the aiming scope using the aiming scope.

[0035] If the observation point is at the exact center, then the zero point position is accurate.

[0036] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0037] In the embodiments of this disclosure, the accuracy calibration-testing device and its usage method for the aforementioned passive interference device ensure the accuracy of calibration through composite measurements using a calibration sight and target, a laser ruler and receiver, a dual-channel rangefinder, a first single-channel rangefinder, and a second single-channel rangefinder. Furthermore, an integrated control mechanism automates the adjustment of the relative position and parallelism between the passive interference mechanism and the antenna under test, performs zero-position calibration, and calculates the azimuth angle, thereby efficiently achieving the calibration and measurement of the passive interference device. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0039] Figure 1 This diagram illustrates the structure of a precision calibration-testing apparatus for a passive interference device according to an exemplary embodiment of the present disclosure.

[0040] Figure 2 A step diagram illustrating a method of using a precision calibration-testing apparatus for a passive interference device according to an exemplary embodiment of this disclosure;

[0041] Figure 3 This diagram illustrates the steps of zero-position calibration in an exemplary embodiment of this disclosure.

[0042] Figure 4 A diagram illustrating the steps of testing an antenna in an exemplary embodiment of this disclosure is shown.

[0043] In the diagram, 100 is the antenna azimuth adjustment mechanism; 110 is the first lifting platform; 120 is the slide rail; 130 is the antenna mounting platform; 140 is the level; 150 is the dual-channel rangefinder; 160 is the aiming scope target; 170 is the first single-channel rangefinder; 180 is the laser receiver; 200 is the passive interference device mounting mechanism; 210 is the second lifting platform; 220 is the device mounting platform; 230 is the aiming scope; 240 is the second single-channel rangefinder; 250 is the laser ruler; 300 is the integrated control mechanism; 400 is the antenna under test; and 500 is the passive interference device. Detailed Implementation

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0045] Furthermore, the accompanying drawings are merely illustrative diagrams of embodiments of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0046] This example embodiment first provides a precision calibration-testing apparatus for a passive interference device 500. (Reference) Figure 1As shown, the accuracy calibration-testing device for the passive interference device 500 may include: an antenna azimuth adjustment mechanism 100, a passive interference device fixing mechanism 200, and an integrated control mechanism 300; the antenna azimuth adjustment mechanism 100 includes a first lifting platform 110, a slide rail 120, an antenna fixing platform 130, two levels 140, two dual-channel rangefinders 150, two aiming targets 160, two first single-channel rangefinders 170, and two laser receivers 180; wherein, the slide rail 120 is disposed on the first lifting platform 110, the antenna fixing platform 130 is movably disposed on the slide rail 120, the antenna fixing platform 130 is used to fix the antenna 400 under test, and adjusting the antenna fixing platform 130 allows the antenna fixing platform 130 to move along the axial direction of the slide rail 120, the two levels 140 are respectively disposed at both ends of the slide rail 120, and the two dual-channel rangefinders 150 are movably disposed at both ends of the slide rail 120, ... The dual-path rangefinder 150, the two aiming targets 160, the two first single-path rangefinders 170, and the two laser receivers 180 are all mounted on the slide rail 120. The passive interference device fixing mechanism 200 includes a second lifting platform 210, a device fixing platform 220, two aiming targets 230, two second single-path rangefinders 240, and two laser rulers 250. The device fixing platform 220 is mounted on the second lifting platform 210, and the two aiming targets 230, the two second single-path rangefinders 240, and the two laser rulers 250 are all mounted on the device fixing platform 220. The device fixing platform 220 is used to fix the passive interference device 500. The integrated control mechanism 300 is electrically connected to the dual-path rangefinder 150, the first single-path rangefinder 170, the laser receiver 180, the second single-path rangefinder 240, and the laser ruler 250.

[0047] Specifically, during calibration and measurement, zero-point calibration must be performed first. The antenna azimuth adjustment mechanism 100 and the passive interference device fixing mechanism 200 are placed at a target distance (usually greater than 20m). The antenna fixing platform 130 of the antenna azimuth adjustment mechanism 100 needs to be placed at the center of the slide rail 120. By adjusting the first lifting platform 110 of the antenna azimuth adjustment mechanism 100 and the second lifting platform 210 of the passive interference device fixing mechanism 200, the antenna 400 under test and the passive interference device 500 are roughly at the same height. The slide rail can be adjusted using the level (i.e., the level 140) of the antenna azimuth adjustment mechanism 100. Adjust the antenna azimuth adjustment mechanism 100 to be parallel to the horizontal plane; observe the target 160 of the aiming scope using the two aiming scopes 230 of the passive jamming device fixing mechanism 200 to roughly adjust the antenna azimuth adjustment mechanism 100 and the passive jamming device fixing mechanism 200 to be parallel; then turn on the two laser rulers 250 of the passive jamming device fixing mechanism 200 so that the laser emitted by the laser rulers 250 hits the laser receiver 180 of the antenna azimuth adjustment mechanism 100; at the same time, the first single-channel rangefinder 170 and the dual-channel rangefinder 150 of the antenna azimuth adjustment mechanism 100, the passive jamming device fixing mechanism 200... The second single-channel rangefinder 240 of the fixing mechanism 200 measures the distance between the antenna azimuth adjustment mechanism 100 and the passive interference device fixing mechanism 200, as well as the distance between the antenna azimuth adjustment mechanism 100 and the passive interference device fixing mechanism 200 and the horizontal ground. The position information of the laser point on the laser receiver 180, as well as the height and distance information measured by the first single-channel rangefinder 170, the dual-channel rangefinder 150, and the second single-channel rangefinder 240, are fed back to the integrated control mechanism 300, which calculates the position of the laser point relative to the center of the laser receiver 180 through a built-in program. The difference between the antenna azimuth adjustment mechanism 100 and the platform height between the passive interference device fixing mechanism 200; based on the calculated parameters, the integrated control mechanism 300 can precisely adjust the antenna 400 under test in the antenna azimuth adjustment mechanism 100 and the passive interference device 500 in the passive interference device fixing mechanism 200 to the same height by controlling the first lifting platform 110 and the antenna adjustment platform, and keep the two planes parallel, thereby finding the absolute zero position of the passive interference device 500. At this time, the observation point of the aiming scope 230 should be at the center of the aiming scope target 160.

[0048] After the zero-position calibration is completed, different angles need to be adjusted for calibration and measurement. The antenna adjustment platform can be controlled by the integrated control mechanism 300 to adjust the relative position of the antenna on the slide rail 120. The relative displacement of the antenna and the horizontal distance between the antenna and the passive interference device 500 can be calculated by the first single-channel rangefinder 170, the dual-channel rangefinder 150 and the second single-channel rangefinder 240, thereby obtaining the actual azimuth angle. This is then compared with the measured value of the passive interference device 500 to achieve the verification work.

[0049] The accuracy calibration-testing device for the passive interference device 500, as described above, ensures the accuracy of calibration through composite measurements using the aiming scope 230 and its target 160, the laser ruler 250 and its receiver 180, the dual-channel rangefinder 150, the first single-channel rangefinder 170, and the second single-channel rangefinder 240. Furthermore, the integrated control mechanism 300 automatically adjusts the relative position and parallelism between the passive interference mechanism and the antenna under test 400, performs zero-position calibration and azimuth angle calculation, thereby efficiently realizing the calibration and measurement of the passive interference device 500.

[0050] Below, we will refer to Figure 1 The various parts of the accuracy calibration-testing apparatus for the passive interference device 500 described in this example embodiment will be described in more detail.

[0051] In one embodiment, the positions of the two aiming scopes 230 and the two aiming scope targets 160 correspond to each other so that the aiming scope targets 160 can be observed through the aiming scopes 230.

[0052] Specifically, the aiming scope 230 and the aiming scope target 160 work together to verify the parallelism between the plane of the antenna under test 400 and the plane of the passive jamming device 500. When the passive jamming device 500 is in absolute zero position, the observation point of the aiming scope 230 should be located at the exact center of the aiming scope target 160.

[0053] In one embodiment, the positions of the two laser rulers 250 and the two laser receivers 180 correspond to each other, so that the laser receivers 180 can receive the laser emitted by the laser rulers 250.

[0054] Specifically, the laser emitted by the laser ruler 250 is displayed as a laser point on the laser receiver 180. The integrated control mechanism 300 calculates the difference between the laser point and the center position of the laser receiver 180, and the difference between the height of the antenna under test 400 above the horizontal ground and the height of the passive interference device 500 above the horizontal ground, to obtain measurement parameters. The integrated control mechanism 300 adjusts the first lifting platform 110 and the second lifting platform 210 according to the measurement parameters, so that the height of the antenna under test 400 above the horizontal ground is the same as the height of the passive interference device 500, and the plane of the antenna under test 400 is parallel to the plane of the passive interference device 500, thereby finding the zero position.

[0055] In one embodiment, two dual-channel rangefinders 150 are respectively disposed on both sides of the antenna under test 400, for measuring the height of the antenna under test 400 above the horizontal ground and the distance between the antenna under test 400 and the passive interference device 500. Specifically, the two dual-channel rangefinders 150 are respectively disposed on both sides of the antenna under test 400 to be able to measure the height of the antenna under test 400 above the horizontal ground and the distance between the antenna under test 400 and the passive interference device 500.

[0056] In one embodiment, two first single-channel rangefinders 170 are respectively disposed on both sides of the antenna under test 400, and are used to measure the positional relationship between the antenna under test 400 and the slide rail 120.

[0057] In one embodiment, two second single-channel rangefinders 240 are respectively installed on both sides of the equipment mounting platform 220 to measure the height of the source interference device from the horizontal ground.

[0058] Furthermore, this example embodiment also provides a method for using the accuracy calibration-testing apparatus for a passive interference device 500. (See reference...) Figures 2-4 As shown, the method may include steps S101 to S102.

[0059] Step S101: Perform zero-position calibration on the antenna azimuth adjustment mechanism 100 and the passive interference device fixing mechanism 200;

[0060] like Figure 3 As shown, step S101 specifically includes:

[0061] Step S1011: Move the antenna mounting platform 130 to the center position of the slide rail 120;

[0062] Step S1012: Adjust the first lifting platform 110 and the second lifting platform 210 to coarsely adjust the height of the antenna under test 400 on the antenna fixing platform 130 from the horizontal ground and the height of the passive interference device 500 from the horizontal ground.

[0063] Step S1013: Use the level 140 to adjust the slide rail 120 to be parallel to the horizontal plane;

[0064] Step S1014: Adjust the aiming scope 230 to observe the aiming scope target 160 in order to coarsely adjust the parallelism between the plane of the antenna under test 400 and the plane of the passive interference device 500;

[0065] Step S1015: Turn on the laser ruler 250 so that the laser emitted by the laser ruler 250 can hit the laser point on the laser receiver 180;

[0066] Step S1016: Use a dual-channel rangefinder 150 to measure the height of the antenna under test 400 above the horizontal ground and the distance between the antenna under test 400 and the passive interference device 500; use a second rangefinder to measure the height of the passive interference device 500 above the horizontal ground.

[0067] Step S1017: Calculate the difference between the laser point and the center position of the laser receiver 180, the height of the antenna under test 400 from the horizontal ground, and the height of the passive interference device 500 from the horizontal ground using the integrated control mechanism 300, in order to obtain the measurement parameters.

[0068] Step S1018: The integrated control mechanism 300 adjusts the first lifting platform 110 and the second lifting platform 210 according to the measurement parameters, so that the height of the antenna under test 400 from the horizontal ground is the same as the height of the passive interference device 500, and the plane of the antenna under test 400 is parallel to the plane of the passive interference device 500, thereby finding the zero position.

[0069] Step S102: Test the antenna 400 under test;

[0070] like Figure 4 As shown, step S102 specifically includes:

[0071] Step S1021: Record the position of the zero point;

[0072] Step S1022: Use the integrated control mechanism 300 to control the antenna mounting platform 130 to move along the axial direction of the slide rail 120, so as to adjust the relative position of the antenna under test 400 on the slide rail 120;

[0073] Step S1023: Use the first rangefinder to measure the relative change in position of the antenna under test 400 on the slide rail 120, and use the dual-channel rangefinder 150 to measure the distance between the antenna under test 400 and the passive interference device 500;

[0074] Step S1024: Calculate the actual azimuth angle between the antenna under test 400 and the passive interference device 500 based on the relative change of the position of the antenna under test 400 on the slide rail 120 and the distance between the antenna under test 400 and the passive interference device 500.

[0075] Step S1025: The passive interference device 500 receives the signal emitted by the antenna under test 400, calculates the theoretical azimuth angle, and compares the theoretical azimuth angle with the actual azimuth angle for verification.

[0076] Specifically, during calibration and measurement, zero-point calibration must be performed first. The antenna azimuth adjustment mechanism 100 and the passive interference device fixing mechanism 200 are placed at a target distance (usually greater than 20m). The antenna fixing platform 130 of the antenna azimuth adjustment mechanism 100 needs to be placed at the center of the slide rail 120. By adjusting the first lifting platform 110 of the antenna azimuth adjustment mechanism 100 and the second lifting platform 210 of the passive interference device fixing mechanism 200, the antenna 400 under test and the passive interference device 500 are roughly at the same height. The slide rail can be adjusted using the level (i.e., the level 140) of the antenna azimuth adjustment mechanism 100. Adjust the antenna azimuth adjustment mechanism 100 to be parallel to the horizontal plane; observe the target 160 of the aiming scope using the two aiming scopes 230 of the passive jamming device fixing mechanism 200 to roughly adjust the antenna azimuth adjustment mechanism 100 and the passive jamming device fixing mechanism 200 to be parallel; then turn on the two laser rulers 250 of the passive jamming device fixing mechanism 200 so that the laser emitted by the laser rulers 250 hits the laser receiver 180 of the antenna azimuth adjustment mechanism 100; at the same time, the first single-channel rangefinder 170 and the dual-channel rangefinder 150 of the antenna azimuth adjustment mechanism 100, the passive jamming device fixing mechanism 200... The second single-channel rangefinder 240 of the fixing mechanism 200 measures the distance between the antenna azimuth adjustment mechanism 100 and the passive interference device fixing mechanism 200, as well as the distance between the antenna azimuth adjustment mechanism 100 and the passive interference device fixing mechanism 200 and the horizontal ground. The position information of the laser point on the laser receiver 180, as well as the height and distance information measured by the first single-channel rangefinder 170, the dual-channel rangefinder 150, and the second single-channel rangefinder 240, are fed back to the integrated control mechanism 300, which calculates the position of the laser point relative to the center of the laser receiver 180 through a built-in program. The difference between the antenna azimuth adjustment mechanism 100 and the platform height between the passive interference device fixing mechanism 200; based on the calculated parameters, the integrated control mechanism 300 can precisely adjust the antenna 400 under test in the antenna azimuth adjustment mechanism 100 and the passive interference device 500 in the passive interference device fixing mechanism 200 to the same height by controlling the first lifting platform 110 and the antenna adjustment platform, and keep the two planes parallel, thereby finding the absolute zero position of the passive interference device 500. At this time, the observation point of the aiming scope 230 should be at the center of the aiming scope target 160.

[0077] After the zero-position calibration is completed, different angles need to be adjusted for calibration and measurement. The antenna adjustment platform can be controlled by the integrated control mechanism 300 to adjust the relative position of the antenna on the slide rail 120. The relative displacement of the antenna and the horizontal distance between the antenna and the passive interference device 500 can be calculated by the first single-channel rangefinder 170, the dual-channel rangefinder 150 and the second single-channel rangefinder 240, thereby obtaining the actual azimuth angle. This is then compared with the measured value of the passive interference device 500 to achieve the verification work.

[0078] In one embodiment, the method further includes: using the aiming scope 230 to observe the aiming scope target 160 to confirm the accuracy of the zero position; if the observation point is at the center, the zero position is accurate; if the observation point is not at the center, a troubleshooting check is required.

[0079] Through the aforementioned accuracy calibration and testing device and its usage method for the passive interference device 500, combined with the composite measurements of the aiming scope 230 and its target 160, the laser ruler 250 and its receiver 180, the dual-channel rangefinder 150, the first single-channel rangefinder 170, and the second single-channel rangefinder 240, the accuracy of the calibration is ensured. It can precisely adjust the zero position and automatically adjust the azimuth angle, greatly improving the efficiency of the accuracy calibration and testing of the passive interference device 500. Furthermore, it features a highly automated testing system with low operational requirements, avoiding measurement errors.

[0080] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" in the above description indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this disclosure.

[0081] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0082] In the embodiments of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0083] In embodiments of this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0085] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A precision calibration and testing device for a passive interference device, characterized in that, The device includes: Antenna azimuth adjustment mechanism, passive interference device fixing mechanism, and integrated control mechanism; The antenna azimuth adjustment mechanism includes a first lifting platform, a slide rail, an antenna fixing platform, two levels, two dual-channel rangefinders, two aiming scope targets, two first single-channel rangefinders, and two laser receivers; wherein... The slide rail is mounted on the first lifting platform, and the antenna fixing platform is movably mounted on the slide rail. The antenna fixing platform is used to fix the antenna under test. Adjusting the antenna fixing platform can move the antenna fixing platform along the axial direction of the slide rail. The two levels are respectively mounted at both ends of the slide rail. The two dual-channel rangefinders, the two aiming scope targets, the two first single-channel rangefinders, and the two laser receivers are all mounted on the slide rail. The passive interference device fixing mechanism includes a second lifting platform, a device fixing platform, two aiming scopes, two second single-channel rangefinders, and two laser rulers; wherein... The equipment mounting platform is set on the second lifting platform. The two aiming mirrors, the two second single-channel rangefinders and the two laser rulers are all set on the equipment mounting platform. The equipment mounting platform is used to fix the passive interference equipment. The integrated control mechanism is electrically connected to the dual-channel rangefinder, the first single-channel rangefinder, the laser receiver, the second single-channel rangefinder, and the laser ruler, respectively.

2. The accuracy calibration and testing device for passive interference equipment according to claim 1, characterized in that, The positions of the two aiming scopes and the two aiming scope targets are corresponding so that the aiming scope targets can be observed through the aiming scopes.

3. The accuracy calibration and testing device for passive interference equipment according to claim 1, characterized in that, The positions of the two laser rulers and the two laser receivers correspond to each other so that the laser receivers can receive the laser emitted by the laser rulers.

4. The accuracy calibration and testing device for passive interference equipment according to claim 1, characterized in that, Two dual-path rangefinders are respectively installed on both sides of the antenna under test, and are used to measure the height of the antenna under test above the horizontal ground and the distance between the antenna under test and the passive interference device.

5. The accuracy calibration and testing device for passive interference equipment according to claim 1, characterized in that, Two first single-channel rangefinders are respectively installed on both sides of the antenna under test, and are used to measure the positional relationship between the antenna under test and the slide rail.

6. The accuracy calibration and testing device for passive interference equipment according to claim 1, characterized in that, Two second single-channel rangefinders are respectively installed on both sides of the equipment mounting platform to measure the height of the passive interference device from the horizontal ground.

7. A method of using a precision calibration-testing device for a passive interference device, applied to the precision calibration-testing device for any of claims 1 to 6, characterized in that, The method includes: Zero-position calibration is performed on the antenna azimuth adjustment mechanism and the passive interference device fixing mechanism, specifically including: Move the antenna mounting platform to the center of the slide rail; Adjust the first and second lifting platforms to coarsely adjust the height of the antenna under test on the antenna fixing platform from the horizontal ground and the height of the passive interference device from the horizontal ground. Use a level to adjust the slide rail to be parallel to the horizontal plane; The aiming scope is adjusted to observe the target of the aiming scope in order to coarsely adjust the parallelism between the plane of the antenna under test and the plane of the passive jamming device; Turn on the laser ruler so that the laser emitted by the laser ruler can hit the laser receiver to form a laser point; The height of the antenna under test above the horizontal ground and the distance between the antenna under test and the passive interference device are measured using a dual-channel rangefinder, and the height of the passive interference device above the horizontal ground is measured using a second single-channel rangefinder. The measurement parameters are obtained by calculating the difference between the laser point and the center position of the laser receiver, the height of the antenna under test from the horizontal ground, and the height of the passive interference device from the horizontal ground using the integrated control mechanism. The integrated control mechanism adjusts the first lifting platform and the second lifting platform according to the measurement parameters, so that the height of the antenna under test from the horizontal ground is the same as the height of the passive interference device, and the plane of the antenna under test is parallel to the plane of the passive interference device, thereby finding the zero position; The antenna under test is tested, specifically including: Record the position of the zero point; The integrated control mechanism is used to control the antenna mounting platform to move axially along the slide rail in order to adjust the relative position of the antenna under test on the slide rail; The relative change in the position of the antenna under test on the slide rail is measured using a first single-channel rangefinder, and the distance between the antenna under test and the passive interference device is measured using the dual-channel rangefinder. Based on the relative change in the position of the antenna under test on the slide rail and the distance between the antenna under test and the passive interference device, calculate the actual azimuth angle between the antenna under test and the passive interference device; The passive interference device receives the signal emitted by the antenna under test, calculates the theoretical azimuth angle, and compares the theoretical azimuth angle with the actual azimuth angle for verification.

8. The method of using the accuracy calibration-testing device for the passive interference device according to claim 7, characterized in that, The method also includes: Use the aiming scope to observe the target and confirm the accuracy of the zero point position; If the observation point is at the exact center, then the zero point position is accurate.

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