Radar anti-interference performance multi-scene test device and test method thereof
By designing a multi-scene testing device, using simulation boxes and multiple driving mechanisms, multiple test methods for radar signals are realized, which solves the problem of single and low efficiency in the existing technology, and improves the comprehensiveness and accuracy of the test.
Patent Information
- Application Number
- CN202510358811.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-06-13
AI Technical Summary
The existing radar anti-interference testing devices have simple testing methods, and most of them have only one testing method, which is difficult to meet multiple testing needs, reducing testing efficiency.
A multi-scene testing device is designed, including an analog box, a signal generator, a signal processor, a receiver and a control panel. Through a variety of driving mechanisms and motor-driven threaded rods and guide rods, a variety of test methods of radar signals are realized, including tests in motion states, water inside, different wind speeds and electromagnetic environments.
Multi-scenario testing of radar anti-interference performance is realized, which improves the comprehensiveness and accuracy of the test and meets the testing needs of different environments and interference conditions.
Smart Images
Figure CN120143070A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of radar anti-jamming testing, and specifically to a multi-scenario testing device and testing method for radar anti-jamming performance. Background Technique
[0002] In the fields of aerospace, radar is used for important tasks such as aircraft navigation, landing, and air traffic control. With the continuous increase in air traffic flow and the increase in various radio devices in the surrounding electromagnetic environment, radar faces more interference risks. In order to ensure flight safety, it is necessary to conduct anti-jamming tests on aviation radar to ensure that it can accurately provide key information such as the position and speed of the aircraft in a complex electromagnetic environment, and avoid navigation errors or air traffic control chaos caused by interference. And meteorological radar plays a key role in meteorological monitoring and early warning, and can monitor the intensity, position, and movement trend of rainfall, storms, hail weather phenomena in real time. However, the surrounding electromagnetic interference may affect the quality of the echo signal of the meteorological radar, resulting in inaccurate monitoring data, and then affecting the accuracy of meteorological forecasts and disaster early warnings. Through anti-jamming tests, it can be ensured that the meteorological radar works stably in various electromagnetic environments and provides reliable data support for meteorological services.
[0003] The testing methods of the testing devices in the prior art are relatively simple, and most of them only have one testing method. If multiple testing methods are required for the radar, the testing devices need to be frequently replaced, thereby reducing the testing efficiency. Summary of the Invention
[0004] The purpose of the present invention is to provide a multi-scenario testing device and testing method for radar anti-jamming performance to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the present invention provides the following technical solution: A multi-scenario testing device for radar anti-jamming performance, including a simulation box, one side of the simulation box is fixedly connected with a fixed frame, a sliding frame is slidably connected inside the fixed frame, a first signal generator is fixedly connected to one side inside the sliding frame, a second one-way threaded rod is rotatably connected inside the simulation box, a moving plate is threadedly connected to the outside of the second one-way threaded rod, a bidirectional threaded rod is rotatably connected to one side of the moving plate, clamping plates are symmetrically threadedly connected to the outside of the bidirectional threaded rod, an installation plate is arranged between the two clamping plates, a second signal generator is fixedly connected to the top of the installation plate, connecting columns are symmetrically fixedly connected to one side of the installation plate, a rotating disc is rotatably connected inside the clamping plate, an L-shaped plate is fixedly connected to one side of the moving plate, a blower is fixedly connected inside the L-shaped plate, an inner cavity is arranged on one side inside the simulation box, and a magnetic coil is arranged inside the inner cavity.
[0006] Preferably, a control panel and a signal processor are respectively fixedly connected to adjacent sides of the simulation box.
[0007] Preferably, a fixing plate is fixedly connected to the top of the fixing frame, and a receiver is fixedly connected to one side of the fixing plate.
[0008] Preferably, a first one-way threaded rod is threadedly connected to one end inside the sliding frame, one end of the first one-way threaded rod is fixedly connected to the output end of a first motor, one side of the first motor is fixedly connected to one side of the fixing frame, a first guide rod is slidably connected to the other end inside the sliding frame, and the first guide rod and the fixing frame are fixedly connected.
[0009] Preferably, one end of the second one-way threaded rod is fixedly connected to the output end of a second motor, and the second motor is fixedly connected to the top of the simulation box.
[0010] Preferably, there are two moving plates. A second guide rod is slidably connected inside one of the moving plates, and the second guide rod and the simulation box are fixedly connected.
[0011] Preferably, one end of the bidirectional threaded rod is fixedly connected to the output end of a third motor, the third motor is fixedly connected inside the moving plate, a third guide rod is fixedly connected to one side of the moving plate, and the clamping plate slides outside the third guide rod.
[0012] Preferably, the connecting column and the rotating disk are snap-fitted. Positioning holes are circularly arranged inside the rotating disk. The connecting column is snap-fitted with the positioning holes through positioning posts. One side of one of the rotating disks is fixedly connected to the output end of a fourth motor, and a protective cover is fixedly connected to one of the clamping plates.
[0013] Preferably, a water outlet pipe is fixedly connected to one side inside the simulation box.
[0014] A test method for a multi-scenario test device for radar anti-jamming performance includes the following steps:
[0015] Step 1: First, it is necessary to install and fix the signal generator to be tested. Start the second motor to drive the second one-way threaded rod to rotate. The second one-way threaded rod is threadedly connected to the moving plate, thereby driving the moving plate to drive the clamping plate assembly to move upward, moving the clamping plate out of the simulation box. Then, fix and install the second signal generator on the top of the mounting plate. Drive the bidirectional threaded rod to rotate through the third motor. The bidirectional threaded rod is threadedly connected to the clamping plate, thereby driving the two clamping plates to move left and right, adjusting the distance between the two clamping plates, enabling the device to install and fix mounting plates and second signal generators of different sizes, improving the applicable range of the device. Then, the mounting plate is snap-fitted with the rotating disks inside the two clamping plates through the connecting columns. At the same time, the positioning columns are inserted into the positioning holes to limit the position of the connecting columns. Then, by adjusting the distance between the two clamping plates, the clamping and fixing of the mounting plate and the second signal generator are completed.
[0016] Step 2: To ensure that the device can simulate a variety of different radar operating scenarios, including different types of interference signals and complex electromagnetic environments, and to achieve a more comprehensive test of the radar, making the test results of the radar's anti-jamming performance more accurate. Therefore, this device has multiple test methods. First, start the second signal generator to generate radar signals, start the first signal generator to generate different interference signals, and flexibly adjust the key indicators of the interference signals such as intensity, frequency, and bandwidth to meet the requirements of different test scenarios. During the process, the first motor can also be used to drive the first one-way threaded rod to rotate. The first one-way threaded rod is threadedly connected to the sliding frame, thereby enabling the sliding frame to slide inside the fixed frame and adjusting the distance between the first signal generator and the mounting plate to provide test requirements at different distances. The first test method is to drive the rotating disk to rotate through the fourth motor. The rotating disk drives the mounting plate and the second signal generator to rotate. The signal processor modulates, amplifies, and filters the radar signals emitted by the second signal generator in the rotating state. Then the receiver receives the radar echo signals, and the generated data is transmitted to the control panel. The data acquisition and processing system inside the control panel analyzes the signals to achieve the test of the radar's anti-jamming performance in the moving state. The second test method is to add water to the simulation box and drive the second one-way threaded rod to rotate through the second motor, thereby driving the second signal generator to move down into the water source. The signal processor modulates, amplifies, and filters the radar signals emitted by the second signal generator surrounded by the water source. Then the receiver receives the radar echo signals, and the generated data is transmitted to the control panel. The data acquisition and processing system inside the control panel analyzes the signals to achieve the test of the radar's anti-jamming performance inside the water body. The third test method is to blow air towards the second signal generator by starting the blower, and the control panel adjusts the wind speed blown by the blower towards the second signal generator. The signal processor modulates, amplifies, and filters the radar signals emitted by the second signal generator in the state of different wind speed flows. Then the receiver receives the radar echo signals, and the generated data is transmitted to the control panel. The data acquisition and processing system inside the control panel analyzes the signals to achieve the test of the radar's anti-jamming performance under the influence of different wind speeds. The fourth test method is to energize the magnetic coil inside the inner cavity to provide a complex electromagnetic environment around the second signal generator. The signal processor modulates, amplifies, and filters the radar signals emitted by the second signal generator under the influence of the electromagnetic environment. Then the receiver receives the radar echo signals, and the generated data is transmitted to the control panel. The data acquisition and processing system inside the control panel analyzes the signals to achieve the test of the radar's anti-jamming performance under electromagnetic influence. The overall structure of the device meets the test of the radar's anti-jamming performance under different environments and different interference conditions, making the test results of the radar's anti-jamming performance more comprehensive and accurate.
[0017] The present invention has at least the following beneficial effects:
[0018] 1. When the present invention is in use, the third motor drives the bidirectional threaded rod to rotate. The bidirectional threaded rod is threadedly connected to the clamping plates, thereby driving the two clamping plates to move left and right to adjust the distance between the two clamping plates. Then, the mounting plate is snap-fitted to the rotating disks inside the two clamping plates through the connecting columns. At the same time, the positioning columns are inserted into the positioning holes to limit the positions of the connecting columns, enabling the device to install and fix mounting plates and second signal generators of different sizes, and improving the scope of application of the device.
[0019] 2. The present invention drives the second signal generator to rotate through the fourth motor, and can test the radar anti-interference performance under moving states. By adding water into the simulation box, the second motor drives the second one-way threaded rod to rotate, driving the second signal generator to move downward into the water body, and can test the radar anti-interference performance in the water body. By blowing air at the second signal generator through the fan, the radar anti-interference performance under the influence of different wind speeds can be tested. By energizing the magnetic coil to provide a complex electromagnetic environment for the simulation box, the radar anti-interference performance under the influence of different electromagnetic environments can be tested, meeting the anti-interference performance tests of the radar in multiple scenario states.
[0020] 3. Multiple scenarios of the present invention are formed inside the simulation box, and it is not necessary to replace the position of the second signal generator to meet the tests of the radar anti-interference performance under different environments and different interference conditions, making the test results of the radar anti-interference performance more comprehensive and accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is an isometric structural schematic diagram of one side of the present invention;
[0022] Figure 2 is an isometric structural schematic diagram of the other side of the present invention;
[0023] Figure 3 is a schematic diagram of the internal structure of the simulation box of the present invention;
[0024] Figure 4 is a front view sectional structural schematic diagram of the present invention;
[0025] Figure 5 is a side view sectional structural schematic diagram of the present invention;
[0026] Figure 6 is a structural schematic diagram of the moving plate of the present invention;
[0027] Figure 7 is a structural schematic diagram of the clamping plate of the present invention;
[0028] Figure 8 is a structural schematic diagram of the mounting plate of the present invention.
[0029] In the figure: simulation box 1, control panel 2, signal processor 3, fixed frame 4, fixed plate 5, receiver 6, sliding frame 7, first signal generator 8, first one-way threaded rod 9, first motor 10, first guide rod 11, second one-way threaded rod 12, moving plate 13, second motor 14, second guide rod 15, bidirectional threaded rod 16, clamping plate 17, third motor 18, third guide rod 19, mounting plate 20, second signal generator 21, connecting column 22, positioning column 23, rotating disk 24, positioning hole 25, fourth motor 26, protective cover 27, L-shaped plate 28, fan 29, inner cavity 30, magnetic coil 31, water outlet pipe 32. Detailed implementation
[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0031] Please refer to Figure 1-8
[0032] Embodiment 1
[0033] A multi-scenario test device for the anti-interference performance of a radar, including a simulation box 1, a fixed frame 4 fixedly connected to one side of the simulation box 1, a sliding frame 7 slidably connected inside the fixed frame 4, a first signal generator 8 fixedly connected to one side inside the sliding frame 7, a second one-way threaded rod 12 rotatably connected inside the simulation box 1, a moving plate 13 threadedly connected to the outside of the second one-way threaded rod 12, a bidirectional threaded rod 16 rotatably connected to one side of the moving plate 13, clamping plates 17 symmetrically threadedly connected to the outside of the bidirectional threaded rod 16, a mounting plate 20 arranged between the two clamping plates 17, a second signal generator 21 fixedly connected to the top of the mounting plate 20, connecting columns 22 symmetrically fixedly connected to one side of the mounting plate 20, a rotating disk 24 rotatably connected inside the clamping plate 17, an L-shaped plate 28 fixedly connected to one side of the moving plate 13, a fan 29 fixedly connected inside the L-shaped plate 28, an inner cavity 30 arranged on one side inside the simulation box 1, and a magnetic coil 31 arranged inside the inner cavity 30;
[0034] Specific implementation process: The second signal generator 21 is installed between two clamping plates 17 through the connection of the mounting plate 20. Start the second signal generator 21 to generate radar signals, and start the first signal generator 8 to generate different interference signals. Flexibly adjust the key indicators of the interference signals, such as intensity, frequency, and bandwidth, to meet the requirements of different test scenarios. During the process, the first motor 10 can also be used to drive the first one-way threaded rod 9 to rotate. The first one-way threaded rod 9 is threadedly connected to the sliding frame 7, so as to realize the sliding of the sliding frame 7 inside the fixed frame 4 and adjust the distance between the first signal generator 8 and the mounting plate 20 to provide test requirements at different distances. The first test method is to drive the rotating disk 24 to rotate through the fourth motor 26. The rotating disk 24 drives the mounting plate 20 and the second signal generator 21 to rotate. The signal processor 3 modulates, amplifies, and filters the radar signals emitted by the second signal generator 21 in the rotating state, and then the receiver 6 receives the radar echo signals. The generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signals to realize the test of the anti-interference performance of the radar in the moving state. The second test method is to add water source into the simulation box 1. The second motor 14 is used to drive the second one-way threaded rod 12 to rotate, and then drive the second signal generator 21 to move down into the water source. The signal processor 3 modulates, amplifies, and filters the radar signals emitted by the second signal generator 21 surrounded by the water source, and then the receiver 6 receives the radar echo signals. The generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signals to realize the test of the anti-interference performance of the radar inside the water body. The third test method is to blow air to the second signal generator 21 by starting the blower 29. The control panel 2 adjusts the wind speed of the blower 29 blowing to the second signal generator 21. The signal processor 3 modulates, amplifies, and filters the radar signals emitted by the second signal generator 21 in the state of different wind speeds flowing through, and then the receiver 6 receives the radar echo signals. The generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signals to realize the test of the anti-interference performance of the radar under the influence of different wind speeds. The fourth test method is to energize the magnetic coil 31 inside the inner cavity 30 to provide a complex electromagnetic environment around the second signal generator 21. The signal processor 3 modulates, amplifies, and filters the radar signals emitted by the second signal generator 21 under the influence of the electromagnetic environment, and then the receiver 6 receives the radar echo signals. The generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signals to realize the test of the anti-interference performance of the radar under the influence of electromagnetic fields. The overall structure of the device meets the test of the anti-interference performance of the radar under different environments and different interference conditions, making the test results of the anti-interference performance of the radar more comprehensive and accurate.
[0035] A testing method for a multi-scenario testing device of radar anti-jamming performance, comprising the following steps:
[0036] Step 1: First, it is necessary to install and fix the signal generator to be tested. Start the second motor 14 to drive the second one-way threaded rod 12 to rotate. The second one-way threaded rod 12 is threadedly connected to the moving plate 13, thereby driving the moving plate 13 to drive the clamping plate 17 assembly to move upward, moving the clamping plate 17 out of the simulation box 1. Then, fixedly install the second signal generator 21 on the top of the mounting plate 20. Drive the bidirectional threaded rod 16 to rotate through the third motor 18. The bidirectional threaded rod 16 is threadedly connected to the clamping plate 17, thereby driving the two clamping plates 17 to move left and right, adjusting the distance between the two clamping plates 17, enabling the device to install and fix mounting plates 20 and second signal generators 21 of different sizes, improving the applicable range of the device. Then, the mounting plate 20 is snap-connected to the rotating disks 24 inside the two clamping plates 17 through the connecting columns 22. At the same time, the positioning columns 23 are inserted into the positioning holes 25 to limit the position of the connecting columns 22. Then, by adjusting the distance between the two clamping plates 17, the clamping and fixing of the mounting plate 20 and the second signal generator 21 are completed;
[0037] Step 2: To ensure that the device can simulate a variety of different radar operating scenarios, including different types of interference signals and complex electromagnetic environments, and to conduct a more comprehensive test on the radar, making the test results of the radar's anti-jamming performance more accurate. Therefore, this device has multiple test methods. First, start the second signal generator 21 to generate radar signals, and start the first signal generator 8 to generate different interference signals. Flexibly adjust the key indicators of the interference signals, such as intensity, frequency, and bandwidth, to meet the requirements of different test scenarios. During the process, the first motor 10 can also be used to drive the first one-way threaded rod 9 to rotate. The first one-way threaded rod 9 is threadedly connected to the sliding frame 7, thereby realizing the sliding of the sliding frame 7 inside the fixed frame 4 and adjusting the distance between the first signal generator 8 and the mounting plate 20 to provide test requirements at different distances. The first test method is to drive the rotating disk 24 to rotate through the fourth motor 26. The rotating disk 24 drives the mounting plate 20 and the second signal generator 21 to rotate. The signal processor 3 modulates, amplifies, and filters the radar signals emitted by the second signal generator 21 in the rotating state. Then, the receiver 6 receives the radar echo signals, and the generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signals to realize the test of the radar's anti-jamming performance in the moving state. The second test method is to add water source into the simulation box 1. The second motor 14 is used to drive the second one-way threaded rod 12 to rotate, and then drive the second signal generator 21 to move down into the water source. The signal processor 3 modulates, amplifies, and filters the radar signals emitted by the second signal generator 21 surrounded by the water source. Then, the receiver 6 receives the radar echo signals, and the generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signals to realize the test of the radar's anti-jamming performance inside the water body. The third test method is to blow air to the second signal generator 21 by starting the blower 29. The control panel 2 adjusts the wind speed blown by the blower 29 to the second signal generator 21. The signal processor 3 modulates, amplifies, and filters the radar signals emitted by the second signal generator 21 in the state of different wind speeds flowing through. Then, the receiver 6 receives the radar echo signals, and the generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signals to realize the test of the radar's anti-jamming performance under the influence of different wind speeds. The fourth test method is to energize the magnetic coil 31 inside the inner cavity 30 to provide a complex electromagnetic environment around the second signal generator 21. The signal processor 3 modulates, amplifies, and filters the radar signals emitted by the second signal generator 21 under the influence of the electromagnetic environment. Then, the receiver 6 receives the radar echo signals, and the generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signals to realize the test of the radar's anti-jamming performance under the influence of electromagnetic fields. The overall structure of the device meets the test of the radar's anti-jamming performance under different environments and different interference conditions.Make the anti-jamming performance test results of the radar more comprehensive and accurate.
[0038] Embodiment 2
[0039] Based on Embodiment 1: A control panel 2 and a signal processor 3 are respectively fixedly connected to adjacent sides of the simulation box 1. A fixing plate 5 is fixedly connected to the top of the fixing frame 4, and a receiver 6 is fixedly connected to one side of the fixing plate 5;
[0040] The start and stop of multiple driving mechanisms are controlled through the control panel 2, and the adjustment of different rotation speeds of the fan 29 is performed to realize the anti-jamming performance test of the radar under the influence of different wind speeds. The magnetic field environment of the magnetic coil 31 is adjusted to realize the anti-jamming performance test of the radar in different electromagnetic environments. The receiver 6 receives the radar echo signal, and the generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signal to obtain the test result.
[0041] Embodiment 3
[0042] Based on Embodiment 1: One end of a first one-way threaded rod 9 is threadedly connected inside the sliding frame 7. One end of the first one-way threaded rod 9 is fixedly connected to the output end of a first motor 10. One side of the first motor 10 is fixedly connected to one side of the fixing frame 4. The other end inside the sliding frame 7 is slidably connected to a first guide rod 11, and the first guide rod 11 and the fixing frame 4 are fixedly connected;
[0043] The first one-way threaded rod 9 is driven to rotate by the first motor 10. The first one-way threaded rod 9 is threadedly connected to the sliding frame 7, thereby realizing the sliding of the sliding frame 7 inside the fixing frame 4, adjusting the distance between the first signal generator 8 and the mounting plate 20, and providing test requirements at different distances. The first guide rod 11 ensures the stability of the movement of the sliding frame 7.
[0044] Embodiment 4
[0045] Based on Embodiment 1: One end of a second one-way threaded rod 12 is fixedly connected to the output end of a second motor 14. The second motor 14 is fixedly connected to the top of the simulation box 1. There are two moving plates 13. One of the moving plates 13 is slidably connected to a second guide rod 15 inside. The second guide rod 15 and the simulation box 1 are fixedly connected. One end of a two-way threaded rod 16 is fixedly connected to the output end of a third motor 18. The third motor 18 is fixedly connected inside the moving plate 13. One side of the moving plate 13 is fixedly connected to a third guide rod 19. The clamping plate 17 slides outside the third guide rod 19;
[0046] Start the second motor 14 to drive the second one-way threaded rod 12 to rotate. The second one-way threaded rod 12 is threadedly connected to the moving plate 13, thereby driving the moving plate 13 to drive the clamping plate 17 assembly to move upward, realizing the adjustment of the height position of the second signal generator 21. Drive the bidirectional threaded rod 16 to rotate through the third motor 18. The bidirectional threaded rod 16 is threadedly connected to the clamping plate 17, thereby driving the two clamping plates 17 to move left and right, adjusting the distance between the two clamping plates 17, and enabling the device to install and fix mounting plates 20 and second signal generators 21 of different sizes, improving the application range of the device.
[0047] Embodiment Five
[0048] Based on Embodiment One: The connection column 22 and the rotating disk 24 are in a snap-fit connection. The inside of the rotating disk 24 is circularly and evenly provided with positioning holes 25. The connection column 22 is snap-fitted to the positioning holes 25 through the positioning posts 23. One side of the rotating disk 24 is fixedly connected to the output end of the fourth motor 26. One of the clamping plates 17 is fixedly connected with a protective cover 27. One side inside the simulation box 1 is fixedly connected with a water outlet pipe 32.
[0049] The mounting plate 20 is snap-fitted to the rotating disks 24 inside the two clamping plates 17 through the connection column 22. At the same time, the positioning post 23 is inserted into the positioning hole 25 to limit the position of the connection column 22, realizing the quick installation and fixation of the second signal generator 21. Drive the rotating disk 24 to rotate through the fourth motor 26. The rotating disk 24 drives the mounting plate 20 and the second signal generator 21 to rotate. The signal processor 3 modulates, amplifies, and filters the radar signals emitted by the second signal generator 21 in the rotating state. Then the receiver 6 receives the radar echo signals, and the generated data is transmitted to the control panel 2. The data acquisition and processing system inside the control panel 2 analyzes the signals, realizing the test of the anti-interference performance of the radar in the moving state.
[0050] 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 actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0051] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A radar anti-interference performance multi-scenario test device, comprising a simulation box (1), characterized in that: One side of the simulation box (1) is fixedly connected to a fixed frame (4), the fixed frame (4) is slidably connected to a sliding frame (7), one side of the sliding frame (7) is fixedly connected to a first signal generator (8), the simulation box (1) is rotatably connected to a second unidirectional threaded rod (12), the outer side of the second unidirectional threaded rod (12) is threadedly connected to a moving plate (13), one side of the moving plate (13) is rotatably connected to a bidirectional threaded rod (16), the outer side of the bidirectional threaded rod (16) is symmetrically threadedly connected to a clamping plate (17), and the two clamping plates (16) are rotatably connected to each other. A mounting plate (20) is arranged between the holding plates (17), a second signal generator (21) is fixedly connected to the top of the mounting plate (20), a connecting column (22) is symmetrically fixedly connected to one side of the mounting plate (20), a rotating disk (24) is rotatably connected inside the clamping plate (17), an L-shaped plate (28) is fixedly connected to one side of the movable plate (13), a fan (29) is fixedly connected inside the L-shaped plate (28), an inner cavity (30) is arranged on one side of the simulation box (1), and a magnetic coil (31) is arranged inside the inner cavity (30).
2. A radar anti-interference performance multi-scenario test device according to claim 1, characterized in that: Adjacent sides of the simulation box (1) are respectively fixedly connected with a control panel (2) and a signal processor (3).
3. The radar anti-interference performance multi-scenario test device according to claim 1, characterized in that: A fixing plate (5) is fixedly connected to the top of the fixing frame (4), and a receiver (6) is fixedly connected to one side of the fixing plate (5).
4. The radar anti-interference performance multi-scenario test device according to claim 1, characterized in that: A first one-way threaded rod (9) is threadedly connected to one end of the sliding frame (7), one end of the first one-way threaded rod (9) is fixedly connected to the output end of a first motor (10), one side of the first motor (10) is fixedly connected to one side of a fixed frame (4), and a first guide rod (11) is slidably connected to the other end of the sliding frame (7), and the first guide rod (11) and the fixed frame (4) are fixedly connected.
5. The radar anti-interference performance multi-scenario test device according to claim 1, characterized in that: One end of the second one-way threaded rod (12) is fixedly connected to the output end of the second motor (14), and the second motor (14) is fixedly connected to the top of the simulation box (1).
6. The radar anti-interference performance multi-scenario test device according to claim 1, characterized in that: Two movable plates (13) are provided, and a second guide rod (15) is slidably connected inside one of the movable plates (13), and the second guide rod (15) and the simulation box (1) are fixedly connected.
7. The radar anti-interference performance multi-scenario test device according to claim 1, characterized in that: One end of the bidirectional threaded rod (16) is fixedly connected to the output end of the third motor (18), the third motor (18) is fixedly connected to the inside of the movable plate (13), one side of the movable plate (13) is fixedly connected to a third guide rod (19), and the clamping plate (17) slides outside the third guide rod (19).
8. The radar anti-interference performance multi-scenario test device according to claim 1, characterized in that: The connecting column (22) and the rotating disk (24) are snap-fitted together. The rotating disk (24) is circularly provided with a positioning hole (25). The connecting column (22) is snap-fitted with the positioning hole (25) via the positioning column (23). One side of the rotating disk (24) is fixedly connected to the output end of the fourth motor (26). The clamping plate (17) is fixedly connected to a protective cover (27).
9. The radar anti-interference performance multi-scenario test device according to claim 1, characterized in that: A water outlet pipe (32) is fixedly connected to one side of the interior of the simulation box (1).
10. The test method of a radar anti-interference performance multi-scenario test device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: First, the signal generator to be tested needs to be installed and fixed, the second motor (14) is started to drive the second unidirectional threaded rod (12) to rotate, the second unidirectional threaded rod (12) is threadedly connected to the moving plate (13), and then the moving plate (13) is driven to drive the clamping plate (17) assembly to move upward, the clamping plate (17) is moved out of the simulation box (1), and then the second signal generator (21) is fixedly installed on the top of the mounting plate (20); the bidirectional threaded rod (16) is driven to rotate by the third motor (18), the bidirectional threaded rod (16) is threadedly connected to the clamping plate (17), and then the two clamping plates ( 17) is moved left and right to adjust the distance between the two clamping plates (17), so that the device can install and fix the installation plates (20) and the second signal generator (21) of different sizes, thereby improving the application range of the device. Then, the installation plate (20) is engaged and connected with the rotating disk (24) inside the two clamping plates (17) through the connecting column (22). At the same time, the positioning column (23) is inserted into the positioning hole (25) to limit the position of the connecting column (22). Then, by adjusting the distance between the two clamping plates (17), the installation plate (20) and the second signal generator (21) are clamped and fixed; Step 2: To ensure that the device can simulate a variety of different radar working scenarios, including different types of interference signals and complex electromagnetic environments, to achieve a more comprehensive test of the radar, and to make the radar anti-interference performance test results more accurate, the device has a variety of test methods. First, the second signal generator (21) is started to generate a radar signal, and the first signal generator (8) is started to generate different interference signals. The intensity, frequency, and bandwidth key indicators of the interference signal are flexibly adjusted to meet the requirements of different test scenarios. During the process, the first motor (10) can also be used to drive the first unidirectional threaded rod (9) to rotate. The first unidirectional threaded rod (9) is threadedly connected to the sliding frame (7), thereby enabling the sliding frame (7) to slide inside the fixed frame (4). The first The distance between the signal generator (8) and the mounting plate (20) provides test requirements at different distances. The first test method is to drive the rotating disk (24) to rotate through the fourth motor (26), and the rotating disk (24) drives the mounting plate (20) and the second signal generator (21) to rotate. The signal processor (3) modulates, amplifies, and filters the radar signal emitted by the second signal generator (21) in the rotating state. Then the receiver (6) receives the radar echo signal, and the generated data is transmitted to the control panel (2). The data acquisition and processing system inside the control panel (2) analyzes the signal to realize the test of the anti-interference performance of the radar in the moving state. The second test method is to add water to the inside of the simulation box (1). The second motor (14) drives the second unidirectional threaded rod (12) to rotate, thereby driving the second signal generator (21) to move downward into the water source. The signal processor (3) modulates, amplifies, and filters the radar signal emitted by the second signal generator (21) surrounded by the water source. Then the receiver (6) receives the radar echo signal, and the generated data is transmitted to the control panel (2). The data acquisition and processing system inside the control panel (2) analyzes the signal to test the anti-interference performance of the radar inside the water body. The third test method is to start the fan (29) to blow air to the second signal generator (21). The control panel (2) adjusts the wind speed of the fan (29) blowing to the second signal generator (21). The signal processor ( 3) modulating, amplifying and filtering the radar signal emitted by the second signal generator (21) under different wind speed flow conditions, and then the receiver (6) receives the radar echo signal, and the generated data is transmitted to the control panel (2). The data acquisition and processing system inside the control panel (2) analyzes the signal to test the anti-interference performance of the radar under the influence of different wind speeds. The fourth test method is to energize the magnetic coil (31) inside the inner cavity (30) to provide a complex electromagnetic environment around the second signal generator (21). The signal processor (3) modulates, amplifies and filters the radar signal emitted by the second signal generator (21) under the influence of the electromagnetic environment, and then the receiver (6) receives the radar echo signal.The generated data is transmitted to the control panel (2), and the data acquisition and processing system inside the control panel (2) analyzes the signal to test the anti-interference performance of the radar under electromagnetic influence. The overall structure of the device meets the requirements for testing the anti-interference performance of the radar under different environments and different interference conditions, making the anti-interference performance test results of the radar more comprehensive and accurate.