CN212989633U - Camera scanning radar test system - Google Patents
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- CN212989633U CN212989633U CN202020719738.4U CN202020719738U CN212989633U CN 212989633 U CN212989633 U CN 212989633U CN 202020719738 U CN202020719738 U CN 202020719738U CN 212989633 U CN212989633 U CN 212989633U
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Abstract
The utility model relates to a reliability test technical field discloses a camera scanning radar test system. The phase scanning radar test system simulates the working environment stress of the phase scanning radar through an environment test system; the installation of the phase scanning radar is realized through a clamping test system, and the rotation state of the phase scanning radar is simulated; absorbing the electromagnetic waves emitted by the phase-scanning radar through a microwave absorption system, and preventing the electromagnetic waves from damaging an antenna of the phase-scanning radar; and the testing and analyzing system is used for testing and analyzing the key technical indexes of the phase-scanning radar. Through the utility model provides a radar test system is swept to machine looks not only can simulate in the laboratory the comprehensive environment stress condition that the radar was stood is swept to machine looks still can effectively be examined the rotation of the antenna of radar is swept to machine looks with the electromagnetic radiation ability of radar is swept to machine looks can effectively improve experimental authenticity and accuracy.
Description
Technical Field
The utility model relates to a reliability test technical field especially relates to a radar test system is swept to camera.
Background
With the technical progress and the improvement of the use requirement, the phase-sweeping radar becomes an important direction for the development of the current airborne radar technology. The antenna of the phase-scan radar adopts a phased array system, and can be driven by a servo mechanism to scan in different directions and angles, and the scanning comprises the characteristics of antenna rotation scanning, distributed emission, beam space synthesis and the like. The phase scanning radar is not only subjected to environmental stress conditions such as temperature, humidity and vibration in actual use, but also subjected to the influence of working stress conditions such as antenna rotation scanning and electromagnetic wave radiation. Therefore, the actual working state simulation of the phase-scanning radar needs to consider the environmental stress condition and the working stress condition at the same time.
The traditional laboratory test method mainly aims at pure mechanical scanning radars or phased array radars with non-rotating antennas, the former has insufficient examination on the electromagnetic wave radiation capability of the radars, the latter does not realize the comprehensive verification on the rotation and electromagnetic radiation functions of the antennas, and the existing test conditions are difficult to meet the comprehensive simulation test requirements of the actual working state of the phased array radars. Therefore, how to simulate the actual working state of a new-system radar system, namely an electromechanical scanning radar, under laboratory conditions and examine and verify key technical indexes of the radar, such as the radiation power and the like, is a problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
Therefore, a phase-scanning radar test system is needed to be provided for the problems of simulating the actual working state of the phase-scanning radar under laboratory conditions and checking and verifying key technical indexes such as the radiation power of the phase-scanning radar.
The phase-scan radar test system comprises a clamping test system, a phase-scan radar test system and a control system, wherein the clamping test system is connected with the phase-scan radar and is used for realizing the installation of the phase-scan radar and simulating the rotation state of the phase-scan radar; the environment test system is connected with the clamping test system and used for simulating the working environment stress of the phase scanning radar; the microwave absorption system is connected with the environment test system and is used for absorbing the electromagnetic waves transmitted by the phase-scanning radar; and the test analysis system is respectively connected with the environmental test system and the microwave absorption system and is used for setting the working mode of the phase scanning radar, controlling and monitoring the radiation state of the phase scanning radar and testing the preset technical indexes of the phase scanning radar.
In one embodiment, the environmental test system comprises a vibration table for simulating the vibration environmental stress of the phase-scanning radar; and the temperature and humidity test box is fixed on the vibration table, at least part of the vibration table is positioned in the temperature and humidity test box, and the temperature and humidity test box is used for simulating the temperature environmental stress and the humidity environmental stress of the camera scanning radar.
In one embodiment, the environmental test system further includes a control module, which is respectively connected to the vibration table and the temperature and humidity test chamber, and is configured to adjust a vibration frequency and a vibration magnitude of the vibration table, and adjust a temperature and a humidity in the temperature and humidity test chamber.
In one embodiment, the temperature and humidity test chamber comprises a temperature sensor, the temperature sensor is fixed in the temperature and humidity test chamber, is connected with the control module, and is used for monitoring the temperature in the temperature and humidity test chamber in real time; the humidity sensor is fixed in the temperature and humidity test box, connected with the control module and used for monitoring the humidity in the temperature and humidity test box in real time; the control module is also used for monitoring the operating curves of the temperature and the humidity in the temperature and humidity test box.
In one embodiment, the vibration table further comprises an acceleration sensor fixed on the vibration table, connected with the control module and used for monitoring the acceleration response of the vibration table in real time; the control module is also used for monitoring a vibration control curve of the vibration table.
In one embodiment, the clamping test system comprises a mounting clamp for fixedly connecting the phase scanning radar; and the mounting fixture is connected with the vibration table through the transition adapter plate.
In one embodiment, the mounting fixture comprises a connecting piece, the connecting piece is a cylindrical structure with an opening, and at least one cable through hole is formed in the side wall of the cylinder of the connecting piece; the bottom plate, the bottom plate with the connecting piece is kept away from the one side perpendicular connection of trompil, the bottom plate with still be connected with a plurality of strengthening ribs between the connecting piece.
In one embodiment, the transition adapter plate is a stainless steel plate, the transition adapter plate further comprises a plurality of mounting holes, and the base plate of the mounting fixture is connected with the transition adapter plate through the mounting holes.
In one embodiment, the microwave absorption system comprises a wave absorption device, which is fixed on the inner wall of the temperature and humidity test chamber and is used for absorbing electromagnetic waves emitted to the temperature and humidity test chamber when the phase-scan radar radiates; one side wall of the temperature and humidity test box is the wave-transmitting panel, and the wave-transmitting panel is used for enabling the electromagnetic waves which cannot be absorbed by the wave absorbing device to be transmitted out of the temperature and humidity test box; and the microwave darkroom is connected with the wave-transmitting panel and is used for absorbing the electromagnetic waves transmitted through the wave-transmitting panel and radiated to the microwave darkroom.
In one embodiment, the test analysis system comprises a test control module, which is connected with the phase-scan radar and used for controlling the working mode of the phase-scan radar and controlling the on and off of the radiation function of the phase-scan radar; the receiving device is arranged in the microwave darkroom, is positioned on the same horizontal line with the antenna of the phase scanning radar and is used for collecting electromagnetic wave signals radiated by the phase scanning radar; and the spectrum analyzer is connected with the receiving device and is used for receiving and monitoring the electromagnetic wave signals radiated by the phase-scan radar and judging whether the radiation state of the phase-scan radar is normal or not.
The testing system of the phase-scanning radar simulates the working environment stress of the phase-scanning radar through the environment testing system; the clamping test system realizes the installation of the phase scanning radar and simulates the rotation state of the phase scanning radar; the microwave absorption system absorbs the electromagnetic waves emitted by the phase-scan radar and prevents the electromagnetic waves from damaging an antenna of the phase-scan radar; the test analysis system is used for testing and analyzing key technical indexes of the phase-scanning radar. Through the utility model provides a radar test system is swept to machine looks not only can simulate in the laboratory the comprehensive environment stress condition that the radar was stood is swept to machine looks, can effectively examine moreover the rotation of the antenna of radar is swept to machine looks with the electromagnetic radiation ability of radar is swept to machine looks, has solved the tradition and has swept not enough and defect that the radar was experimental to machine looks, can effectively improve experimental authenticity and accuracy.
Drawings
Fig. 1 is a block diagram of a phase-scanning radar test according to an embodiment of the present invention;
fig. 2 is a structural diagram of a phase-sweeping radar test system according to an embodiment of the present invention.
Description of reference numerals: 110-mounting fixture, 120-transition adapter plate, 210-vibration table, 211-vibration controller, 220-temperature and humidity test box, 230-monitoring computer, 310-wave absorbing device, 320-wave transmitting panel, 330-microwave darkroom, 410-testing computer, 420-receiving device, 430-spectrum analyzer, 21-radar processing unit, 22-radar servo unit and 23-radar antenna unit (21-23 jointly form a phase-scanning radar system).
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," "circumferential," and the like are based on the orientation or positional relationship shown in the drawings and are intended to facilitate the description of the invention and to simplify the description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The traditional radar reliability test method mainly aims at pure mechanical scanning radars or phased array radars with non-rotating antennas, wherein the scanning capability and reliability of radar antennas are mainly examined by the pure mechanical scanning radars or the phased array radars with non-rotating antennas, but the examination on the emission function of the radars is not sufficient; the latter mainly verifies the electromagnetic radiation capability of the radar antenna, but does not relate to the examination of the rotation capability of the antenna. The mechanical scanning radar is subjected to environmental stress conditions during actual work, the antenna needs to be scanned in different directions and different pitching angles, a wide darkroom environment is needed to meet the requirements of radar radiation and power synthesis tests, and the existing test method and test system are difficult to meet the requirements of actual working state simulation and key technical index check and verification of the mechanical scanning radar.
In order to solve the problem, the utility model provides a radar test system is swept to camera. Fig. 1 is a structural block diagram of a phase scanning radar test according to an embodiment of the present invention, which includes a clamping test system 100, an environmental test system 200, a microwave absorption system 300, and a test analysis system 400. The clamping test system 100 is connected with the phase scanning radar, and is used for realizing the installation of the phase scanning radar and simulating the rotation state of the phase scanning radar. The environment test system 200 is connected to the clamping test system 100, and is configured to simulate a working environment stress of the phase scanning radar. The microwave absorption system 300 is connected to the environmental test system 200, and is configured to absorb electromagnetic waves emitted by the phase-scanning radar. The test analysis system 400 is connected to the environmental test system 200 and the microwave absorption system 300, and is configured to set a working mode of the phase scanning radar, control and monitor a radiation state of the phase scanning radar, and test a preset technical index of the phase scanning radar.
By constructing the phase-scan radar test system consisting of the clamping test system 100, the environment test system 200, the microwave absorption system 300 and the test analysis system 400, the simulation of the comprehensive environmental stress, the antenna rotation and the electromagnetic radiation of the phase-scan radar can be carried out in a real working state, the technical problem that the antenna rotation and the electromagnetic radiation capability of the phase-scan radar cannot be checked under the comprehensive environmental conditions of temperature, humidity and vibration when the phase-scan radar is subjected to a reliability test in a laboratory at present is solved, and a scientific and feasible test system is provided for developing the reliability test of the phase-scan radar.
Fig. 2 is the utility model discloses a quick-witted looks sweep radar test system of one of them embodiment constitutes the picture, wherein, 110 is mounting fixture, 120 is the transition keysets, 210 is the shaking table, 211 is vibration controller, 220 is temperature and humidity test box, 230 is the supervisory control computer, 310 is the wave absorbing device, 320 is the wave-transparent panel, 330 is the anechoic chamber, 410 is the test computer, 420 is receiving arrangement, 430 is the spectral analysis appearance, 21 is the radar processing unit, 22 is the radar servo unit, 23 is radar antenna element (21-23 constitute quick-witted looks sweep radar system jointly). In order to better explain the testing steps of the phase scanning radar testing system when performing the reliability test on the phase scanning radar, the phase scanning radar system 20 composed of the radar processing unit 21, the radar servo unit 22 and the radar antenna unit 23 is taken as an example for explanation, but the limitation to the scope of the present invention cannot be understood accordingly.
In one embodiment, the clamping test system 100 includes a mounting fixture 110 and a transition adapter plate 120. The mounting fixture 110 is used for fixedly connecting the phase scanning radar 20. After the camera scanning radar 20 is connected to the installation fixture 110, the installation fixture 110 is connected to the environmental test system 200 through the transition adapter plate 120. The clamping test system 100 can fix the phase scanning radar 20 in the environment test system 200, and can also enable the radar antenna unit 23 of the phase scanning radar 20 to rotate so as to simulate the rotation condition of the radar antenna unit 23 when the phase scanning radar 20 is in a real working state.
In one embodiment, the mounting fixture 110 includes a connector (not shown), a base plate (not shown), and a stiffener (not shown). The connecting piece is for having the cylinder structure of an trompil, at least one cable via hole has been seted up on the cylinder lateral wall of connecting piece, be convenient for camera scanning radar 20 with mounting fixture 110 is connected fixedly after can also stretch out the cable from the cable via hole, makes the cable between radar processing unit 21 and the radar servo unit 22 realizes connecting. The bottom plate with the connecting piece is kept away from the one side perpendicular connection of trompil, the bottom plate is fixed in through the welded mode the connecting piece is kept away from the bottom surface of trompil. The bottom plate with still be connected with a plurality of strengthening ribs between the connecting piece, a plurality of strengthening ribs also are used to be fixed in through the welded mode the bottom plate with between the connecting piece for increase the steadiness of connecting piece. The radar processing unit 21 of the camera scanning radar 20 is fixed on the bottom plate of the mounting fixture 110 in a screw connection manner, the lower end of the radar servo unit 22 is fixed inside the hole of the connecting piece through a screw, and the upper end of the radar servo unit 22 is connected with the radar antenna unit 23. After the installation fixture 110 is fixedly connected with the phase scanning radar 20, the radar antenna unit 23 of the phase scanning radar 20 can also rotate, so as to simulate the rotation condition of the radar antenna unit 23 when the phase scanning radar 20 is in a real working state.
In one embodiment, the transition adapter plate 120 is a stainless steel plate, the transition adapter plate 120 further includes a plurality of mounting holes, and the bottom plate of the mounting fixture 110 is connected to the transition adapter plate 120 through the plurality of mounting holes. The front and back sides of the transition adapter plate 120 are provided with a preset number of mounting holes (not shown) according to the mounting requirements of the phase-scanning radar and the environmental test system, and the transition adapter plate 120 is connected with the mounting fixture 110 through the mounting holes on the front side in a screw connection manner; the transition adapter plate 120 fixes the mounting fixture 110 in the environmental test system 200 through the mounting holes on the back surface in a screw connection manner, so as to prevent the machine-phase scanning radar 20 from falling down from the environmental test system under the action of environmental stress to cause damage in the reliability test process.
In one embodiment, the environmental test system 200 includes a vibration table 210 and a temperature and humidity test chamber 220. The vibration table 210 is configured to simulate a vibration environment stress of the phase scanning radar. The temperature and humidity test box 220 is fixed on the vibration table 210, at least part of the vibration table 210 is located in the temperature and humidity test box 220, and the temperature and humidity test box 220 is used for simulating temperature environmental stress and humidity environmental stress of the machine phase scanning radar 20. The phase scanning radar 20 is installed in the environmental test system 200, and when the actual working environment of the phase scanning radar is simulated to perform a function assessment test, the vibration table 210 applies a vibration stress to the phase scanning radar 20 to simulate the vibration which may be encountered by the phase scanning radar 20 in actual use; the temperature and humidity test chamber 120 applies temperature stress and humidity stress to the phase scanning radar 20 to simulate the temperature and humidity that the phase scanning radar 20 may encounter in actual use.
In one embodiment, the environmental testing system 200 further includes a control module. The control module is respectively connected with the vibration table 210 and the temperature and humidity test box 220, and is used for adjusting the vibration frequency and the vibration magnitude of the vibration table 210 and adjusting the temperature and the humidity in the temperature and humidity test box 220. In this embodiment, a monitoring computer 230 is adopted as the control module to adjust the vibration frequency and the vibration magnitude of the vibration table 210 and the temperature and humidity in the temperature and humidity test chamber 220. The monitoring computer 230 is electrically connected to the vibration table 110 and the temperature and humidity test chamber 120, respectively.
The tester can adjust the environmental stress condition according to the established reliability of the phase scanning radar 20 through the monitoring computer 230. The control interface of the monitoring computer 230 is used to set the temperature and humidity profiles, and the temperature and humidity test chamber 220 is controlled to automatically operate according to the set temperature and humidity conditions. The temperature and the humidity in the temperature and humidity test box 220 are adjusted by changing the temperature excitation signal and the humidity excitation signal transmitted to the temperature test box 220 by the control module, so that the temperature stress and the humidity stress applied to the phase scanning radar 20 are changed. The vibration stress condition is set by the monitoring computer 230, and the vibration table 210 is controlled by the vibration controller 211 to apply vibration according to the set vibration excitation condition. The monitoring computer 230 adjusts the vibration frequency and the vibration magnitude of the vibration table 210 by changing the vibration excitation signal transmitted from the vibration controller 211 to the vibration table 210, thereby changing the vibration stress applied to the phase scanning radar 20. Through the vibration table 210 and the temperature and humidity test box 220, three environmental stresses of temperature, humidity and vibration required by the phase scanning radar 20 test can be simulated, and the three stresses can be ensured to be applied simultaneously.
In one embodiment, the temperature and humidity test chamber 220 includes a temperature sensor (not shown) and a humidity sensor (not shown). The temperature sensor is fixed in the temperature and humidity test 220, connected with the control module and used for monitoring the temperature in the temperature and humidity test 220 in real time. The humidity sensor is fixed in the temperature and humidity test box 220, connected with the control module, and used for monitoring the humidity in the temperature and humidity test box 220 in real time. The control module is also used for monitoring the operating curves of the temperature and the humidity in the temperature and humidity test box. When the reliability test is performed on the camera scanning radar 20, the temperature sensor and the humidity sensor in the temperature and humidity test box 220 monitor the temperature and the humidity in real time, and feed the monitored temperature and humidity back to the monitoring computer 230. The monitoring computer 230 displays the temperature and humidity operation curves in the temperature and humidity test chamber 220 in real time according to the received temperature and humidity feedback, and testers can make corresponding adjustments to the test environment setting by observing the temperature and humidity operation curves and combining the test scheme.
In one embodiment, the vibration table 210 further comprises an acceleration sensor (not shown) fixed on the vibration table, connected to the control module, and configured to monitor an acceleration response of the vibration table; the control module is also used for monitoring the vibration and response operation curve of the vibration table. Similarly, when the reliability test of the camera-scan radar 20 is performed, the acceleration sensor on the vibration table 210 monitors the vibration response of the vibration table 210 in real time, and feeds back the monitored vibration response to the monitoring computer 230. The monitoring computer 230 displays the vibration control curve on the vibration table 210 in real time according to the received vibration response condition, and a tester can make corresponding adjustment on the test environment setting by observing the vibration response curve and combining a test scheme.
For mechanically swept pulsed doppler radar, the transmit power is output by a centralized transmitter. Therefore, when the reliability test is performed on the mechanical scanning radar, a radar transmission power test is generally performed by coupling a signal out of an output port of a transmitter, rather than a direct radiation test through a radar antenna, which is greatly different from an actual working mode of the radar.
The antenna of the phased array radar usually comprises a certain number of T/R, each T/R component is a small transmitter, the radiation power of each T/R component is synthesized in space, and the transmission power can be accurately measured only after the power is synthesized. Therefore, be in the utility model provides a when carrying out phased array radar reliability test among the quick-witted looks sweep radar test system, will the antenna of quick-witted looks sweep radar directly radiates to the microwave darkroom, calculates according to test equipment received radiation signal the transmitting power of quick-witted looks sweep radar.
In one embodiment, the microwave absorbing system 300 comprises a wave absorbing device 310, a wave-transparent panel 320 and a microwave chamber 330. The microwave absorption system 300 is used for realizing electromagnetic radial attitude simulation and electromagnetic wave capability absorption assessment of the camera scanning radar 20. The wave absorbing device 310 is fixed on an inner wall of the temperature and humidity test chamber 220, and is configured to absorb electromagnetic waves emitted to the temperature and humidity test chamber 220 when the phase-scan radar 20 radiates. One side wall of the temperature and humidity test chamber 220 is the wave-transmitting panel 320, and the wave-transmitting panel 320 is used for allowing the electromagnetic waves that cannot be absorbed by the wave-absorbing device 310 to pass through the temperature and humidity test chamber 220. The wave absorbing device 310 is a device which is formed by attaching wave absorbing materials on the surface of a metal frame, is installed inside the temperature and humidity test box 220 and is tightly attached to the inner wall of the wave transmitting panel 320, and can absorb electromagnetic waves leaked into the temperature and humidity test box 220 when the camera scans the radar 20 for radiation, so that the electromagnetic waves are prevented from damaging the antenna of the camera scanning radar 20. The wave-transparent panel 320 has a high transmittance (usually required to be over 90%) for electromagnetic waves, and the electromagnetic waves emitted by the camera scanning radar 20 can be effectively radiated to the darkroom 330 through the wave-transparent panel 320 and absorbed in the darkroom 330, so as to prevent the electromagnetic waves from interfering with the test.
In one embodiment, the test analysis system 400 includes a test control module, a receiving device, and a spectrum analyzer 430. The test analysis system 400 is used for setting a working mode of the phase scanning radar 20, controlling and monitoring a radiation state of the phase scanning radar 20, and evaluating key technical index tests such as the radiation power of the phase scanning radar 20. The test control module is connected with the phase scanning radar 20, and is configured to control a working mode of the phase scanning radar 20 and control the on and off of a radiation function of the phase scanning radar 20. The receiving device is arranged in the microwave darkroom, is positioned on the same horizontal line with the antenna of the phase scanning radar and is used for collecting electromagnetic wave signals radiated by the phase scanning radar. The spectrum analyzer 430 is connected to the receiving device, and is configured to receive and monitor the electromagnetic wave signal radiated by the phase-scan radar 20, and determine whether the radiation state of the phase-scan radar is normal. In this embodiment, the testing computer 410 is selected as the testing control module of the system; the receiving horn 420 is selected as the receiving device of the system.
The test computer 410 is connected with the radar processing unit 21, and a tester can perform test operation on the test computer 410 according to a test scheme so as to control the radar processing unit 21 to set the working mode of the phase scanning radar 20 and control the on and off of the radiation function of the phase scanning radar 20. The tester can monitor the waveform of the radiation of the phase-scan radar 20 and the state of the radiation by observing the spectrum analyzer 430. The receiving horn 420 installed in the anechoic chamber 330 faces the radar antenna unit 23 and is located on the same horizontal line with the center of the radar antenna unit 23. The receiving horn 420 receives the radiated signal from the radar antenna unit 23 and transmits the signal back to the spectrum analyzer 430 through a test cable. The spectrum analyzer 430 calculates the radiation power of the phase-scan radar 20 according to the radiation signal collected by the receiving horn 420.
The utility model provides a pair of radar test system is swept to machine is right 20 operating condition of radar are swept to machine is simulated. The actual working condition simulation of the phase scanning radar 20 includes comprehensive environmental stress condition simulation, antenna rotation state simulation and radar electromagnetic radiation simulation.
The comprehensive environmental stress conditions are first simulated. After the phase scanning radar 20 is installed in the environment testing system 200 through the clamping testing system 100, the temperature and humidity test box 220 in the environment testing system 200 is used for applying temperature and humidity stress to the phase scanning radar 20, and meanwhile, the vibration table 210 is used for applying vibration stress to the phase scanning radar 20. The tester monitors whether the temperature and humidity operation curve and the vibration control curve are within a specified tolerance range through the monitoring computer 230, and adjusts the environmental stress parameters according to the test profile.
The antenna rotation state is then simulated. Under simulated temperature, humidity, vibration integrated environmental conditions, the test computer 410 in the test analysis system 400 is used to set the operating mode and antenna rotation angle of the phase scanning radar 20. The tester monitors the rotation of the antenna of the camera scanning radar 20 through the monitoring computer 230 and the observation window of the temperature and humidity test chamber 220.
And finally simulating the radar electromagnetic radiation. Under the simulated comprehensive environmental conditions of temperature, humidity and vibration, the testing computer 410 in the testing and analyzing system 400 is used to control the phase scanning radar 20 to be in the radiation working state, specifically including setting the working mode, beam azimuth and pitch angle of the phase scanning radar 20, and the like. The electromagnetic waves radiated by the machine-phase scanning radar 20 pass through the wave-transparent panel 320 and are radiated to the microwave darkroom 330, and the electromagnetic waves radiated to the temperature and humidity test chamber 220 are absorbed by combining the wave-absorbing device 310 in the temperature and humidity test chamber 220, so as to avoid the influence of the electromagnetic waves on the reliability test.
The utility model provides a radar test system is swept to machine looks not only can simulate temperature, humidity and vibration comprehensive environment stress condition that the radar was stood in the in-service use are swept to machine looks, can simulate moreover the antenna rotation of radar is swept to machine looks and the working stress condition such as true beam radiation utilizes this method can examine under comprehensive environment stress condition antenna scanning and the electromagnetic radiation ability of radar are swept to machine looks, can effectively improve radar reliability test's scientificity and authenticity are swept to machine looks.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A phase-swept radar testing system, comprising:
the clamping test system is connected with the phase scanning radar and used for realizing the installation of the phase scanning radar and simulating the rotating state of the phase scanning radar;
the environment test system is connected with the clamping test system and used for simulating the working environment stress of the phase scanning radar;
the microwave absorption system is connected with the environment test system and is used for absorbing the electromagnetic waves transmitted by the phase-scanning radar;
and the test analysis system is respectively connected with the environmental test system and the microwave absorption system and is used for setting the working mode of the phase scanning radar, controlling and monitoring the radiation state of the phase scanning radar and testing the preset technical indexes of the phase scanning radar.
2. The camera-scan radar testing system of claim 1, wherein the environmental testing system comprises:
the vibration table is used for simulating the vibration environmental stress of the phase scanning radar;
and the temperature and humidity test box is fixed on the vibration table, at least part of the vibration table is positioned in the temperature and humidity test box, and the temperature and humidity test box is used for simulating the temperature environmental stress and the humidity environmental stress of the camera scanning radar.
3. The camera-scan radar testing system of claim 2, wherein the environmental testing system further comprises:
and the control module is respectively connected with the vibration table and the temperature and humidity test box, and is used for adjusting the vibration frequency and the vibration magnitude of the vibration table and adjusting the temperature and the humidity in the temperature and humidity test box.
4. The machine-phase scanning radar test system according to claim 3, wherein the temperature and humidity test chamber comprises:
the temperature sensor is fixed in the temperature and humidity test box, is connected with the control module and is used for monitoring the temperature in the temperature and humidity test box in real time;
the humidity sensor is fixed in the temperature and humidity test box, connected with the control module and used for monitoring the humidity in the temperature and humidity test box in real time;
the control module is also used for monitoring the operating curves of the temperature and the humidity in the temperature and humidity test box.
5. The machine-scan radar testing system of claim 3, wherein the vibration table further comprises:
the acceleration sensor is fixed on the vibration table, connected with the control module and used for monitoring the acceleration response of the vibration table in real time;
the control module is also used for monitoring a vibration control curve of the vibration table.
6. The machine-phase scanning radar test system according to claim 2, wherein the clamping test system comprises:
the mounting fixture is used for fixedly connecting the phase scanning radar;
and the mounting fixture is connected with the vibration table through the transition adapter plate.
7. The machine-phase scanning radar testing system of claim 6, wherein the mounting fixture comprises:
the connecting piece is of a cylindrical structure with an opening, and the side wall of the cylinder of the connecting piece is provided with at least one cable through hole;
the bottom plate, the bottom plate with the connecting piece is kept away from the one side perpendicular connection of trompil, the bottom plate with still be connected with a plurality of strengthening ribs between the connecting piece.
8. The machine-phase scanning radar test system according to claim 6, wherein the transition adapter plate is a stainless steel plate, the transition adapter plate further comprises a plurality of mounting holes, and the bottom plate of the mounting fixture is connected with the transition adapter plate through the plurality of mounting holes.
9. The phase scanning radar testing system according to claim 6, wherein said microwave absorption system comprises:
the wave absorbing device is fixed on the inner wall of the temperature and humidity test box and is used for absorbing electromagnetic waves emitted to the temperature and humidity test box during radiation of the phase-scan radar;
one side wall of the temperature and humidity test box is the wave-transmitting panel, and the wave-transmitting panel is used for enabling the electromagnetic waves which cannot be absorbed by the wave absorbing device to be transmitted out of the temperature and humidity test box;
and the microwave darkroom is connected with the wave-transmitting panel and is used for absorbing the electromagnetic waves transmitted through the wave-transmitting panel and radiated to the microwave darkroom.
10. The phase-scanning radar testing system according to claim 9, wherein said test analysis system comprises:
the test control module is connected with the phase scanning radar and used for controlling the working mode of the phase scanning radar and controlling the on and off of the radiation function of the phase scanning radar;
the receiving device is arranged in the microwave darkroom, is positioned on the same horizontal line with the antenna of the phase scanning radar and is used for collecting electromagnetic wave signals radiated by the phase scanning radar;
and the spectrum analyzer is connected with the receiving device and is used for receiving and monitoring the electromagnetic wave signals radiated by the phase-scan radar and judging whether the radiation state of the phase-scan radar is normal or not.
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| CN202020719738.4U CN212989633U (en) | 2020-04-30 | 2020-04-30 | Camera scanning radar test system |
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| CN113703004A (en) * | 2021-08-10 | 2021-11-26 | 一汽解放汽车有限公司 | System and method for detecting running reliability of vehicle-mounted radar and computer equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703004A (en) * | 2021-08-10 | 2021-11-26 | 一汽解放汽车有限公司 | System and method for detecting running reliability of vehicle-mounted radar and computer equipment |
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