Multifunctional active and passive radar test equipment

Abstract

The utility model provides multifunctional active and passive radar test equipment. The multifunctional active and passive radar test equipment comprises a case, a double-screen assembly, a keyboard and mouse assembly, a movement board card assembly, an air inlet and fan assembly and a movable antenna, wherein the double-screen assembly, the keyboard and mouse assembly, the movement board card assembly and the air inlet and fan assembly are connected in the case and distributed from top to bottom; the antenna is electrically connected with the movement board card assembly and located on one side of the case; the double-screen assembly comprises a first screen which is hinged to the rear end of the top of the case and can be turned upwards to be opened, and a second screen which is hinged to the right side of the first screen and can be turned over to be opened. According to the utility model, a miniaturized design is adopted, and the board cards are all 3U standard air-cooled board cards; double screens are adopted, so that software control and data analysis are facilitated; radar active and passive radar testing is supported; a plurality of interfaces are reserved, including serial ports, network ports, LVDS (Low Voltage Differential Signaling), optical fibers, various radio frequency interfaces and the like, and can be used for calibration, test and control of the radar.

Description

Technical Field

[0001] The utility model relates to the technical field of radars, in particular to multifunctional active and passive radar testing equipment. Background Art

[0002] Radar is a radio positioning technology. The transmitter radiates a signal of a specific frequency. The signal contacts the target and reflects, forming an echo signal. The signal enters the radar's receiving system through the antenna. After signal processing, the target information is obtained and communicated with the flight control system. The flight control system controls the missile to fly to the predetermined target according to certain guidance rules. Radar has the advantages of long range and little influence from weather. It has a complex structure, small size, powerful functions, multi-level index system, and large amount of test data. There are not only time parameters and speed parameters, but also angle parameters, distance parameters, power parameters, anti-interference performance indicators, etc. that characterize spatial characteristics. In order to ensure performance and quality, the radar compartment and extension need to undergo rigorous environmental stress screening tests and environmental delivery tests during the production process to verify the product's adaptability to extreme environments and eliminate faults.

[0003] Radar functions are complex. In the normal production process, it undergoes dozens of tests from single boards to single machines to complete machines. After a product fails, it is often necessary to trace the link where the problem occurred during the test process and to check the test records and process records before and after the failure. Current radar test equipment is used for radar control simulation, radar debugging, performance testing, radar library calibration, etc., but existing radar test equipment cannot achieve the above functions at the same time.

[0004] However, the existing radars are large in size, and the single-screen display and interface settings cannot meet the display requirements. Therefore, a multifunctional active and passive radar test equipment is needed. Summary of the invention

[0005] The utility model aims to solve the problem that the existing radar is large in size and the display screen and interface cannot meet the needs, and provides a multifunctional active and passive radar test equipment, which adopts a miniaturized design, and the boards all adopt 3U standard air-cooled boards; a double screen is adopted to facilitate software control and data analysis; active and passive radar tests are supported; a variety of interfaces are reserved, including serial port, network port, LVDS, optical fiber, various radio frequency interfaces, etc., which can be used for radar calibration, testing, and control of various functions.

[0006] The utility model provides a multifunctional active and passive radar test equipment, comprising a chassis, a dual screen assembly, a keyboard and mouse assembly, a core board assembly, an air inlet and a fan assembly, and an antenna electrically connected to the core board assembly and located at one side of the chassis and movable;

[0007] The dual-screen assembly comprises a first screen which is hinged at the top rear end of the chassis and can be flipped up and opened, and a second screen which is hinged at the right side of the first screen and can be flipped up and opened.

[0008] The multifunctional active and passive radar test equipment described in the utility model, as a preferred embodiment, the dual-screen assembly also includes a buckle connected to the upper end of the first screen and a buckle slot connected to the front end of the upper part of the chassis, and the first screen and the second screen are fixed to the upper layer of the chassis after the buckle is snapped into the buckle slot;

[0009] The keyboard and mouse assembly is embedded in the lower layer of the dual-screen assembly, and the keyboard and mouse assembly includes an integrated keyboard and mouse.

[0010] The utility model discloses a multifunctional active and passive radar test equipment, as a preferred embodiment, the core board assembly includes a VPX assembly connected to the bottom of the keyboard and mouse assembly, an embedded computer board, a comprehensive processing board, a hard disk board, an active acquisition board, a passive acquisition board, an active channel board, a passive channel board, a high-speed storage board, and a power supply board;

[0011] The dual-screen assembly, keyboard and mouse assembly, VPX assembly, embedded computer board, hard disk board, active acquisition board, passive acquisition board, high-speed storage board and power board are all electrically connected to the integrated processing board; the dual-screen assembly, VPX assembly, integrated processing board, hard disk board, active acquisition board, passive acquisition board, active channel board, passive channel board and high-speed storage board are all electrically connected to the power board; the keyboard and mouse assembly is electrically connected to the embedded computer board.

[0012] The utility model discloses a multifunctional active and passive radar test equipment, as a preferred embodiment, the active acquisition board is electrically connected to the active channel board, the passive acquisition board is electrically connected to the passive channel board, and both the active channel board and the passive channel board are electrically connected to the antenna.

[0013] The utility model discloses a multifunctional active and passive radar test equipment, in which, as a preferred embodiment, the VPX component comprises a VPX core connected to the bottom of the keyboard and mouse component and a VPX board and a VPX backplane connected to the VPX core.

[0014] In the multifunctional active and passive radar test equipment described in the utility model, as a preferred embodiment, the VPX board is a 3UVPX board.

[0015] The multifunctional active and passive radar test equipment described in the utility model, as a preferred embodiment, the core board assembly also includes a back plate connected to one side of the chassis;

[0016] The back panel is connected with UDP network port, TCP network port, serial port, LVDS, optical fiber port and RF port;

[0017] The UDP network port and the TCP network port are both connected to the embedded computer board.

[0018] The utility model discloses a multifunctional active and passive radar test equipment, in which, as a preferred embodiment, the VPX components, embedded computer board, integrated processing board, hard disk board, active acquisition board, passive acquisition board, active channel board, passive channel board, high-speed storage board and power supply board are all arranged vertically.

[0019] The utility model discloses a multifunctional active and passive radar test equipment, as a preferred embodiment, the air inlet and the fan assembly include a turbo fan located at the upper layer of the core board assembly and an axial flow fan located at the lower layer of the core board assembly.

[0020] The utility model discloses a multifunctional active and passive radar test equipment, as a preferred embodiment, the antenna comprises an active antenna electrically connected to the active channel board and a passive antenna electrically connected to the passive channel board.

[0021] The utility model has the following advantages:

[0022] 1. The utility model adopts a miniaturized design, and all boards are 3U standard air-cooled boards; 2. The utility model is different from previous radar testers, and adopts dual screens to facilitate software control and data analysis; the utility model supports active and passive radar testing; the utility model has multiple interfaces, including serial port, network port, LVDS, optical fiber, various radio frequency interfaces, etc., which can be used for radar calibration, testing, and control of multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a stereogram of a multifunctional active and passive radar test equipment;

[0024] Figure 2 This is the main view of a multifunctional active and passive radar test equipment;

[0025] Figure 3 This is a left view of a multifunctional active and passive radar test equipment;

[0026] Figure 4 This is a rear view of a multifunctional active and passive radar test equipment;

[0027] Figure 5 This is a schematic diagram of the antenna of a multifunctional active and passive radar test equipment.

[0028] Reference numerals:

[0029] 1. Chassis; 2. Dual-screen assembly; 21. First screen; 22. Second screen; 23. Buckle; 24. Buckle slot; 3. Keyboard and mouse assembly; 4. Movement board assembly; 41. VPX assembly; 42. Embedded computer board; 43. Integrated processing board; 44. Hard disk board; 45. Active acquisition board; 46. Passive acquisition board; 47. Active channel board; 48. Passive channel board; 49. High-speed storage board; 4a. Power board; 4b. Back panel; 5. Air inlet and fan assembly; 6. Antenna. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Example 1

[0032] like Figures 1 to 5 As shown, a multifunctional active and passive radar test equipment is generally structured to include a tester chassis 1, a screen 2, an embedded keyboard and mouse 3, a movement board assembly 4, a fan 5, and an antenna 6;

[0033] The movement board assembly 4 includes a VPX movement 41, an electronic board (including an embedded computer board 42, an integrated processing board 43, a hard disk board 44, an active acquisition board 45, a passive acquisition board 46, an active channel board 47, a passive channel board 48, a high-speed storage board 49, a power supply board 4a), and a backplane 4b.

[0034] The chassis 1 is used to provide installation space; the embedded computer 42 is used to generate radar commands and report the received data results; the hard disk 44 is used to store the files of the embedded computer 42; the integrated processing board 43 is used to transmit the embedded computer 42 commands to the other boards for control and status query, and also uses the high-speed storage board 44 and the active acquisition board 45 for high-speed data transmission and storage; the active acquisition board 45 contains a DA / AD module for generating playback data, delayed playback data and receiving signal parameter measurement for active radar testing; the passive acquisition board 46 contains a DA module for generating linear frequency modulation Signals, single-frequency signals, etc. are provided for passive testing of radar; active channel board 47 is used to down-convert antenna signals to a frequency that can be processed by active acquisition board 45, and also to up-convert the intermediate frequency signal generated by active acquisition board 45 to the target frequency for active testing of radar; passive channel board 48 is used to up-convert the intermediate frequency signal generated by passive acquisition board 46 to the target frequency for passive testing of radar; high-speed storage board 49 is used to store radar recorded echo data and pre-playback data; power supply board 4a is used to power the system; antenna 6 is used to receive or send electromagnetic waves to realize radar wireless testing; digital cable and radio frequency cable are used. Firstly, it can simulate the flight control system's control over the radar, including query, binding, wake-up, sleep, interference detection, etc.; secondly, it can realize the radar echo dual-path optical fiber simultaneous recording function and real-time graph analysis function; thirdly, it can simulate the target to generate electromagnetic wave signals for active and passive testing of the radar, including generating linear frequency modulation signals and single frequency signals for passive testing, pre-stored echo playback and delayed playback for active testing; fourthly, it can connect external turntable and other equipment to calibrate and test the radar.

[0035] In this embodiment, the chassis 1 is used to provide installation space and is divided into a four-layer structural design; the top layer is the display screen 2; the second layer is the air outlet and fan, commutator, keyboard and mouse 3; the third layer is the movement and board 4; the fourth layer is the air inlet and fan.

[0036] The dual screen 2 is installed on the first layer of the chassis 1 and adopts a flip-cover design, which is convenient for controlling the radar and analyzing data at the same time.

[0037] The keyboard and mouse 3 are installed on the second layer of the chassis 1 and adopt an embedded keyboard and mouse design to increase the integrated design.

[0038] The small VPX core 41 is used to fix the installation of standard 3U VPX cards and backplanes.

[0039] The embedded computer board 42 contains a host computer program for command triggering and data management, including: sending radar control commands through the remote control serial port, receiving and analyzing radar control feedback; sending simulated inertial navigation data to the radar through telemetry data, and receiving radar telemetry data; controlling the calibration turntable A through a UDP network port, controlling the turntable B through a TCP network port, controlling the storage board through a TCP network port, and receiving real-time image data through a TCP network port.

[0040] The integrated processing board 43 is mainly composed of two parts, (1) ZYNQ mainly realizes process control. ZYNQ includes PS and PL, which are mainly divided into two parts: uplink and downlink. The downlink part is that ZYNQ receives the host computer command and then sends it to PL from PS, and then transmits it to the target board or radar. Its main functions include: transmitting the host computer control command to the radar under test through the serial port, and transmitting the inertial navigation data to the radar under test through the telemetry serial port; the uplink part is that ZYNQ PL receives radar data, which is transmitted from PL to PS, and then transmitted to the host computer. Its main functions include: receiving radar control feedback data through the remote control serial port and transmitting it to the host computer, receiving radar telemetry data through the telemetry serial port and transmitting it to the host computer; receiving image data through the custom serial port, converting it into TCP protocol and transmitting it to the host computer. (2) 690T mainly realizes multi-board storage access sharing. The main functions include: receiving echo record data through LVDS / high-speed fiber optic interface and sending it to the storage card; receiving PL data through RapidIO, and then transmitting acquisition card control instructions and receiving acquisition card upload data through RapidIO.

[0041] The hard disk board 44 is used to expand the capacity of the embedded computer 42 .

[0042] The active acquisition board 45 contains an AD / DA module and related FPGA control program, and is used to perform active function tests on the radar, including: receiving radar transmission signals for parameter measurement, playing back radar signals, and generating delayed signals.

[0043] The passive acquisition board 46 contains a DA module and related FPGA control program, and is used to perform passive function tests on the radar, including: generating linear frequency modulation signals and generating single frequency signals.

[0044] The active channel board 47 is used to receive the radar transmission signal received by the active antenna 6, down-convert it to a baseband signal, and transmit it to the active acquisition board; it is also used to receive the signal generated by the active acquisition board 45, up-convert it to the frequency of the radar test, and send it to the active antenna 6.

[0045] The passive channel board 48 is used to receive the signal generated by the passive acquisition board 46 , up-convert the signal to the frequency of the radar test, and send it to the passive antenna 6 .

[0046] The high-speed storage board 49 is used to store and export radar echo recording data, radar playback data, and data to be delayed processed through RapidIO; it is also used to interconnect with the embedded computer 42 through TCP to import and export data.

[0047] The power board 4a provides the power required by the board.

[0048] The backplane 4b is used to provide interfaces between various boards and peripherals.

[0049] Fan 5, the upper turbo fan is used to directional exhaust hot air, and the lower axial fan is used to directional inhale cold air, which ensures that the temperature of the whole machine is controllable and performs normally.

[0050] Antenna 6, the active antenna is used to receive the transmission signal generated by the active test of the radar and transmit it to the active channel; it is also used to receive the transmission signal generated by the active channel and transmit it to the radar. The passive antenna is used to receive the signal generated by the passive channel for the radar to receive the test.

[0051] The specific usage method of this embodiment is:

[0052] A multifunctional active and passive radar tester, mainly divided into active test, passive test, passive calibration and other tasks. Active and passive test mode. The specific implementation order is not fixed, as long as it conforms to the radar execution logic.

[0053] 1. Connect the radar device through the external J599 digital cable, connect the radar echo record data interface to the optical fiber interface, and align the external antenna 6 with the radar antenna under test.

[0054] 2. Plug in the power supply, press the power switch, and the device will start up. The radar will be powered on.

[0055] 3. After the radar is powered on, the telemetry is reported in real time every 20ms. The current working status is framed into a telemetry frame and sent from the serial port on J599 to PL. PL transmits it to PS through the DMA interface on ZYNQ. PS transmits it to the host computer through the 422 serial port. The host computer finally de-frames and stores it, and locates the problem after the subsequent tasks are completed.

[0056] 4. Open the host computer software (referred to as host computer) in the embedded computer 42, select the communication port menu in the software, set the parameters and connect the corresponding remote control serial port COM number and telemetry serial port COM number.

[0057] 5. Click on the upper computer device self-test, the upper computer sends a self-test command to the integrated processing board 43 through the 422 serial port, the integrated processing board 43 transmits it to the 690T, active acquisition board 45, passive acquisition board 46 through RapidIO, and sends it to the active channel board 47 and passive channel board 48 through the 422 serial port. After the self-test of each module is completed, the original path returns the self-test information to the upper computer for summary display.

[0058] 6. The host computer generates radar parameter binding data locally.

[0059] 7. The host computer sends the binding parameters through the remote control serial port, which are transmitted to the radar control interface through the integrated processing board 43. The radar executes the parameter binding task. After completion, the original path returns the binding results to the host computer for de-framing and display.

[0060] 8. Radar wake-up, after setting parameters, perform radar wake-up operation. The host computer sends a radar wake-up command, which is transmitted to the radar control interface through the integrated processing board 43. The radar executes the wake-up task and reports the wake-up status in real time at intervals of 5ms. The original path is uploaded to the host computer for de-framing and display.

[0061] 9. Send signal. The host computer sends the active / passive acquisition card function instruction, which is transmitted to the active / passive acquisition card 45 / 46 through the integrated processing board 43. The acquisition card performs the relevant signal generation function (active includes pre-stored echo signals and playback signals, passive includes single frequency signals and linear frequency modulation signals), and performs DA and digital up-conversion to intermediate frequency signals and then sends them to the active / passive channel 47 / 48. The channel sends electromagnetic waves to the radar through the corresponding active / passive antenna 6 for signal detection.

[0062] 10. Execute the radar detection interference process. The host computer sends the radar detection interference, which is transmitted to the radar control interface through the integrated processing board. The radar performs the detection interference task and reports the radar target status in real time at intervals of 5ms. The original path is uploaded to the host computer for de-framing and display; at the same time, the received echo data is transmitted to the storage card through the optical fiber interface of the integrated processing board for storage.

[0063] 11. Parameter measurement process during active testing: After the radar enters the active process in the above-mentioned interference detection process, it will send electromagnetic waves to the tester. The tester receives the electromagnetic waves through the antenna and sends them to the active channel 47. The active channel 47 is down-converted to the intermediate frequency and then sent to the active acquisition card 45 for detection. After the detection, the parameters are measured and the parameter measurement results are sent to the integrated processing card 43 through the RapidIO interface. The integrated processing card 43 sends them to the host computer through the 422 serial port for de-framing and display.

[0064] 12. When performing operations such as data calibration, use the TCP / UDP network port of the host computer for external turntable control and data fusion. Taking TCP as an example, the host computer connects to the turntable network port through the TCP network port cable, selects and sends the process file, controls the turntable to move according to the trajectory, receives the current angle attitude data of the turntable, fuses its data into the simulated inertial navigation data, and sends it to PS through the host computer telemetry serial port, PS transmits it to PL, and PL sends it to the radar data processing through the specified inertial navigation 422 serial port with a period of 5ms.

[0065] 13. After the task is completed, the radar goes into sleep mode. The host computer sends the radar sleep command to the PS through the remote control serial port, which is transmitted to the radar control interface through the integrated processing board. The radar executes the sleep task and reports the sleep status in real time at intervals of 5ms. The original path is uploaded to the host computer for de-framing and display.

[0066] 14. After completion, you can perform telemetry data de-framing, view the test data locally and perform analysis.

[0067] 15. After completion, the echo record data can be read from the memory card TCP interface for post-processing.

[0068] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional active and passive radar test equipment, characterized in that: It comprises a chassis (1), a dual screen assembly (2) connected to the chassis (1) and distributed from top to bottom, a keyboard and mouse assembly (3), a core board assembly (4), an air inlet and fan assembly (5), and a movable antenna (6) electrically connected to the core board assembly (4) and located on one side of the chassis (1); The dual screen assembly (2) comprises a first screen (21) hinged to the top rear end of the chassis (1) and capable of being flipped upwards and opened, and a second screen (22) hinged to the right side of the first screen (21) and capable of being flipped upwards and opened.

2. A multifunctional active and passive radar test equipment according to claim 1, characterized in that: The dual screen assembly (2) further comprises a buckle (23) connected to the upper end of the first screen (21) and a buckle slot (24) connected to the front end of the upper part of the chassis (1); when the buckle (23) is snapped into the buckle slot (24), the first screen (21) and the second screen (22) are fixed to the upper layer of the chassis (1); The keyboard and mouse assembly (3) is embedded in the lower layer of the dual-screen assembly (2), and the keyboard and mouse assembly (3) comprises an integrated keyboard and mouse.

3. The multifunctional active and passive radar test equipment according to claim 1, characterized in that: The core board assembly (4) comprises a VPX assembly (41) connected to the bottom of the keyboard and mouse assembly (3), an embedded computer board (42), an integrated processing board (43), a hard disk board (44), an active acquisition board (45), a passive acquisition board (46), an active channel board (47), a passive channel board (48), a high-speed storage board (49), and a power supply board (4a); The dual screen assembly (2), the keyboard and mouse assembly (3), the VPX assembly (41), the embedded computer board (42), the hard disk board (44), the active acquisition board (45), the passive acquisition board (46), the high-speed storage board (49) and the power board (4a) are all electrically connected to the integrated processing board (43); the dual screen assembly (2), the VPX assembly (41), the integrated processing board (43), the hard disk board (44), the active acquisition board (45), the passive acquisition board (46), the active channel board (47), the passive channel board (48) and the high-speed storage board (49) are all electrically connected to the power board (4a); the keyboard and mouse assembly (3) is electrically connected to the embedded computer board (42).

4. The multifunctional active and passive radar test equipment according to claim 3, characterized in that: The active acquisition board (45) is electrically connected to the active channel board (47), the passive acquisition board (46) is electrically connected to the passive channel board (48), and both the active channel board (47) and the passive channel board (48) are electrically connected to the antenna (6).

5. The multifunctional active and passive radar test equipment according to claim 3, characterized in that: The VPX assembly (41) comprises a VPX core connected to the bottom of the keyboard and mouse assembly (3) and a VPX board and a VPX backplane connected to the VPX core.

6. The multifunctional active and passive radar test equipment according to claim 5, characterized in that: The VPX board is a 3U VPX board.

7. The multifunctional active and passive radar test equipment according to claim 3, characterized in that: The core board assembly (4) further comprises a back plate (4b) connected to one side of the chassis (1); The backplane (4b) is connected to a UDP network port, a TCP network port, a serial port, a LVDS, an optical fiber interface and a radio frequency interface; The UDP network port and the TCP network port are both connected to the embedded computer board (42).

8. The multifunctional active and passive radar test equipment according to claim 3, characterized in that: The VPX component (41), the embedded computer board (42), the integrated processing board (43), the hard disk board (44), the active acquisition board (45), the passive acquisition board (46), the active channel board (47), the passive channel board (48), the high-speed storage board (49) and the power board (4a) are all arranged vertically.

9. The multifunctional active and passive radar test equipment according to claim 1, characterized in that: The air inlet and fan assembly (5) comprises a turbo fan located on the upper layer of the core board assembly (4) and an axial flow fan located on the lower layer of the core board assembly (4).

10. The multifunctional active and passive radar test equipment according to claim 3, characterized in that: The antenna (6) includes an active antenna electrically connected to the active channel board (47) and a passive antenna electrically connected to the passive channel board (48).

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