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Vehicle-mounted millimeter wave radar test system

A millimeter-wave radar and test system technology, applied to radio wave measurement systems, instruments, etc., can solve the problems of high test cost, many manpower and time, consumption, etc., to save manpower and time, accurate target simulation, complete and reliable records Effect

Pending Publication Date: 2021-03-19
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, to test the performance of automotive millimeter-wave radar, it is often necessary to arrange an experimental site and simulate the test environment, which requires a lot of manpower and time, and the test cost is high.

Method used

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  • Vehicle-mounted millimeter wave radar test system
  • Vehicle-mounted millimeter wave radar test system
  • Vehicle-mounted millimeter wave radar test system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Such as Figure 1~4 As shown, a vehicle-mounted millimeter-wave radar test system includes:

[0026] The turntable 3, the receiving spread spectrum module 2, the spherical screen 5, the receiving antenna unit 12, the target antenna array 7 and the radar target simulator 6 placed in the microwave anechoic chamber, and the signal source 10 and the measurement and control station 11 placed outside the microwave anechoic chamber;

[0027] The turntable is used to fix the radar to be tested 1 and simulate the azimuth and attitude of the automobile millimeter-wave radar;

[0028] Specifically, the radar 1 to be tested is fixed on the turntable 3 through a fixed bracket, and the fixed bracket and the turntable 3 have no shielding on the transmitting surface of the radar to be tested 1, and do not affect the transmission and reception of the radar;

[0029] The signal source 10 is used to provide a local oscillator signal for the receiving spread spectrum module 2;

[0030] T...

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Abstract

The invention discloses a vehicle-mounted millimeter wave radar test system. The system comprises a turntable arranged in a microwave anechoic chamber, a receiving spread spectrum module, a sphericalscreen, a receiving antenna unit, a target antenna array, a radar target simulator, a signal source arranged outside the microwave anechoic chamber, and a measurement and control platform. Through theradar target simulator, targets at different angles, different heights, different speeds and different numbers are simulated, and radar performance testing is completed. According to the invention, testing and parameter reading are automatically completed in the closed anechoic chamber, and the testing is simple and reliable and is not influenced by an external environment.

Description

technical field [0001] The invention belongs to the technical field of millimeter-wave radar, in particular to a vehicle-mounted millimeter-wave radar test system. Background technique [0002] With the development of science and technology, the ADAS system with active safety technology presents a momentum of rapid development. ADAS uses various sensors installed on the car to detect the surrounding environment of the car body, so that the driver or the unmanned driving system can detect possible dangers in advance, so as to improve the car's obstacle avoidance ability and improve driving safety. At present, the most widely used solution is the combination of camera, lidar, and millimeter-wave radar. The camera and lidar cannot work normally in foggy or rainy days. The accuracy of lidar is the best, but the disadvantage is that it is expensive. A set of lidar products It needs tens of thousands of tens of thousands of dollars, which is obviously not suitable for large-scale...

Claims

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Application Information

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IPC IPC(8): G01S7/40
CPCG01S7/4004
Inventor 彭树生戈尧吴礼张宁牟亮
Owner NANJING UNIV OF SCI & TECH
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