Vehicle-borne radar in-loop real-time simulation test system and method thereof

Abstract

The invention discloses a vehicle-borne radar in-loop real-time simulation test system and a method thereof. The system comprises a tested radar located on a turntable, a driving operation unit, a display, a real-time controller and an upper computer, wherein the driving operation unit comprises a driving operation mechanism and a driving operation signal sensor; the upper computer comprises a virtual test field and a target test and analysis unit; a driving vehicle model and a target vehicle model are included in the virtual test field; the driving vehicle model is used for virtually loading the tested radar; the real-time controller comprises a spectrum measurement unit, a target simulation unit, a motion controller and a data acquisition card; and the spectrum measurement unit comprises a millimeter wave signal transceiver, a millimeter wave frequency reducer, a millimeter wave signal analyzer, a time delay controller, a millimeter wave signal generator and a millimeter wave frequency rising device. Through radar hardware-in-the-loop real-time simulation, driving operation, target simulation, turntable rotation control and millimeter wave delay control, simulation test on the radar in various road conditions is realized.

Description

technical field [0001] The invention belongs to the technical field of vehicle radar testing, in particular to a hardware-in-the-loop vehicle radar real-time simulation testing system and a method thereof. Background technique [0002] The rapid development of automotive intelligent driving assistance technology and automatic driving technology, together with new energy vehicle technology, has brought a new wave of development in the automotive industry. Various environmental sensors used in vehicles have developed rapidly, among which millimeter-wave radar has become a smart car. Essential sensors. Radar can be used to effectively judge road conditions and improve the early warning capabilities of vehicles. As one of the mainstream vehicle-mounted sensors for smart cars, millimeter-wave radar is widely used in vehicle-mounted distance detection, adaptive cruise, collision warning, blind spot monitoring and merging assistance systems, and is an important part of advanced dr...

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Problems solved by technology

[0003] The existing radar test system cannot realize the effective test of radar accuracy

Chinese patent 201510416151.X "a radar test bench" fixes the radar on the bench for measurement, which can meet the requirements of various test environments, but the radar test bench involved in this patent is also used in the actual test environment and No method proposed for radar testing

Chinese patent 201610749771.X "A Millimeter-Wave Radar Test System" proposes a millimeter-wave radar test system, which uses real static obstacles and dynamic obstacles sliding on the track to test outdoors, which is not only costly, but also For different test environments, the experimental environment needs to be re-arranged. The trajectory of complex dynamic obstacles is not easy to set up, and the test is difficult.

Chinese patent 200610083479.5 "A Millimeter Wave Agile Radar Simulator" proposes a millimeter wave agile radar simulator, which uses distance simulation and signal delay to detect radar tracking performance, but it cannot realize various vehicle road conditions The test method for the radar and the detection angle of the radar is not involved

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