基于矢量网络分析仪的雷达目标物RCS测试研究

Research on Radar Target RCS Testing Based on Vector Network Analyzer

随着汽车主动安全技术的快速发展,越来越多的车型都搭载了AEB(自动紧急制动),ACC(自适应巡航)等高级辅助驾驶功能,这些功能的实现离不开汽车毫米波雷达的应用。在主动安全测试领域,需要在实际道路上使用假人、目标台车、两轮车等目标物模拟真实道路上的工况,对雷达实现功能测试。为使模拟目标物与真实目标物对雷达影响一致,对目标物的散射截面积进行精确地把握成为一个十分关键的问题。本文提出了一种对雷达目标物散射量的测量方法,并且把测试结果与真实的目标物进行对比,验证了测试结果以及目标物仿真的准确性。

With the rapid development of active safety technology for automobiles, more and more models are equipped with advanced driver assistance systems such as AEB(Autonomous Emergency Brake) and ACC(Adaptive Cruise Control). These functions cannot be achieved without automotive millimeter wave radar. In the field of active safety testing, it is necessary to use targets such as dummy, target trolley, and two-wheeled vehicle on the actual road to simulate the working conditions on the real road and to perform functional tests on the radar. In order to make the simulation target and the real target have the same influence on the radar, accurately grasping the scattering cross-sectional area of the target becomes a very critical issue. This paper proposes a method for measuring the amount of scattering of radar targets, and compares the test results with real targets to verify the test results and the accuracy of the target simulation.