多功能汽车防撞雷达阵列天线技术研究  

Research on multifunctional array antenna technology for automotive anti-collision radar

作　　者：赵彭 王宇 ZHAO Peng;WANG Yu(No.38 Research Institute of CETC,Hefei 230088)

机构地区：[1]中国电子科技集团公司第三十八研究所,合肥230088

出　　处：《雷达与对抗》2022年第2期23-26,61,共5页Radar & ECM

摘　　要：针对传统汽车防撞雷达不具备测高功能的缺点,提出基于现有收发天线条件下的两种具有测高功能的雷达天线布阵方式,建立了信号数学模型,并利用干涉测角算法实现了测高功能,分析了测高对方位角估计的影响,给出了其适用场景和限制条件。在增加测高功能后,有效降低了汽车防撞雷达的虚警率,显著提升了用户体验。Given that conventional automotive anti-collision radars do not have the height-finding function, two radar antenna array arrangement methods are proposed with the height-finding function based on the existing transmit/receive antenna conditions. The mathematical models of signals are built, and the height finding function is achieved with the interferometry angle measurement algorithm. The impact of height finding on the azimuth angle estimation is analyzed, and the applicable scenario and constraints. The false alarm rate of the automotive anti-collision radar can be effectively reduced, and user experience is remarkably improved after the height-finding function is added.

关 键 词：测高 天线布阵 干涉测角 TDM MIMO 

分 类 号：TN957.2[电子电信—信号与信息处理]