摘要
针对城市道路环境下车载毫米波雷达存在的多径假目标干扰真实目标定位的问题,提出了一种多径假目标消除方法,以实现真实目标的准确定位。首先分析了简化的城市道路多径场景的电磁传播路径并建立回波模型,然后应用恒虚警率检测方法及最小方差无失真响应测角定位算法得到目标的初始定位结果,最后通过理论分析多径假目标空间位置分布规律并将初始定位点迹与多径假目标进行匹配消除,保留了真实目标定位点迹。实测试验结果表明,所提出的多径假目标消除方法能够有效消除假目标定位点,获得真实目标的定位结果。
Aiming at the problem that multipath false target interferes with real target location of automotive millimeter-wave radar in urban road environment,a multipath false target removal method is proposed to obtain the accurate location of real target.Firstly,the electromagnetic propagation path of simplifized urban road multipath scene is analyzed and the echo model is established.Then,the initial location result of the target is obtained by using the constant false alarm rate detection method and the minimum variance distortionless response(MVDR)localization method.Finally,the spatial location of multipath false target is analyzed theoretically,the multipath false targets is matched and eliminated in the initial location result,and the location of real target is retained.The experimental results validate that the proposed algorithm can effectively eliminate the multipath false target and obtain the real target location.
作者
郑晶月
吴佩仑
陈家辉
郭世盛
崔国龙
ZHENG Jingyue;WU Peilun;CHEN Jiahui;GUO Shisheng;CUI Guolong(School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China;The First Aircraft Institute of Aviation Industry Corporation of China,Xi’an 710089,China)
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2024年第1期88-96,共9页
Systems Engineering and Electronics
基金
国家自然科学基金(61871080,62001091)
长江学者计划
111计划(B17008)
广东省重点领域研发计划(2020B00909050002)资助课题。
关键词
车载毫米波雷达
多径消除
目标定位
最小方差无失真响应
automotive millimeter-wave radar
multipath elimination
target localization
minimum variance distortionless response(MVDR)
