A method of Robust low-angle target height and compound reflection coefficient joint estimation  

作　　者：WANG Shenghua CAO Yunhe LIU Yutao 

机构地区：[1]School of Communications and Information Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710061,China [2]Science and Technology on Communication Networks Laboratory,Shijiazhuang 050081,China [3]National Laboratory of Radar Signal Processing,Xidian University,Xi’an 710071,China

出　　处：《Journal of Systems Engineering and Electronics》2022年第2期322-329,共8页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(61771367);the Science and Technology on Communication Networks Laboratory(6142104190204).

摘　　要：It is always a challenging issue for radar systems to estimate the height of a low-angle target in the multipath propagation environment.The highly deterministic maximum likelihood estimator has a high accuracy,but the errors of the ground reflection coefficient and the reflecting surface height have serious influence on the method.In this paper,a robust es-timation method with less computation burden is proposed based on the compound reflection coefficient multipath model for low-angle targets.The compound reflection coefficient is es-timated from the received data of the array and then a one-di-mension generalized steering vector is constructed to estimate the target height.The algorithm is robust to the reflecting sur-face height error and the ground reflection coefficient error.Fi-nally,the experiment and simulation results demonstrate the validity of the proposed method.

关 键 词：low-angle target robust joint estimation compound reflection coefficient MULTIPATH direction of arrival(DOA) 

分 类 号：TN957.51[电子电信—信号与信息处理]