基于校正源抑制阵列幅相误差的DOA估计方法  

Calibrating Direction Finding in the Presence of Sensor Gain and Phase Errors

作　　者：赵彬[1] 杨佳[1] Zhao Bin;Yang Jia(Troops No.63891 of the Chinese People’s Liberation Army,Luoyang 471000,China)

机构地区：[1]中国人民解放军63891部队,洛阳471000

出　　处：《信息化研究》2020年第5期24-28,共5页INFORMATIZATION RESEARCH

摘　　要：经典的多重信号分类算法容易受到阵列幅相误差的影响,导致测向估计结果产生偏差。文章提出了一种校正源辅助的估计算法,通过阵列幅相误差系数和角度交替迭代,实现了阵列幅相误差和角度的联合估计。计算机仿真结果表明,算法能够对幅相误差进行纠偏同时估计目标角度,算法稳健性强。Classical multiple signal classification algorithms are susceptible to the influence of the amplitude and phase errors of the array,leading to deviations in the direction finding estimation results.The article proposes a correction source-assisted estimation algorithm,which realizes the joint estimation of the array amplitude and phase error and angle through alternate iteration of the array amplitude and phase error coefficient and angle.The computer simulation results show that the algorithm can correct the amplitude and phase errors and estimate the target angle at the same time,and the algorithm is robust.

关 键 词：波达方向估计 校正源 阵列幅相误差 MUSIC算法 

分 类 号：TN911.72[电子电信—通信与信息系统]