宽带强干扰背景下的弱信号源DOA估计方法  

Estimation of DOA for Broadband Weak Signal Source in Broadband Strong Interference Background

作　　者：王姝[1] 何子述[1] 李会勇[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《现代雷达》2006年第9期69-71,共3页Modern Radar

摘　　要：在宽带弱信号DOA估计中,当强干扰与弱信号的方向角很接近时,弱信号被强干扰所掩盖而无法检测出弱信号的方向。文中提出了一种先对数据进行干扰相消预处理,再采用MUSIC算法估计弱信号DOA的方法。仿真结果证明了该方法的有效性。In DOA estimation of broadband weak signal, when the weak signal is embedded in strong interferences so that the direction of arrival of the weak signal can not be determined when the two directions are close to each other. To solve this problem, first, we preprocess the data through interferences cancellation, and then apply MUSIC algorithm to estimate DOA of the weak signal. The effectiveness of the proposed method is verified by computer simulation results.

关 键 词：宽带强干扰 干扰相消 DOA估计 

分 类 号：TN911.23[电子电信—通信与信息系统]