基于改进MUSIC算法的DOA精度影响因素的研究  

Study of performance of DOA estimation on modified MUSIC arithmetic

作　　者：韩卫杰 陈向东[1] 张瑞江[1] 索忠伟[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031

出　　处：《微计算机信息》2006年第03X期273-274,共2页Control & Automation

基　　金：国防科学重点实验室基金资助项目编号:(00JS11.4.3.D20213)

摘　　要：通过改进MUSIC算法,分析了影响DOA精度的各种因素.同时,计算机对非相干信号源的仿真结果表明:信噪比、阵元数目对改进MUSIC谱有一定的影响;较小的入射角对相邻信号源的空间谱的分辨率比较大入射角有明显的改善。reasons were analyzed which affected the precision of DOA through modified MUSIC arithmetic. At the same time, here it is presented by computer simulations for non-coherent signals that Signal-to-Noise Ratio and the number of sensors had definite effects on modified MUSIC spectrum, and that a less angle of incidence had more obviously improved on spaeial spectrum of adjacent signals than the bigger.

关 键 词：MUSIC算法 天线阵列 DOA 精度 

分 类 号：TN911[电子电信—通信与信息系统]