MUSIC与MMUSIC算法对DOA估计性能的比较  

Comparison of DOA Estimation Performance between MUSIC and MMUSIC Algorithms

作　　者：许斌[1] 吕元恒[1] 

机构地区：[1]西安电子工程研究所,西安710010

出　　处：《火控雷达技术》2008年第3期52-55,共4页Fire Control Radar Technology

摘　　要：阐述阵列信号处理中广泛采用的MUSIC算法和MMUSIC算法的基本原理,然后理论分析了MUSIC和MMUSIC算法性能。仿真发现MUSIC算法只能估计非相干信号。针对这种情况,提出了一种修正MUSIC算法,该算法可以同时估计相干和非相干信号,计算机仿真结果证明该改进算法是有效的。Basic principle of multiple signal classification （MUSIC） algorithm and modified MUSIC （MMUSIC） algorithm which are widely applied in array signal processing is introduced. Performances of MUSIC and MMUSIC algorithm are analyzed theoretically. Simulation results show that MUSIC algorithm can only estimate non-coherent signal; thereby a modified MUSIC algorithm which can estimate coherent signal and non-coherent simuitaneously is discussed. Computer simulation results show that the modified algorithm is effective.

关 键 词：阵列信号处理 MUSIC DOA MMUSIC DOA 特征值分解 

分 类 号：TN911.7[电子电信—通信与信息系统] TP301.6[电子电信—信息与通信工程]