基于解相干的MUSIC算法估计性能分析  

Estimation Performance of MUSIC Algorithm Based on Decorrelation Signal

作　　者：吴国庆[1] 陈善继[1] 

机构地区：[1]青海民族大学物理与电子信息工程学院,青海西宁810007

出　　处：《现代电子技术》2011年第7期94-96,共3页Modern Electronics Technique

基　　金：国家民委基金项目资助(08QH07)

摘　　要：MUSIC算法作为DOA估计的经典算法,在处理高度相关的信号时,算法性能急剧下降甚至完全失效。为了正确地估计出相干信号的DOA,就必须要对相干信号进行解相干。采用前/后向空间平滑技术与修正MUSIC算法是两种估计相关信号DOA的有效方法。通过算法仿真实验,证明了理论的正确性。MUSIC is a classical algorithm for DOA estimation. However, it is failure for coherent signals. In order to solve the problem of the DOA estimation of coherent signals, a decorrelation is needed for coherent signals, forward/backward spatial smoothing technique and MMUSIC are two efficient algorithms for resolving coherent signals. Simulation results are provided to verify the theoretical prediction.

关 键 词：波达方向 相干信号 空间平滑技术 修正MUSIC算法 

分 类 号：TN911-34[电子电信—通信与信息系统]