一种对修正MUSIC算法的改进测向方法  

An Improved Direction-finding Method of Modified MUSIC Algorithm

作　　者：洪伟[1] 

机构地区：[1]船舶重工集团公司723所,扬州225001

出　　处：《舰船电子对抗》2011年第3期71-73,共3页Shipboard Electronic Countermeasure

摘　　要：在相干信号存在的情况下,MUSIC算法失效,修正MUSIC算法却适用。但是,在角度间隔很小的情况下,修正MUSIC算法的测向性能会下降甚至失效。对修正MUSIC算法作出改进,通过利用接收信号的互相关矩阵信息,提高整个数据自相关矩阵的信息利用率。在角度间隔很近的情况下,该方法比修正MUSIC方法有更好的测向性能。最后,给出了计算机仿真结果和性能分析,验证了该方法的有效性。When the correlative signals exist,the modified MUSIC algorithm works but the MUSIC algorithm doesn＇t.However,with very small angle interval,the direction-finding performance of modified MUSIC algorithm will fall even false.This paper improves the modified MUSIC algorithm,increases the information utility rate by using cross-correlation matrix information of received signals.This method has better direction finding performance than the modified MUSIC algorithm in the case that the angle interval is small.Finally,the computer simulation result and performance analysis are presented,which validates the validity of the method.

关 键 词：相干源到达方向 修正MUSIC算法 改进的修正MUSIC算法 互相关矩阵 

分 类 号：TN971.1[电子电信—信号与信息处理]