Application of an Improved MUSIC Algorithm in Interference Source Localization
徐常伟 1孙希超 1罗选 1宁建建1
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作者信息
1. 63670部队 洛阳 471003
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摘要
在外场开展系统级电磁兼容性测试时,对于电磁发射类测试项目,为了将EUT信号与干扰信号区分开,需要对干扰源进行定位.利用基于阵列旋转的MUSIC算法(Multiple Signal Classification,多重信号分类)求解多信号的DOA(Direc-tion of Arrival,来波方向),能通过增加虚拟等效阵元的方式突破经典MUSIC算法信号数必须小于阵元数的限制,使MUSIC算法的应用范围扩大.
Abstract
When conducting system level electromagnetic compatibility testing in the field,for electromagnetic emission test-ing projects,in order to distinguish EUT signals from interference signals,it is necessary to locate the interference source.The arti-cle uses the array rotation based MUSIC algorithm(Multiple Signal Classification)to solve the Direction of Arrival(DOA)of multi-ple signals,which can break through the limitation of classical MUSIC algorithm that the number of signals must be less than the number of elements by adding virtual equivalent array elements,expanding the application scope of MUSIC algorithm.
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