一种改进的MUSIC算法在干扰源定位中的应用  

Application of an Improved MUSIC Algorithm in Interference Source Localization

作　　者：徐常伟 孙希超 罗选 宁建建 XU Changwei;SUN Xichao;LUO Xuan;NING Jianjian(No.63670 Troops of PLA,Luoyang 471003)

机构地区：[1]63670部队,洛阳471003

出　　处：《舰船电子工程》2024年第7期186-189,共4页Ship Electronic Engineering

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。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.

关 键 词：EMC测试 阵列旋转 MUSIC算法 波达方向 空间谱估计 

分 类 号：TN927[电子电信—通信与信息系统]