Low-degree root-MUSIC algorithm for fast DOA estimation based on variable substitution technique  

作　　者：Fenggang YAN Ming JIN Hongjuan ZHOU Jun WANG Shuai LIU 

机构地区：[1]School of Information Science and Engineering,Harbin Institute of Technology at Weihai,Weihai 264209,China

出　　处：《Science China(Information Sciences)》2020年第5期214-216,共3页中国科学（信息科学）（英文版）

基　　金：National Natural Science Foundation of China(Grant No.61871149)。

摘　　要：Dear editor,U-root-MUSIC[1]is one of the most popular unitary direction of arrival(DOA)estimation methods[2],and its eigenvalue decomposition(EVD)stage involves only real-valued(RV)arithmetic.Recently,a version of RV-root-MUSIC,which allows RV computations for both EVD and polynomial rooting,was reported in[3].Nevertheless,the RV-root-MUSIC polynomial is of a high degree 2(M-1),which meansit has unacceptably high complexity with large arrays[4].

关 键 词：MUSIC estimation POLYNOMIAL 

分 类 号：TN911.7[电子电信—通信与信息系统]