Bias analysis of MUSIC in the presence of mutual coupling

作     者：Liu, Z. M. Huang, Z. T. Zhou, Y. Y. 

作者机构：Natl Univ Def Technol China Dept Elect Sci & Engn Changsha 410073 Hunan Peoples R China 

出 版 物：《IET SIGNAL PROCESSING》 (IET Signal Proc.)

年 卷 期：2009年第3卷第1期

页      面：74-84页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：National Natural Science Foundation of China Innovation Foundation for Outstanding Postgraduates in the National University of Defence Technology of China 

主　　题：array signal processing covariance matrix uniform linear antenna array covariance matrices antenna element mutual coupling Antenna theory MUSIC algorithm bias analysis Signal processing and detection multiple signal classification array-based bearing-finding method electromagnetic coupling Algebra direction-of-arrival estimation antenna theory Antenna arrays linear antenna arrays signal classification 

摘      要：The effect of mutual coupling in antenna elements heavily deteriorates the performance of existing array-based bearing-finding methods. Such a bias of MUSIC in uniform and general linear arrays is analytically studied and an explicit expression of a relationship between this bias and the effect of mutual coupling together with the direction of the incident source is given. The biases of different arrays are also compared to provide a reference when choosing the right array under the considerable effect of mutual coupling.