A class of diagonally loaded robust Capon beamformers for noncircular signals of interest

被引：16

作者：

Xu, Yougen ^{[1
]}

Ma, Jingyan ^{[1
]}

Liu, Zhiwen ^{[1
]}

Liu, Wei ^{[2
]}

机构：

[1] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China

[2] Univ Sheffield, Dept Elect & Elect Engn, Commun Res Grp, Sheffield S1 3JD, S Yorkshire, England

来源：

SIGNAL PROCESSING | 2014年 / 94卷

基金：

中国国家自然科学基金;

关键词：

Robust adaptive beamforming; Capon beamformer; Diagonal loading; Steering vector error; Noncircularity; PRINCIPAL COMPONENT ANALYSIS; DIRECTION-OF-ARRIVAL; LOADING FACTOR; PERFORMANCE; MUSIC; DOA; ALGORITHM; ERRORS;

D O I：

10.1016/j.sigpro.2013.07.013

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Diagonal loading is a simple and effective method for robustness enhancement of the Capon beamformer against perturbation in the presumed steering vector of the signal-of-interest (SOI). However, the determination of an appropriate diagonal loading level is not a trivial task. Three noncircularity restoral based methods are herein proposed for selecting the diagonal loading level to recover a noncircular SOI buried in circular and/or noncircular interferences plus circular background noise. Monte Carlo simulations are performed to verify the efficacy of the proposed methods. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：670 / 680

页数：11

共 31 条

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