Sparse recovery method for far-field and near-field sources localization using oblique projection

作     者：WANG Bo ZHAO Yan-ping LIU Juan-juan 

作者机构：College of Communication Engineering Jilin University 

基　　金：supported by the National Natural Science Foundation of China (60901060) 

出 版 物：《The Journal of China Universities of Posts and Telecommunications》 (中国邮电高校学报（英文版）)

年 卷 期：2013年第20卷第3期

页      码：90-96页

摘      要：In this paper, we propose a novel source localization method to estimate parameters of arbitrary field sources, which may lie in near-field region or far-field region of array aperture. The proposed method primarily constructs two special spatial-temporal covariance matrixes which can avoid the array aperture loss, and then estimates the frequencies of signals to obtain the oblique projection matrixes. By using the oblique projection technique, the covariance matrixes can be transformed into several data matrixes which only contain single source information, respectively. At last, based on the sparse signal recovery method, these data matrixes are utilized to solve the source localization problem. Compared with the existing typical source localization algorithms, the proposed method improves the estimation accuracy, and provides higher angle resolution for closely spaced sources scenario. Simulation results are given to demonstrate the performance of the proposed algorithm.

主 题 词：array signal processing near-field far-field sparse signal recovery oblique projection 

学科分类：08[工学] 080401[080401] 0804[工学-材料学] 080402[080402] 

核心收录：

D　O　I：10.1016/S1005-8885(13)60055-2

馆 藏 号：203334983...