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论文类型： 期刊论文

发表时间： 2014-05-01

发表刊物： SIGNAL PROCESSING

收录刊物： SCIE、EI、Scopus

卷号： 98

页面范围： 252-262

ISSN号： 0165-1684

关键字： MUSIC; Noncircular; Covariation; Complex symmetric alpha-stable

摘要： We extend the bearing estimation method for noncircular signals to the impulsive noise scenario which can be modeled as a complex symmetric alpha-stable (S alpha S) process. We define the extended covariation based matrix of the sensor outputs and show that it can be applied with subspace techniques to extract the bearing information from noncircular sources. Comprehensive simulations demonstrate that the proposed direction finding algorithm outperforms the traditional NC-MUSIC algorithm in the presence of a wide range of impulsive noise environments. (C) 2013 Elsevier B.V. All rights reserved.