Title of Paper:A novel covariation based noncircular sources direction finding method under impulsive noise environments

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Date of Publication:2014-05-01

Journal:SIGNAL PROCESSING

Included Journals:SCIE、EI、Scopus

Volume:98

Page Number:252-262

ISSN No.:0165-1684

Key Words:MUSIC; Noncircular; Covariation; Complex symmetric alpha-stable

Abstract: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.