DocumentCode
295424
Title
Wideband array signal processing with alpha-stable distributions
Author
Tsakalides, Panagiotis ; Nikias, L.
Author_Institution
Signal & Image Process. Inst., Univ. of Southern California, Los Angeles, CA, USA
Volume
1
fYear
1995
fDate
35009
Firstpage
135
Abstract
The importance of extending the statistical array signal processing methodology to what we call the alpha-stable framework is apparent. First, scientists and engineers have started to appreciate infinite moments and the elegant scaling and self-similarity properties of stable distributions. Additionally, real life applications exist in which impulsive channels tend to produce large-amplitude, short-duration interference more frequently than Gaussian channels do. The stable law has been shown to successfully model noise over certain impulsive channels. We propose new robust techniques for wideband source detection and localization in the presence of noise modeled as a complex isotropic stable process
Keywords
direction-of-arrival estimation; interference (signal); random processes; signal detection; stability; statistical analysis; telecommunication channels; alpha-stable distributions; complex isotropic stable process; impulsive channels; impulsive interference; infinite moments; large amplitude interference; noise; robust techniques; scaling properties; self-similarity properties; short duration interference; stable law; statistical array signal processing; subspace based bearing estimation; wideband DOA estimation; wideband array signal processing; wideband source detection; wideband source localization; 1f noise; Array signal processing; Delay; Image processing; Interference; Random processes; Sensor arrays; Signal processing; Wideband; Working environment noise;
fLanguage
English
Publisher
ieee
Conference_Titel
Military Communications Conference, 1995. MILCOM '95, Conference Record, IEEE
Conference_Location
San Diego, CA
Print_ISBN
0-7803-2489-7
Type
conf
DOI
10.1109/MILCOM.1995.483286
Filename
483286
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