NDLI: Optimal array processing for non-stationary signals

Content Provider	IEEE Xplore Digital Library
Author	Chevalier, P.
Copyright Year	1996
Description	Author affiliation: Div. RGS, STS, Thomson-CSF, Gennevilliers, France (Chevalier, P.)
Abstract	The optimal array filtering problem consists mainly of implementing a complex linear and time invariant (TI) filter, optimizing a second order criterion at the output, under some possible constraints and assuming stationary signals. This approach is optimal for stationary signals, but becomes sub-optimal for non-stationary signals for which the optimal complex filters an time variant (TV) and, under some conditions of non-circularity, widely linear (WL). The purpose of this paper is to demonstrate these results, to touch lightly on the implementation problems of TV filters, to give a sense to the classical approach for non-stationary signals and to show, on a particular example borrowed from the radiocommunications field, the interest of WL structures with respect to linear ones in non-stationary environments.
Starting Page	2868
Ending Page	2871
File Size	463208
Page Count	4
File Format	PDF
ISBN	0780331923
ISSN	15206149
DOI	10.1109/ICASSP.1996.550152
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-05-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Signal processing Nonlinear filters Finite impulse response filter Sensor arrays TV Filtering Vectors Constraint optimization Statistical analysis
Content Type	Text
Resource Type	Article

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