NDLI: Cross-coupled signals separation and equalization by a mirror imaged adaptive decorrelation structure

Content Provider	IEEE Xplore Digital Library
Author	Al-Kindi, M.J. AL-Raweshidy, H.S.
Copyright Year	2011
Description	Author affiliation: Department of Electronic & Communications Engineering, College of Engineering, Nahrain University, Baghdad, Iraq (Al-Kindi, M.J.) \|\| Wireless Networks and Communications Center (WNCC), School of Engineering and Design, Brunel University, London, UK (AL-Raweshidy, H.S.)
Abstract	An adaptive structure for cross-coupled signals blind separation and equalization is proposed. Cross-coupled signals might occur and observed in many MIMO applications. In this paper, the output observations of reverberant/non-reverberant simplified MIMO of 2-channel cross-coupled signals are considered. The structure is based on cross-coupled adaptive FIR cancellers for signals de-correlation and two other FIR equalizers that equalize the signals against the source signal cross-coupling channels distortion. Suitable de-correlation will result signals separation while equalization is devoted for signals reshaping. This structure is shown, under certain circumstances, to estimate the source signals, with no distortion even when the transmission coupling paths between the observation sensors have low attenuation and both signals are continuous. The main issues involved in this paper are the analysis of the structure topology, system constraint and convergence of the individual adaptive transfer function to solution(s) that ensures the signals separation and equalization for reverberant or non-reverberant channels. Also, suitable adopted LMS and least squares adaptive estimation algorithms for the structure are presented.
Starting Page	1
Ending Page	5
File Size	239898
Page Count	5
File Format	PDF
ISBN	9781457717864
ISSN	18825621
e-ISBN	9782908849257
e-ISBN	9782908849264
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-03
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	National Institute of Inform
Subject Keyword	Couplings Source separation Blind Signals Separation and Equalization Adaptive filters Estimation Transfer functions Adaptive interference Cancellation Adaptive equalizers Vectors Cross-Coupled Canceller
Content Type	Text
Resource Type	Article

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