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Blind Identifiability of Certain Classes of Multipath Channels from Second-Order Statistics Using Antenna Arrays

Reddy, Vellenki U and Papadias, B and Paulraj, Arogyaswami J (1997) Blind Identifiability of Certain Classes of Multipath Channels from Second-Order Statistics Using Antenna Arrays. In: IEEE Signal Processing Letters, 4 (5). 138 -141.

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Abstract

Recently, Ding [7] has pointed out several classes of multipath channels that are not blindly identifiable from fractionally spaced samples and second-order cyclic spectra. In this letter, we consider the blind identification problem using multiple antennas and show that the multipath channels of [7] will not give rise to any common roots among the subchannels formed from the antennas and, hence, they can be identified from second-order statistics. In our development, we will point out the role of band-limitedness of the channels in characterizing different classes.

Item Type: Journal Article
Additional Information: Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 25 Aug 2008
Last Modified: 19 Sep 2010 04:25
URI: http://eprints.iisc.ernet.in/id/eprint/6272

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