Blind identifiability of certain classes of multipath channels fromsecond-order statistics using antenna arrays
Reddy, V.U.
Papadias, C.B.
Paulraj, A.J.
Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore;
This paper appears in: Signal Processing Letters, IEEE
Publication Date: May 1997
Volume: 4,
Issue: 5
On page(s): 138-141
ISSN: 1070-9908
References Cited: 9
CODEN: IESPEJ
INSPEC Accession Number: 5578718
Digital Object Identifier: 10.1109/97.575558
Current Version Published: 2002-08-06
Abstract
Recently, Ding (see IEEE Signal Processing Lett., vol.3, p.150-2,
May 1996) 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 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
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