Estimation of multipath parameters in wireless communications
Vanderveen, M.C.
Van der Veen, A.-J.
Paulraj, A.
Sci. Comput. Program, Stanford Univ., CA;
This paper appears in: Signal Processing, IEEE Transactions on
Publication Date: Mar 1998
Volume: 46,
Issue: 3
On page(s): 682-690
ISSN: 1053-587X
References Cited: 18
CODEN: ITPRED
INSPEC Accession Number: 5867846
Digital Object Identifier: 10.1109/78.661335
Current Version Published: 2002-08-06
Abstract
In a parametric multipath propagation model, a source is received
by an antenna array via a number of rays, each described by an arrival
angle, a delay, and a fading parameter. Unlike the fading, the angles
and delays are stationary over long time intervals. This fact is
exploited in a new subspace-based high-resolution method for
simultaneous estimation of the angle/delay parameters from multiple
estimates of the channel impulse response. A computationally expensive
optimization search can be avoided by using an ESPRIT-like algorithm.
Finally, we investigate certain resolution issues that take the fact
that the source is bandlimited into account
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