Characterization of space-time focusing in time-reversed random fields
Oestges, C.
Kim, A.D.
Papanicolaou, G.
Paulraj, A.J.
Microwave Lab., Univ. Catholique de Louvain, Louvain-la-Neuve, Belgium;
This paper appears in: Antennas and Propagation, IEEE Transactions on
Publication Date: Jan. 2005
Volume: 53,
Issue: 1, Part 2
On page(s): 283- 293
ISSN: 0018-926X
INSPEC Accession Number: 8267840
Digital Object Identifier: 10.1109/TAP.2004.836399
Current Version Published: 2005-01-10
Abstract
This paper proposes various metrics to characterize space-time focusing resulting from application of time reversal techniques in richly scattering media. The concept and goals of time reversal are presented. Pertinent metrics describing both the time and space focusing effects are outlined. Two examples based on a model of discrete and continuous scattering media are used to illustrate how the proposed metrics vary as a function of various system and channel parameters, such as the bandwidth, delay and angle spreads, number of antennas, etc.
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