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Proceedings Paper

Moment features invariant to dispersion
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Paper Abstract

As a wave propagates in a dispersive medium certain characteristics change and hence it may not be recognized as the same wave by different observers. For lossless dispersive propagation, temporal moments such as the mean time and duration of the wave change as a function of position, while frequency moments do not. We show that there are other moment-like temporal features of the wave that are also invariant to dispersion. These moments may be useful in automatic classification because indeed they are invariant to dispersive channel effects and hence do not depend on the position at which they are calculated, and they provide additional information beyond that given by frequency moments.

Paper Details

Date Published: 21 September 2004
PDF: 13 pages
Proc. SPIE 5426, Automatic Target Recognition XIV, (21 September 2004); doi: 10.1117/12.542424
Show Author Affiliations
Patrick J. Loughlin, Univ. of Pittsburgh (United States)
Leon Cohen, City Univ. of New York (United States)


Published in SPIE Proceedings Vol. 5426:
Automatic Target Recognition XIV
Firooz A. Sadjadi, Editor(s)

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