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Proceedings Paper

What are the time-frequency moments of a signal?
Author(s): Patrick J. Loughlin
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Paper Abstract

We review recent work on defining the time-frequency moments of a signal. Expressions are given for moments of all orders, in terms of the amplitude and phase of the signal and spectrum. Knowing the time-frequency moments is of interest for a variety of reasons, including their potential utility as features for classification of nonstationary signals, and also because from the moments one can construct the time-varying spectral density, or approximate it using a few moments.

Paper Details

Date Published: 20 November 2001
PDF: 10 pages
Proc. SPIE 4474, Advanced Signal Processing Algorithms, Architectures, and Implementations XI, (20 November 2001); doi: 10.1117/12.448676
Show Author Affiliations
Patrick J. Loughlin, Univ. of Pittsburgh (United States)


Published in SPIE Proceedings Vol. 4474:
Advanced Signal Processing Algorithms, Architectures, and Implementations XI
Franklin T. Luk, Editor(s)

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