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Proceedings Paper

Local spectral and spatial frequency moments of shallow-water sound propagation
Author(s): Patrick J. Loughlin
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Paper Abstract

Underwater sound propagation is inherently nonstationary, particularly in shallow water where the ocean surface and bottom act like waveguide boundaries, giving rise to structural (or geometric) dispersion. The spectrogram has been a principal means to study the nonstationarities and dispersion characteristics of shallow-water sound propagation. In this paper, we give the low-order conditional time-frequency moments of a wave propagating in a waveguide. Comparison of these results is made to spectrograms of explosive source sound propagation in the Yellow Sea.

Paper Details

Date Published: 6 December 2002
PDF: 6 pages
Proc. SPIE 4791, Advanced Signal Processing Algorithms, Architectures, and Implementations XII, (6 December 2002); doi: 10.1117/12.455784
Show Author Affiliations
Patrick J. Loughlin, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 4791:
Advanced Signal Processing Algorithms, Architectures, and Implementations XII
Franklin T. Luk, Editor(s)

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