Local spectral and spatial frequency moments of shallow-water sound propagation

Patrick J. Loughlin

doi:10.1117/12.455784

6 December 2002 Local spectral and spatial frequency moments of shallow-water sound propagation

Patrick J. Loughlin

Proceedings Volume 4791, Advanced Signal Processing Algorithms, Architectures, and Implementations XII; (2002) https://doi.org/10.1117/12.455784
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

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.

Citation Download Citation

Patrick J. Loughlin "Local spectral and spatial frequency moments of shallow-water sound propagation", Proc. SPIE 4791, Advanced Signal Processing Algorithms, Architectures, and Implementations XII, (6 December 2002); https://doi.org/10.1117/12.455784

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available