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Surface reverberation at sound field focusing in shallow water

Surface reverberation at sound field focusing in shallow water Abstract A numerical experiment is carried out to study the long-range surface reverberation in the presence of intense surface waves for the case of using vertical transmitting arrays providing sound field focusing at different depths. To focus the field, a phase conjugation of acoustic waves from a probe source positioned at the focusing point is used. It is demonstrated that surface waves considerably affect the focusing quality at a distance of several tens of kilometers from the transmitting array. This prevents the efficient suppression of long-range reverberation by increasing the focusing depth. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acoustical Physics Springer Journals

Surface reverberation at sound field focusing in shallow water

Lunkov, A. A.; Pereselkov, S. A.; Petnikov, V. G.
Acoustical Physics , Volume 54 (6): 10 – Nov 1, 2008
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References (7)

Publisher
Springer Journals
Copyright
2008 Pleiades Publishing, Ltd.
ISSN
1063-7710
eISSN
1562-6865
DOI
10.1134/s1063771008060146
Publisher site
See Article on Publisher Site

Abstract

Abstract A numerical experiment is carried out to study the long-range surface reverberation in the presence of intense surface waves for the case of using vertical transmitting arrays providing sound field focusing at different depths. To focus the field, a phase conjugation of acoustic waves from a probe source positioned at the focusing point is used. It is demonstrated that surface waves considerably affect the focusing quality at a distance of several tens of kilometers from the transmitting array. This prevents the efficient suppression of long-range reverberation by increasing the focusing depth.

Journal

Acoustical Physics – Springer Journals

Published: Nov 1, 2008

Keywords: Acoustics

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