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Titolo:
Application of waveguide invariants to analysis of spectrograms from shallow water environments that vary in range and azimuth
Autore:
DSpain, GL; Kuperman, WA;
Indirizzi:
Scripps Inst Oceanog, Marine Phys Lab, San Diego, CA 92152 USA Scripps Inst Oceanog San Diego CA USA 92152 Lab, San Diego, CA 92152 USA
Titolo Testata:
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
fascicolo: 5, volume: 106, anno: 1999,
pagine: 2454 - 2468
SICI:
0001-4966(199911)106:5<2454:AOWITA>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Engineering, Computing & Technology
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: D'Spain, GL Scripps Inst Oceanog, Marine Phys Lab, San Diego, CA 92152 USAScripps Inst Oceanog San Diego CA USA 92152 ego, CA 92152 USA
Citazione:
G.L. D'Spain e W.A. Kuperman, "Application of waveguide invariants to analysis of spectrograms from shallow water environments that vary in range and azimuth", J ACOUST SO, 106(5), 1999, pp. 2454-2468

Abstract

The waveguide invariant summarizes in a single scalar parameter the dispersive propagation characteristics for a given environment. In this paper, anexpression is derived for the invariant in shallow water environments where the bottom bathymetry varies with range and azimuth. It then is applied to the interpretation of broadband, single-element spectrograms collected during SWellEx-3, a shallow water acoustics experiment off the coast of San Diego. The unusual behavior of the interference patterns seen in the spectrograms from this experiment during the transmission of a 75-150-Hz pseudo-random noise sequence by a source towed over range-varying bottom bathymetry is well matched by the model predictions. (C) 1999 Acoustical Society of America. [S0001-4966(99)00911-X].

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Documento generato il 26/09/20 alle ore 14:29:13