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Titolo:
Long range source localization from single hydrophone spectrograms
Autore:
Kuperman, WA; DSpain, GL; Heaney, KD;
Indirizzi:
Univ Calif San Diego, Scripps Inst Oceanog, Marine Phys Lab, La Jolla, CA 92093 USA Univ Calif San Diego La Jolla CA USA 92093 ys Lab, La Jolla, CA 92093 USA SAIC, La Jolla, CA 92037 USA SAIC La Jolla CA USA 92037SAIC, La Jolla, CA 92037 USA
Titolo Testata:
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
fascicolo: 5, volume: 109, anno: 2001,
parte:, 1
pagine: 1935 - 1943
SICI:
0001-4966(200105)109:5<1935:LRSLFS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
NORTH PACIFIC-OCEAN; VERTICAL ARRAY; INVARIANTS; SOUND;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Engineering, Computing & Technology
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Kuperman, WA Univ Calif San Diego, Scripps Inst Oceanog, Marine Phys Lab, La Jolla, CA 92093 USA Univ Calif San Diego La Jolla CA USA 92093 lla, CA 92093 USA
Citazione:
W.A. Kuperman et al., "Long range source localization from single hydrophone spectrograms", J ACOUST SO, 109(5), 2001, pp. 1935-1943

Abstract

A source near the deep sound channel axis excites mode groups (or paths) that involve both deep sound channel and boundary interacting propagation. Dispersion from a broadband source as measured on a single hydrophone can beused to estimate source range. Furthermore, modal group speeds have a functional transition when passing through purely refractive to boundary reflecting phase speed regions which, under certain conditions, provides additional arrival structure to aid in source localization. This additional arrivalstructure is in the form of a focal region in a spectrogram. Indeed, different data sets from the Acoustic Thermometry of the Ocean Climate (ATOC) Program [ATOC Consortium, Science 281, 1327-1332 (1998)] show that localization can be accomplished using this focal region and/or the overall dispersion properties as originally suggested fifty years ago [M. Ewing and J. L. Worzel, Gee. Sec. Am., Memoir 27 (1948)]. (C) 2001 Acoustical Society of America.

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Documento generato il 25/09/20 alle ore 00:30:08