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Titolo:
SOURCE LOCALIZATION IN NOISY AND UNCERTAIN OCEAN ENVIRONMENTS
Autore:
FIALKOWSKI LT; COLLINS MD; PERKINS JS; KUPERMAN WA;
Indirizzi:
USN,RES LAB WASHINGTON DC 20375 UNIV CALIF SAN DIEGO,SCRIPPS INST OCEANOG LA JOLLA CA 92093
Titolo Testata:
The Journal of the Acoustical Society of America
fascicolo: 6, volume: 101, anno: 1997,
pagine: 3539 - 3545
SICI:
0001-4966(1997)101:6<3539:SLINAU>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
MATCHED-FIELD LOCALIZATION; SHALLOW-WATER; SOURCE TRACKING; SOUND-SPEED; MISMATCH; SENSITIVITY; RESOLUTION; ACOUSTICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
L.T. Fialkowski et al., "SOURCE LOCALIZATION IN NOISY AND UNCERTAIN OCEAN ENVIRONMENTS", The Journal of the Acoustical Society of America, 101(6), 1997, pp. 3539-3545

Abstract

Interference from noise and uncertainties in the environmental parameters are arguably the two most serious limitations in matched-field processing (MFP). Among the techniques that have been developed for handling these difficulties are the noise-canceling processor [M. D. Collins, N. C. Makris, and L. T. Fialkowski, ''Noise cancellation and source localization,'' J. Acoust. Sec. Am. 96, 1773-1776 (1994)] and focalization [M. D. Collins and W. A. Kuperman, ''Focalization: Environmental focusing and source localization,'' J. Acoust. Sec. Am. 90, 1410-1422 (1991)]. The noise-canceling processor is a generalization of the Bartlett processor that is based on matching the covariance matrix of the data with replica covariance matrices of the signal and the noise. Simulations are presented to illustrate the performance of the noise-canceling processor when there are errors in the noise replica. Focalization is a generalization of MFP in which environmental parameters are included along with source parameters in the search space. An implementation of this approach that is suitable for applications is developedand tested. The noise-canceling processor and focalization are used to simulate the localization of a source buried in noise in an uncertain environment. (C) 1997 Acoustical Society of America.

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Documento generato il 29/09/20 alle ore 20:33:38