Matched-impulse-response processing for shallow-water localization and geoacoustic inversion

Document Type

Article

Publication Date

11-25-2000

Abstract

In this paper, impulse response matching is proposed for source localization and environmental inversion. The ocean impulse response is estimated using a cross-correlation procedure applied to data from the propagation of a broadband pulse in a shallow-water environment. Source localization and geoacoustic parameter estimation are then performed through time-domain correlations between the estimated impulse responses at spatially separated phones and synthetic replica impulse responses. The method is both spatially and temporally coherent. Parameter space search uses a hierarchical scheme designed to exploit the sensitivity of the acoustic field to the unknown parameters. Tested on the SWellEX-96 and synthetic data, the proposed method is shown to be more robust than conventional (linear), incoherent, broadband matched field processing. (C) 2000 Acoustical Society of America.

Identifier

0033777659 (Scopus)

Publication Title

Journal of the Acoustical Society of America

External Full Text Location

https://doi.org/10.1121/1.1289669

ISSN

00014966

First Page

2082

Last Page

2090

Issue

5 I

Volume

108

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