Particle filtering for dispersion curve tracking in ocean acoustics

Document Type

Article

Publication Date

8-18-2008

Abstract

A particle filtering method is developed for dispersion curve extraction from spectrograms of broadband acoustic signals propagating in underwater media. The goal is to obtain accurate representation of modal dispersion which can be employed for source localization and geoacoustic inversion. Results are presented from the application of the method to synthetic data, demonstrating the potential of the approach for accurate estimation of waveguide dispersion characteristics. The method outperforms simple time-frequency analysis providing estimates that are very close to numerically calculated dispersion curves. The method also provides uncertainty information on modal arrival time estimates, typically unavailable when traditional methods are used. © 2008 Acoustical Society of America.

Identifier

49249139864 (Scopus)

Publication Title

Journal of the Acoustical Society of America

External Full Text Location

https://doi.org/10.1121/1.2947628

ISSN

00014966

PubMed ID

18681501

First Page

EL45

Last Page

EL50

Issue

2

Volume

124

Grant

N000140510262

Fund Ref

Office of Naval Research

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