Simultaneous characterization of source, array and environment using a ray travel-time inversion approach

Research output: Contribution to journalArticle

Abstract

This paper presents a new ray travel-time inversion scheme not only for localizing the source and calibrating the array position, but also for characterizing environmental parameters such as sound speed profiles (in both water column and sediment), bathymetry, etc. Special attention is given to link the unknowns to good physical observables in order to enhance robustness and efficiency. Numerical studies show the algorithm is indeed extremely efficient. The algorithm is also shown to be insensitive to model mismatch and to yield quite accurate results. This paper also focuses on specific Lincoln-Sea application and analysis of a specific data set from Iceshelf-89.

Original languageEnglish (US)
Pages (from-to)193-218
Number of pages26
JournalJournal of Computational Acoustics
Volume5
Issue number2
StatePublished - Jun 1997

Fingerprint

Travel Time
Travel time
travel
Half line
Inversion
rays
inversions
Bathymetry
bathymeters
Sediment
calibrating
Numerical Study
Sediments
sediments
Acoustic waves
Robustness
Water
Unknown
acoustics
profiles

ASJC Scopus subject areas

  • Applied Mathematics
  • Acoustics and Ultrasonics

Cite this

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abstract = "This paper presents a new ray travel-time inversion scheme not only for localizing the source and calibrating the array position, but also for characterizing environmental parameters such as sound speed profiles (in both water column and sediment), bathymetry, etc. Special attention is given to link the unknowns to good physical observables in order to enhance robustness and efficiency. Numerical studies show the algorithm is indeed extremely efficient. The algorithm is also shown to be insensitive to model mismatch and to yield quite accurate results. This paper also focuses on specific Lincoln-Sea application and analysis of a specific data set from Iceshelf-89.",
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