Passive fathometer reflector identification with phase shift modeling

Zoi Heleni Michalopoulou, Peter Gerstoft

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In passive fathometer processing, the presence of wavelets in the estimate of the medium's Green's function corresponds to the location of reflectors in the seabed; amplitudes are related to seabed properties. Bayesian methods have been successful in identifying reflectors that define layer interfaces. Further work, however, revealed that phase shifts are occasionally present in the wavelets and hinder accurate layer identification for some reflectors. With a Gibbs sampler that computes probability densities of reflector depths, strengths of the reflections, and wavelet phase shifts, the significance of phase shift modeling in successful estimation of reflectors and their strengths is demonstrated.

Original languageEnglish (US)
Pages (from-to)EL125-EL130
JournalJournal of the Acoustical Society of America
Volume140
Issue number1
DOIs
StatePublished - Jul 1 2016

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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