DATA error estimation in matched-field geoacoustic inversion

Auteurs-es

  • E. Dosso Stan School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8W 3P6, Canada
  • J. Wilmut Michael School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8W 3P6, Canada
  • Jan Dettmer School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8W 3P6, Canada

Mots-clés :

Algorithms, Amplitude modulation, Arrays, Data reduction, Frequencies, Gaussian noise (electronic), Inverse problems, Maximum likelihood estimation, Optimization, Parameter estimation, Sensors, Signal processing, Simulated annealing, Acoustic data, Error estimation, Geoacoustic inversion, Geoacoustic parameters

Résumé

The data error estimation in matched-field geoacoustic inversion was discussed. The matched-field inversion (MFI) is based on searching for the set of geoacoustic model parameters m that minimizes an objective function quantifying the misfit between measured and modeled acoustic fields. The objective function to be minimized was derived from the likelihood function corresponding to the assumed data uncertainty distribution. It is found that a hybrid optimization algorithm that combines local downhill simplex moves within a fast simulated annealing global search has proved highly effective for MFI.

Fichiers supplémentaires

Publié-e

2004-09-01

Comment citer

1.
Stan ED, Michael JW, Dettmer J. DATA error estimation in matched-field geoacoustic inversion. Canadian Acoustics [Internet]. 1 sept. 2004 [cité 18 févr. 2025];32(3):192-3. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1693

Numéro

Vol. 32 No. 3 (2004)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

Licence

Author Licensing Addendum

This Licensing Addendum ("Addendum") is entered into between the undersigned Author(s) and Canadian Acoustics journal published by the Canadian Acoustical Association (hereinafter referred to as the "Publisher"). The Author(s) and the Publisher agree as follows:

  1. Retained Rights: The Author(s) retain(s) the following rights:

    • The right to reproduce, distribute, and publicly display the Work on the Author's personal website or the website of the Author's institution.
    • The right to use the Work in the Author's teaching activities and presentations.
    • The right to include the Work in a compilation for the Author's personal use, not for sale.

  2. Grant of License: The Author(s) grant(s) to the Publisher a worldwide exclusive license to publish, reproduce, distribute, and display the Work in Canadian Acoustics and any other formats and media deemed appropriate by the Publisher.

  3. Attribution: The Publisher agrees to include proper attribution to the Author(s) in all publications and reproductions of the Work.

  4. No Conflict: This Addendum is intended to be in harmony with, and not in conflict with, the terms and conditions of the original agreement entered into between the Author(s) and the Publisher.

  5. Copyright Clause: Copyright on articles is held by the Author(s). The corresponding Author has the right to grant on behalf of all Authors and does grant on behalf of all Authors, a worldwide exclusive license to the Publisher and its licensees in perpetuity, in all forms, formats, and media (whether known now or created in the future), including but not limited to the rights to publish, reproduce, distribute, display, store, translate, create adaptations, reprints, include within collections, and create summaries, extracts, and/or abstracts of the Contribution.