Right whale localisation using a downhill simplex inversion scheme
Mots-clés :
Acoustic waves, Algorithms, Error analysis, Nonlinear systems, Problem solving, Simulated annealing, Datasets, Speed profiles, Travel delays, Whale localizationRésumé
Un algorithme de descente du simplexe faisant partie d’une procédure hybride d’inversion non linéaire combinant un recuit simulé et de descente du simplexe a servi à localiser des sons dans un ensemble de données de travail. Cette procédure se fonde sur les temps relatifs d’arrivée pour des trajets de propagation directe entre les sources et chacun des récepteurs. Un modèle à vecteurs propres a permis d’évaluer le temps de propagation sur des trajets directs. Les positions des récepteurs et des baleines ont été obtenues par l’inversion des délais de propagation relatifs estimés. Il s’est avéré que l’hypothèse des trajets directs posait un problème aux distances comprises dans l’ensemble de données de travail. Ce document examine la solution consistant à utiliser une vitesse de son constante plutôt que des profils réels de vitesse du son pour la localisation, ainsi que l’erreur liée aux imprécisions des temps d’arrivée. Le développement de l’erreur dans les cas de sources multiples est également abordé.Fichiers supplémentaires
Publié-e
Comment citer
Numéro
Rubrique
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:
-
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.
-
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.
-
Attribution: The Publisher agrees to include proper attribution to the Author(s) in all publications and reproductions of the Work.
-
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.
-
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.