Detection and characterization of marine mammal calls by parametric modelling

Auteurs-es

  • A.T. Johansson Signal Processing and Control Group, Inst. of Sound/Vibration Research, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
  • P.R. White Signal Processing and Control Group, Inst. of Sound/Vibration Research, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom

Mots-clés :

Algorithms, Computer simulation, Costs, Fish detectors, Frequencies, Mathematical models, Notch filters, Parameter estimation, Reliability, Signal systems, Signal to noise ratio, Time domain analysis, Waveform analysis, Adaptive notch filter (ANF), Marine mammals, Parametric modeling, Passive acoustic detection

Résumé

Le présent article décrit une méthode de modélisation paramétrique pour la détection et la caractérisation des vocalisations tonales de mammifères marins. La méthode consiste à poursuivre les fréquences dominantes à l’aide d’un filtre à encoche adaptatif (ANF), couplé à une étape de détection simultanée innovatrice. La statistique de détection est dérivée d’une mesure de la fiabilité de poursuite, un sous-produit de l’algorithme de poursuite. La détection entraîne un coût computationnel additionnel minime, et est à la fois rapide, simple, et capable de traiter des signaux multiples et à de bas rapports signal sur bruit. Les estimations de fréquence sont dérivées directement du domaine temporel et fréquentiel, évitant ainsi les compromis de résolution de la technique spectrogramme utilisée fréquemment. Dans une application sur un fichier d’une durée de 18-min de l’ensemble de donnée de l’atelier, il est possible de détecter quatre vocalisations probables de baleines franches.

Fichiers supplémentaires

Publié-e

2004-06-01

Comment citer

1.
Johansson A, White P. Detection and characterization of marine mammal calls by parametric modelling. Canadian Acoustics [Internet]. 1 juin 2004 [cité 15 mai 2026];32(2):83-92. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1591

Numéro

Vol. 32 No. 2 (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.