Resolving acoustic azimuth using an accelerometer‐based underwater acoustic vector sensor
Rattachement africain : no. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Abstract The performance of a single commercial accelerometer‐based underwater acoustic vector sensor (AVS) in resolving acoustic azimuth was evaluated. The method involves calculating the active intensity of an acoustic signal to determine the dominant directionality of an acoustic pressure field as a function of time and frequency. While this method efficiently displays azimuth bearings for specific frequencies, there are very few assessments of its performance in resolving all possible bearings using a single AVS. Field experiments were conducted with an AVS placed on the sea bottom and an active source suspended from a research vessel. A 600 Hz signal was transmitted from 16 positions covering a 360° azimuth to the AVS. During the transmissions, the vessel maintained its position and heading by using a dynamic positioning system. The acoustic azimuths were compared with the transmission bearings obtained via Global Positioning System. This study demonstrates that a commercial AVS system can effectively resolve acoustic bearings across a full 360° azimuth at high signal‐to‐noise ratios using the active intensity method. Our results support the use of AVS systems in research on sound directionality, including bioacoustics studies on how marine organisms respond to natural underwater sound and anthropogenic noise.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Resolving acoustic azimuth using an accelerometer‐based underwater acoustic vector sensor
- Date Crossref
- 22/02/2025
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Norwegian Institute of Marine Research Acoustics and Observation Methodologies Research Group pays non établi dans la noticeStructure de recherche
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Acoustics (Norway) pays non établi dans la noticeEntreprise
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Norwegian University of Science and Technology pays non établi dans la noticeUniversité ou école supérieure
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Acoustics and Observation Methodologies Research Group Institute of Marine Research Bergen Vestland Norway pays non établi dans la noticeStructure de recherche
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Acoustics and Observation Methodologies Research Group Institute of Marine Research Austevoll Vestland Norway pays non établi dans la noticeStructure de recherche
Acoustics and Observation Methodologies Research Group — Norwegian Institute of Marine Research, Acoustics (Norway) et Norwegian University of Science and Technology, avec 2 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.