Effect of towed array stability on instantaneous localization of marine mammals:
Reliable localization of marine mammals using towed arrays is often required for mitigation, population density estimates, and bioacoustics research. The accuracy of the range estimates using towed arrays is often not well quantified. Triangulation methods using multiple hydrophones allow for fast r...
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fttno:oai:tudelft.nl:uuid:a24eb98d-e43f-41db-826c-2d731b9944ed 2023-05-15T15:37:11+02:00 Effect of towed array stability on instantaneous localization of marine mammals: Benda-Beckmann, A.M. von Beerens, S.P. IJsselmuide, S.P. van 2013-01-01 http://resolver.tudelft.nl/uuid:a24eb98d-e43f-41db-826c-2d731b9944ed en eng uuid:a24eb98d-e43f-41db-826c-2d731b9944ed 478307 http://resolver.tudelft.nl/uuid:a24eb98d-e43f-41db-826c-2d731b9944ed Journal of the Acoustical Society of America, September, 3, pt.2, 134, 2409–2417 Physics Acoustic Signal Processing Acoustic Transducer Arrays Bioacoustics Biocommunications Hydrophones Marine Mammals Defence Research Defence Safety and Security Physics & Electronics AS - Acoustics & Sonar TS - Technical Sciences article 2013 fttno 2022-04-10T16:19:27Z Reliable localization of marine mammals using towed arrays is often required for mitigation, population density estimates, and bioacoustics research. The accuracy of the range estimates using towed arrays is often not well quantified. Triangulation methods using multiple hydrophones allow for fast range estimates but are sensitive to the species type, location of the animal with respect to the array, sound propagation conditions, and array stability. A simple model is presented that is used to estimate the range accuracy of towed arrays for different vocalizations and is compared to measured range accuracies of sperm whale clicks recorded with a 15m baseline towed array. The ranging performance is particularly sensitive to hydrophone position errors which are found to dominate. Hydrophone position errors could be estimated using heading sensors placed in the array and are taken into account in the model. A good agreement is found between the empirical range errors and theoretically predicted ones. Extrapolation of the model to other species suggests that species emitting high frequency clicks and calls can be localized from distances out to a few kilometers with a baseline of 15 m, but baleen whales transmitting low frequency calls require longer baselines to obtain range estimates. VC 2013 Acoustical Society of America. Article in Journal/Newspaper baleen whales Sperm whale TU Delft: Institutional Repository (Delft University of Technology) |
institution |
Open Polar |
collection |
TU Delft: Institutional Repository (Delft University of Technology) |
op_collection_id |
fttno |
language |
English |
topic |
Physics Acoustic Signal Processing Acoustic Transducer Arrays Bioacoustics Biocommunications Hydrophones Marine Mammals Defence Research Defence Safety and Security Physics & Electronics AS - Acoustics & Sonar TS - Technical Sciences |
spellingShingle |
Physics Acoustic Signal Processing Acoustic Transducer Arrays Bioacoustics Biocommunications Hydrophones Marine Mammals Defence Research Defence Safety and Security Physics & Electronics AS - Acoustics & Sonar TS - Technical Sciences Benda-Beckmann, A.M. von Beerens, S.P. IJsselmuide, S.P. van Effect of towed array stability on instantaneous localization of marine mammals: |
topic_facet |
Physics Acoustic Signal Processing Acoustic Transducer Arrays Bioacoustics Biocommunications Hydrophones Marine Mammals Defence Research Defence Safety and Security Physics & Electronics AS - Acoustics & Sonar TS - Technical Sciences |
description |
Reliable localization of marine mammals using towed arrays is often required for mitigation, population density estimates, and bioacoustics research. The accuracy of the range estimates using towed arrays is often not well quantified. Triangulation methods using multiple hydrophones allow for fast range estimates but are sensitive to the species type, location of the animal with respect to the array, sound propagation conditions, and array stability. A simple model is presented that is used to estimate the range accuracy of towed arrays for different vocalizations and is compared to measured range accuracies of sperm whale clicks recorded with a 15m baseline towed array. The ranging performance is particularly sensitive to hydrophone position errors which are found to dominate. Hydrophone position errors could be estimated using heading sensors placed in the array and are taken into account in the model. A good agreement is found between the empirical range errors and theoretically predicted ones. Extrapolation of the model to other species suggests that species emitting high frequency clicks and calls can be localized from distances out to a few kilometers with a baseline of 15 m, but baleen whales transmitting low frequency calls require longer baselines to obtain range estimates. VC 2013 Acoustical Society of America. |
format |
Article in Journal/Newspaper |
author |
Benda-Beckmann, A.M. von Beerens, S.P. IJsselmuide, S.P. van |
author_facet |
Benda-Beckmann, A.M. von Beerens, S.P. IJsselmuide, S.P. van |
author_sort |
Benda-Beckmann, A.M. von |
title |
Effect of towed array stability on instantaneous localization of marine mammals: |
title_short |
Effect of towed array stability on instantaneous localization of marine mammals: |
title_full |
Effect of towed array stability on instantaneous localization of marine mammals: |
title_fullStr |
Effect of towed array stability on instantaneous localization of marine mammals: |
title_full_unstemmed |
Effect of towed array stability on instantaneous localization of marine mammals: |
title_sort |
effect of towed array stability on instantaneous localization of marine mammals: |
publishDate |
2013 |
url |
http://resolver.tudelft.nl/uuid:a24eb98d-e43f-41db-826c-2d731b9944ed |
genre |
baleen whales Sperm whale |
genre_facet |
baleen whales Sperm whale |
op_source |
Journal of the Acoustical Society of America, September, 3, pt.2, 134, 2409–2417 |
op_relation |
uuid:a24eb98d-e43f-41db-826c-2d731b9944ed 478307 http://resolver.tudelft.nl/uuid:a24eb98d-e43f-41db-826c-2d731b9944ed |
_version_ |
1766367649330102272 |