Using a coherent hydrophone array for observing sperm whale range, classification, and shallow-water dive profiles
Sperm whales in the New England continental shelf and slope were passively localized, in both range and bearing, and classified using a single low-frequency (<2500 Hz), densely sampled, towed horizontal coherent hydrophone array system. Whale bearings were estimated using time-domain beamforming...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Acoustical Society of America (ASA)
2015
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| Online Access: | http://hdl.handle.net/1721.1/97630 https://orcid.org/0000-0003-4369-296X |
| _version_ | 1811086419774406656 |
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| author | Tran, Duong D. Huang, Wei Bohn, Alexander C. Wang, Delin Gong, Zheng Ratilal, Purnima Makris, Nicholas |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Tran, Duong D. Huang, Wei Bohn, Alexander C. Wang, Delin Gong, Zheng Ratilal, Purnima Makris, Nicholas |
| author_sort | Tran, Duong D. |
| collection | MIT |
| description | Sperm whales in the New England continental shelf and slope were passively localized, in both range and bearing, and classified using a single low-frequency (<2500 Hz), densely sampled, towed horizontal coherent hydrophone array system. Whale bearings were estimated using time-domain beamforming that provided high coherent array gain in sperm whale click signal-to-noise ratio. Whale ranges from the receiver array center were estimated using the moving array triangulation technique from a sequence of whale bearing measurements. Multiple concurrently vocalizing sperm whales, in the far-field of the horizontal receiver array, were distinguished and classified based on their horizontal spatial locations and the inter-pulse intervals of their vocalized click signals. The dive profile was estimated for a sperm whale in the shallow waters of the Gulf of Maine with 160 m water-column depth located close to the array's near-field where depth estimation was feasible by employing time difference of arrival of the direct and multiply reflected click signals received on the horizontal array. By accounting for transmission loss modeled using an ocean waveguide-acoustic propagation model, the sperm whale detection range was found to exceed 60 km in low to moderate sea state conditions after coherent array processing. |
| first_indexed | 2024-09-23T13:25:19Z |
| format | Article |
| id | mit-1721.1/97630 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:25:19Z |
| publishDate | 2015 |
| publisher | Acoustical Society of America (ASA) |
| record_format | dspace |
| spelling | mit-1721.1/976302022-09-28T14:04:24Z Using a coherent hydrophone array for observing sperm whale range, classification, and shallow-water dive profiles Tran, Duong D. Huang, Wei Bohn, Alexander C. Wang, Delin Gong, Zheng Ratilal, Purnima Makris, Nicholas Massachusetts Institute of Technology. Department of Mechanical Engineering Gong, Zheng Makris, Nicholas Sperm whales in the New England continental shelf and slope were passively localized, in both range and bearing, and classified using a single low-frequency (<2500 Hz), densely sampled, towed horizontal coherent hydrophone array system. Whale bearings were estimated using time-domain beamforming that provided high coherent array gain in sperm whale click signal-to-noise ratio. Whale ranges from the receiver array center were estimated using the moving array triangulation technique from a sequence of whale bearing measurements. Multiple concurrently vocalizing sperm whales, in the far-field of the horizontal receiver array, were distinguished and classified based on their horizontal spatial locations and the inter-pulse intervals of their vocalized click signals. The dive profile was estimated for a sperm whale in the shallow waters of the Gulf of Maine with 160 m water-column depth located close to the array's near-field where depth estimation was feasible by employing time difference of arrival of the direct and multiply reflected click signals received on the horizontal array. By accounting for transmission loss modeled using an ocean waveguide-acoustic propagation model, the sperm whale detection range was found to exceed 60 km in low to moderate sea state conditions after coherent array processing. National Science Foundation (U.S.) United States. Office of Naval Research 2015-07-01T18:57:10Z 2015-07-01T18:57:10Z 2014-06 2014-02 Article http://purl.org/eprint/type/JournalArticle 0001-4966 http://hdl.handle.net/1721.1/97630 Tran, Duong D., Wei Huang, Alexander C. Bohn, Delin Wang, Zheng Gong, Nicholas C. Makris, and Purnima Ratilal. “Using a Coherent Hydrophone Array for Observing Sperm Whale Range, Classification, and Shallow-Water Dive Profiles.” The Journal of the Acoustical Society of America 135, no. 6 (June 2014): 3352–3363. © 2014 Acoustical Society of America https://orcid.org/0000-0003-4369-296X en_US http://dx.doi.org/10.1121/1.4874601 The Journal of the Acoustical Society of America Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Acoustical Society of America (ASA) Acoustical Society of America |
| spellingShingle | Tran, Duong D. Huang, Wei Bohn, Alexander C. Wang, Delin Gong, Zheng Ratilal, Purnima Makris, Nicholas Using a coherent hydrophone array for observing sperm whale range, classification, and shallow-water dive profiles |
| title | Using a coherent hydrophone array for observing sperm whale range, classification, and shallow-water dive profiles |
| title_full | Using a coherent hydrophone array for observing sperm whale range, classification, and shallow-water dive profiles |
| title_fullStr | Using a coherent hydrophone array for observing sperm whale range, classification, and shallow-water dive profiles |
| title_full_unstemmed | Using a coherent hydrophone array for observing sperm whale range, classification, and shallow-water dive profiles |
| title_short | Using a coherent hydrophone array for observing sperm whale range, classification, and shallow-water dive profiles |
| title_sort | using a coherent hydrophone array for observing sperm whale range classification and shallow water dive profiles |
| url | http://hdl.handle.net/1721.1/97630 https://orcid.org/0000-0003-4369-296X |
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