A Portable Matched-Field Processing System Using Passive Acoustic Time Synchronization
Abstract—A portable matched-field processing (MFP) system for tracking marine mammals is presented, constructed by attaching a set of autonomous flash-memory acoustic recorders to a rope to form a four-element vertical array, or “insta-array.” The acoustic data are initially time-synchronized by per...
Main Authors: | , , , , , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.308.7943 http://www.mpl.ucsd.edu/people/pgerstoft/papers/Thode06.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.308.7943 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.308.7943 2023-05-15T16:36:01+02:00 A Portable Matched-Field Processing System Using Passive Acoustic Time Synchronization Aaron M. Thode Peter Gerstoft William C. Burgess Karim G. Sabra Melania Guerra M. Dale Stokes Michael Noad Douglas H. Cato The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.308.7943 http://www.mpl.ucsd.edu/people/pgerstoft/papers/Thode06.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.308.7943 http://www.mpl.ucsd.edu/people/pgerstoft/papers/Thode06.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.mpl.ucsd.edu/people/pgerstoft/papers/Thode06.pdf text ftciteseerx 2016-01-07T22:24:06Z Abstract—A portable matched-field processing (MFP) system for tracking marine mammals is presented, constructed by attaching a set of autonomous flash-memory acoustic recorders to a rope to form a four-element vertical array, or “insta-array.” The acoustic data are initially time-synchronized by performing a matched-field global inversion using acoustic data from an opportunistic source, and then by exploiting the spatial coherence of the ocean ambient noise background to measure and correct for the relative clock drift between the autonomous recorders. The technique is illustrated by using humpback whale song collected off the eastern Australian coast to synchronize the array, which is then used to track the dive profile of the whale using MFP methods. The ability to deploy autonomous instruments into arbitrary “insta-array ” geometries with conventional fishing gear may permit nonintrusive array measurements in regions currently too isolated, expensive, or environmentally hostile for standard acoustic equipment. Index Terms—Acoustic arrays, acoustic beam steering, marine animals, underwater acoustic arrays, underwater acoustics, underwater technology. I. Text Humpback Whale Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Abstract—A portable matched-field processing (MFP) system for tracking marine mammals is presented, constructed by attaching a set of autonomous flash-memory acoustic recorders to a rope to form a four-element vertical array, or “insta-array.” The acoustic data are initially time-synchronized by performing a matched-field global inversion using acoustic data from an opportunistic source, and then by exploiting the spatial coherence of the ocean ambient noise background to measure and correct for the relative clock drift between the autonomous recorders. The technique is illustrated by using humpback whale song collected off the eastern Australian coast to synchronize the array, which is then used to track the dive profile of the whale using MFP methods. The ability to deploy autonomous instruments into arbitrary “insta-array ” geometries with conventional fishing gear may permit nonintrusive array measurements in regions currently too isolated, expensive, or environmentally hostile for standard acoustic equipment. Index Terms—Acoustic arrays, acoustic beam steering, marine animals, underwater acoustic arrays, underwater acoustics, underwater technology. I. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Aaron M. Thode Peter Gerstoft William C. Burgess Karim G. Sabra Melania Guerra M. Dale Stokes Michael Noad Douglas H. Cato |
spellingShingle |
Aaron M. Thode Peter Gerstoft William C. Burgess Karim G. Sabra Melania Guerra M. Dale Stokes Michael Noad Douglas H. Cato A Portable Matched-Field Processing System Using Passive Acoustic Time Synchronization |
author_facet |
Aaron M. Thode Peter Gerstoft William C. Burgess Karim G. Sabra Melania Guerra M. Dale Stokes Michael Noad Douglas H. Cato |
author_sort |
Aaron M. Thode |
title |
A Portable Matched-Field Processing System Using Passive Acoustic Time Synchronization |
title_short |
A Portable Matched-Field Processing System Using Passive Acoustic Time Synchronization |
title_full |
A Portable Matched-Field Processing System Using Passive Acoustic Time Synchronization |
title_fullStr |
A Portable Matched-Field Processing System Using Passive Acoustic Time Synchronization |
title_full_unstemmed |
A Portable Matched-Field Processing System Using Passive Acoustic Time Synchronization |
title_sort |
portable matched-field processing system using passive acoustic time synchronization |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.308.7943 http://www.mpl.ucsd.edu/people/pgerstoft/papers/Thode06.pdf |
genre |
Humpback Whale |
genre_facet |
Humpback Whale |
op_source |
http://www.mpl.ucsd.edu/people/pgerstoft/papers/Thode06.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.308.7943 http://www.mpl.ucsd.edu/people/pgerstoft/papers/Thode06.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766026322727927808 |