We report in this study how ocean-bottom seismometers (OBS) can be used as passive sonars to automatically detect, localize, and track moving acoustic sources at the ocean surface. We developed single-station methods based on direction of arrival and on multi-path interference measurements capable of handling continuous erratic signals emitted by ships. Based on a Bayesian mathematical framework, we developed an azimuthal detector and a radial detector and combined them into a fully automatic tracker. We tested the developed algorithm on seismic and hydroacoustic data recorded in the Indian Ocean by an OBS deployed at 4300 m depth, 200 km west of La Réunion Island. We quantified the performances using archives of commercial-vessel trajectories in the area provided by the Automatic Identification System. Detectors demonstrate capabilities in the detection range up to 100 km from the OBS with azimuthal accuracies of a few degrees and with distance accuracies of a few hundred of meters. We expect the method to be easily transposed to any other kind of sources (such as marine mammals).
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January 2023
January 17 2023
Ship detection and tracking from single ocean-bottom seismic and hydroacoustic stations Available to Purchase
Alister Trabattoni
;
Alister Trabattoni
1
Institut de physique du globe de Paris, Université de Paris Cité, CNRS
, F-75005 Paris, France
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Guilhem Barruol
;
Guilhem Barruol
c)
1
Institut de physique du globe de Paris, Université de Paris Cité, CNRS
, F-75005 Paris, France
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Richard Dréo
;
Richard Dréo
b)
1
Institut de physique du globe de Paris, Université de Paris Cité, CNRS
, F-75005 Paris, France
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Abdel Boudraa
Abdel Boudraa
2
Ecole Navale IRENav/Arts & Métiers ParisTech, BCRM
, CC 600, 29240 Brest, France
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Alister Trabattoni
1
Guilhem Barruol
1,c)
Richard Dréo
1,b)
Abdel Boudraa
2
1
Institut de physique du globe de Paris, Université de Paris Cité, CNRS
, F-75005 Paris, France
2
Ecole Navale IRENav/Arts & Métiers ParisTech, BCRM
, CC 600, 29240 Brest, France
a)
Electronic mail: [email protected]
b)
Also at: Ecole Navale IRENav/Arts & Métiers ParisTech, BCRM, CC 600, 29240 Brest, France.
c)
Also at: Institut des Géosciences de l'Environnement (IGE), University of Grenoble Alpes, CNRS, IRD, Grenoble INP, 38000 Grenoble, France.
J. Acoust. Soc. Am. 153, 260–273 (2023)
Article history
Received:
June 27 2022
Accepted:
December 12 2022
Citation
Alister Trabattoni, Guilhem Barruol, Richard Dréo, Abdel Boudraa; Ship detection and tracking from single ocean-bottom seismic and hydroacoustic stations. J. Acoust. Soc. Am. 1 January 2023; 153 (1): 260–273. https://doi.org/10.1121/10.0016810
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