131875 - Estimating drift of directional sonobuoys from acoustic bearings.pdf (191.64 kB)
Estimating drift of directional sonobuoys from acoustic bearings
journal contribution
posted on 2023-05-20, 02:41 authored by Miller, BS, Wotherspoon, S, Rankin, S, Calderan, S, Leaper, R, Keating, JLA maximum likelihood method is presented for estimating drift direction and speed of a directional sonobuoy given the deployment location and a time series of acoustic bearings to a sound source at known position. The viability of this method is demonstrated by applying it to two real-world scenarios: (1) during a calibration trial where buoys were independently tracked via satellite, and (2) by applying the technique to sonobuoy recordings of a vocalising Antarctic blue whale that was simultaneously tracked by photogrammetric methods. In both test cases, correcting for sonobuoy drift substantially increased the accuracy of acoustic locations.
History
Publication title
Journal of the Acoustical Society of AmericaVolume
143Pagination
EL25-EL30ISSN
0001-4966Department/School
Institute for Marine and Antarctic StudiesPublisher
Acoustical Society of AmericaPlace of publication
Ste 1 No 1, 2 Huntington Quadrangle, Melville, USA, Ny, 11747-4502Rights statement
Copyright 2018 the Acoustical Society of AmericaRepository Status
- Open