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Estimating drift of directional sonobuoys from acoustic bearings


Miller, BS and Wotherspoon, S and Rankin, S and Calderan, S and Leaper, R and Keating, JL, Estimating drift of directional sonobuoys from acoustic bearings, Journal of the Acoustical Society of America, 143, (1) pp. EL25-EL30. ISSN 0001-4966 (2018) [Refereed Article]


Copyright Statement

Copyright 2018 the Acoustical Society of America

DOI: doi:10.1121/1.5020621


A 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.

Item Details

Item Type:Refereed Article
Keywords:drift, sonobouys, acoustic bearings
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Marine engineering
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Oceanic processes (excl. in the Antarctic and Southern Ocean)
UTAS Author:Wotherspoon, S (Dr Simon Wotherspoon)
ID Code:131875
Year Published:2018
Web of Science® Times Cited:5
Deposited By:Ecology and Biodiversity
Deposited On:2019-04-10
Last Modified:2019-06-12
Downloads:40 View Download Statistics

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