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Using a towed array to localise and quantify underwater sound radiated by the tow-vessel

Access Status
Open access
Authors
Duncan, Alexander
McMahon, D.
Date
2004
Type
Conference Paper

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Citation
Duncan, Alexander and McMahon, Darryl. 2004. Using a towed array to localise and quantify underwater sound radiated by the tow-vessel, in Mee, D. and Hooker, R. and Hillock, I. (ed), Proceedings of the Annual Conference of the Australian Acoustical Society, Nov 3-5 2004, pp. 533-538. Gold Coast: Australian Acoustical Society.
Source Title
Acoustics 2004 - Transportation Noise and Vibration - The New Millenium
Source Conference
Proceedings of the Annual Conference of the Australian Acoustical Society 2004
ISSN
Faculty
Centre for Marine Science and Technology (CMST)
Faculty of Science and Engineering
School
Centre for Marine Science & Technology (COE)
URI
Collection
Abstract

This paper presents the results of a study aimed at determining the feasibility of using a towed array of hydrophones to localise and quantify sound sources on the tow-vessel. The method requires the tow-vessel to execute a manoeuvre in order to bring the array into a suitable geometry to allow it to image the tow-vessel. Previous work has focussed on a scenario where the tow-vessel executes a U-turn manoeuvre, resulting in rapid relative motion between the tow-vessel and hydrophones. In this paper a simulation is used to compare the performance of different beamforming algorithms in a scenario where the tow-vessel executes a constant radius turn. This scenario has the advantage of allowing longer integration times than the U-turn manoeuvre.