Clutter suppression and classification using twin inverted pulse sonar in ship wakes

Leighton, T.G., Finfer, D.C., Chua, Gim Hwa, White, P.R. and Dix, J.K. (2011) Clutter suppression and classification using twin inverted pulse sonar in ship wakes. The Journal of the Acoustical Society of America, 130, (5), 3431-3437. (doi:10.1121/1.3626131).


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Twin inverted pulse sonar (TWIPS) is here deployed in the wake of a moored rigid inflatable boat (RIB) with propeller turning, and then in the wake of a moving tanker of 4580 dry weight tonnage (the Whitchallenger). This is done first to test its ability to distinguish between scatter from the wake and scatter from the seabed, and second to test its ability to improve detectability of the seabed through the wake, compared to conventional sonar processing techniques. TWIPS does this by distinguishing between linear and nonlinear scatterers and has the further property of distinguishing those nonlinear targets which scatter energy at the even-powered harmonics from those which scatter in the odd-powered harmonics. TWIPS can also, in some manifestations, require no range correction (and therefore does not require the a priori environment knowledge necessary for most remote detection technologies).

Item Type: Article
Digital Object Identifier (DOI): doi:10.1121/1.3626131
ISSNs: 0001-4966 (print)
Subjects: Q Science > QC Physics
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions : Faculty of Engineering and the Environment > Institute of Sound and Vibration Research > Acoustics Group
Faculty of Natural and Environmental Sciences > Ocean and Earth Science > Coastal & Shelf Seas
ePrint ID: 203917
Accepted Date and Publication Date:
Date Deposited: 22 Nov 2011 14:47
Last Modified: 31 Mar 2016 13:47

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