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dc.contributor.authorDuncan, Alexander
dc.contributor.authorParnum, Iain
dc.contributor.authorHenley, Peter
dc.contributor.editorTerrance McMinn
dc.identifier.citationDuncan, Alec J. and Parnum, Iain M. and Henley, Peter J. 2013. Efficient modelling of mid to high frequency underwater acoustic propagation, in McMinn, T. (ed), Proceedings of Acoustics 2013 - Science, Technology and Amenity, Nov 17-20 2013, pp. 1-5. Victor Harbour, South Australia: Australian Acoustical Society.

Accurate prediction of the acoustic interference field at mid to high frequencies is computationally intensive, even for ray theory based models, and is of little practical use because the fine detail of the interference pattern is sensitive to the exact values of environmental parameters, such as bathymetry and sound speed, that are inherently uncertain. This paper considers an alternative approach in which a much faster incoherent beam model is used to compute the mean acoustic field, and the interference is treated as a statistical process based on a Rayleigh amplitude distribution. Excellent agreement was found between interference field statistics obtained using this hybrid approach, and those resulting from a full coherent transmission loss calculation whenever the horizontal separation between source and receiver was sufficiently large that there were many contributing ray paths.

dc.publisherAustralian Acoustical Society
dc.titleEfficient modelling of mid to high frequency underwater acoustic propagation
dc.typeConference Paper
dcterms.source.titleEfficient modelling of mid to high frequency underwater acoustic propagation
dcterms.source.seriesEfficient modelling of mid to high frequency underwater acoustic propagation
dcterms.source.conferenceAcoustics 2013 - Science, Technology and Amenity
dcterms.source.conference-start-dateNov 17 2013
dcterms.source.conferencelocationVictor Harbour, South Australia
dcterms.source.placeSouth Australia
curtin.accessStatusFulltext not available

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