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dc.contributor.authorSchmidt, Henrik
dc.contributor.authorJensen, Finn B.
dc.date.accessioned2018-10-11T14:05:30Z
dc.date.available2018-10-11T14:05:30Z
dc.date.issued1986/06
dc.identifier678
dc.identifier.govdocCP-37
dc.identifier.urihttp://hdl.handle.net/20.500.12489/117
dc.description.abstractOne of the most commonly used techniques for determinati on of the geoacoustical properties of the sea bed is the measurement of plane wave reflection coefficients at the ocean bottom. An incident field is pr oduced by either an explosive source or a beam generating device and the reflected field is then detected by means of an array of hydrophones. The associated angles of incidence have traditionally been dete rmi ned by simple geometrical considerations. However such simple interpretations give results that in some cases depend on the actual exper imental geometry. For example critical angles can appear far away from the correct values or not be present at all. Here an exact numerical model i s used to examine the different experimental techniques. The observed dis crepancies are explained, both for the point and beam source experiments. In addit ion, guidelines are given for interpretation of results obtained by the different experimental techniques.
dc.format10 p. : ill. ; digital, PDF file
dc.languageEnglish
dc.publisherNATO. SACLANTCEN
dc.sourceIn: Selected papers on ocean-seismo acoustics low-frequency underwater acoustics (SACLANTCEN Conference Proceedings CP-37), 1986, pp. 8-1 - 8-10.
dc.subjectAcoustic reflection
dc.subjectSeafloor
dc.subjectAcoustic models
dc.subjectGeoacoustics
dc.subjectShallow water
dc.titleEvaluation of experimental techniques for determining the plane wave reflection coefficient at the sea floor
dc.typePapers and Articles
dc.typeConference Proceedings (CP)


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