Show simple item record

dc.contributor.author
 hal.structure.identifier
PINSON, Samuel
119004 Universidade Federal de Santa Catarina = Federal University of Santa Catarina [Florianópolis] [UFSC]
dc.contributor.author
 hal.structure.identifier
CORDIOLI, Julio
119004 Universidade Federal de Santa Catarina = Federal University of Santa Catarina [Florianópolis] [UFSC]
dc.contributor.author
 hal.structure.identifier
GUILLON, Laurent
13094 Institut de Recherche de l'Ecole Navale [IRENAV]
dc.date.accessioned2016
dc.date.available2017
dc.date.issued2016
dc.date.submitted2016
dc.identifier.issn0001-4966
dc.identifier.urihttp://hdl.handle.net/10985/11332
dc.descriptionThe authors would like to thank Derek Olson for his help on the rough surface simulation
dc.description.abstractIn the context of sediment characterization, layer interface roughnesses may be responsible for sound-speed profile measurement uncertainties. To study the roughness influence, a three-dimensional (3D) modeling of a layered seafloor with rough interfaces is necessary. Although roughness scattering has an abundant literature, 3D modeling of spherical wave reflection on rough interfaces is generally limited to a single interface (using Kirchhoff-Helmholtz integral) or computationally expensive techniques (finite difference or finite element method). In this work, it is demonstrated that the wave reflection over a layered medium with irregular interfaces can be modeled as a sum of integrals over each interface. The main approximations of the method are the tangent-plane approximation, the Born approximation (multiple reflection between interfaces are neglected) and flat-interface approximation for the transmitted waves into the sediment. The integration over layer interfaces results in a method with reasonable computation cost.
dc.description.sponsorshipThis work is supported by the Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior from Brazil through the young talent funding and partially funded by Wavetech company.
dc.language.isoen
dc.publisherAcoustical Society of America
dc.rightsPost-print
dc.subjectAcoustic rough interface scattering
dc.subjectAcoustic waves
dc.subjectInterface roughness
dc.subjectSpeed of sound
dc.subjectTransmission coefficient
dc.titleSpherical wave reflection in layered media with rough interfaces: Three-dimensional modeling
ensam.embargo.terms2017-03-01
dc.identifier.doi10.1121/1.4961000
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Paris
dc.subject.halSciences de l'ingénieur: Acoustique
ensam.audienceInternationale
ensam.page1108-1115
ensam.journalJournal of the Acoustical Society of America
ensam.volume140
ensam.issue2
ensam.peerReviewingOui
hal.identifierhal-01397195
hal.version1
hal.statusaccept
dc.identifier.eissn1520-8524


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record