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The parametric propagation in underwater acoustics : experimental results

hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorBOUTTARD, Etienne
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorLABAT, Valérie
hal.structure.identifierInstitut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
dc.contributor.authorBOU MATAR, Olivier
hal.structure.identifierDépartement Signal et Communications [SC]
dc.contributor.authorCHONAVEL, Thierry
dc.date.accessioned2021-05-14T09:58:41Z
dc.date.available2021-05-14T09:58:41Z
dc.date.issued2012-04
dc.date.conference2012-04
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77966
dc.descriptionIn underwater acoustics, detection of buried objects in sediments (cables, mines, . . . ) is a complex problem. Indeed, in order to ensure sufficient penetration depth in marine sediments, low frequencies have to be used, implying a low resolution. A solution proposed to solve this problem is the parametric emission based on the nonlinear properties of seawater. This method can generate a low frequency wave from two directional high frequencies beams. The aim of this work is to present experimental results of a parametric propagation. Experiments have been carried out in a water tank in various configurations. These experimental measurements are then compared with simulation results obtained with a numerical model based on a fractional-step method presented at the Underwater Acoustic Measurements conference in 2011.
dc.description.abstractEnIn underwater acoustics, detection of buried objects in sediments (cables, mines, . . . ) is a complex problem. Indeed, in order to ensure sufficient penetration depth in marine sediments, low frequencies have to be used, implying a low resolution. A solution proposed to solve this problem is the parametric emission based on the nonlinear properties of seawater. This method can generate a low frequency wave from two directional high frequencies beams. The aim of this work is to present experimental results of a parametric propagation. Experiments have been carried out in a water tank in various configurations. These experimental measurements are then compared with simulation results obtained with a numerical model based on a fractional-step method presented at the Underwater Acoustic Measurements conference in 2011.
dc.language.isoen
dc.publisherSociété Française d'Acoustique
dc.source.titleAcoustics 2012 Nantes
dc.title.enThe parametric propagation in underwater acoustics : experimental results
dc.typeCommunication dans un congrès avec actes
dc.subject.halSciences de l'ingénieur [physics]/Acoustique [physics.class-ph]
bordeaux.page43-47
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.countryFR
bordeaux.title.proceedingAcoustics 2012
bordeaux.conference.cityNantes
bordeaux.peerReviewedoui
hal.identifierhal-01087195
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01087195v1
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