The parametric propagation in underwater acoustics : experimental results
| hal.structure.identifier | Institut de Recherche de l'Ecole Navale [IRENAV] | |
| dc.contributor.author | BOUTTARD, Etienne | |
| hal.structure.identifier | Institut de Recherche de l'Ecole Navale [IRENAV] | |
| dc.contributor.author | LABAT, Valérie | |
| hal.structure.identifier | Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN] | |
| dc.contributor.author | BOU MATAR, Olivier | |
| hal.structure.identifier | Département Signal et Communications [SC] | |
| dc.contributor.author | CHONAVEL, Thierry | |
| dc.date.accessioned | 2021-05-14T09:58:41Z | |
| dc.date.available | 2021-05-14T09:58:41Z | |
| dc.date.issued | 2012-04 | |
| dc.date.conference | 2012-04 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/77966 | |
| dc.description | In 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.abstractEn | In 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.iso | en | |
| dc.publisher | Société Française d'Acoustique | |
| dc.source.title | Acoustics 2012 Nantes | |
| dc.title.en | The parametric propagation in underwater acoustics : experimental results | |
| dc.type | Communication dans un congrès avec actes | |
| dc.subject.hal | Sciences de l'ingénieur [physics]/Acoustique [physics.class-ph] | |
| bordeaux.page | 43-47 | |
| bordeaux.hal.laboratories | Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295 | * |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | CNRS | |
| bordeaux.institution | INRAE | |
| bordeaux.institution | Arts et Métiers | |
| bordeaux.country | FR | |
| bordeaux.title.proceeding | Acoustics 2012 | |
| bordeaux.conference.city | Nantes | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01087195 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01087195v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=Acoustics%202012%20Nantes&rft.date=2012-04&rft.spage=43-47&rft.epage=43-47&rft.au=BOUTTARD,%20Etienne&LABAT,%20Val%C3%A9rie&BOU%20MATAR,%20Olivier&CHONAVEL,%20Thierry&rft.genre=proceeding |
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