The parametric propagation in underwater acoustics : experimental results
dc.contributor.author
hal.structure.identifier | BOUTTARD, Etienne
|
dc.contributor.author
hal.structure.identifier | LABAT, Valérie
|
dc.contributor.author
hal.structure.identifier | BOU MATAR, Olivier
|
dc.contributor.author
hal.structure.identifier | CHONAVEL, Thierry
|
dc.date.accessioned | 2014 |
dc.date.available | 2014 |
dc.date.issued | 2012 |
dc.date.submitted | 2014 |
dc.identifier.other | hal-00801091 |
dc.identifier.uri | http://hdl.handle.net/10985/8988 |
dc.description.abstract | 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.rights | Pre-print |
dc.title | The parametric propagation in underwater acoustics : experimental results |
dc.typdoc | Communication avec acte |
dc.localisation | Centre de Paris |
dc.subject.hal | Sciences de l'ingénieur: Acoustique |
ensam.audience | Non spécifiée |
ensam.conference.title | Acoustics 2012 |
ensam.conference.date | 2012-04 |
ensam.country | France |
ensam.title.proceeding | Acoustics 2012 Nantes |
ensam.page | 43-47 |
ensam.city | Nantes |
hal.identifier | hal-01087195 |
hal.version | 1 |
hal.submission.permitted | updateMetadata |
hal.status | accept |