%0 Journal Article %T Dynamic imaging of a capillary-gravity wave in shallow water using amplitude variations of eigenbeams %+ Institut des Sciences de la Terre (ISTerre) %+ GIPSA - Signal Images Physique (GIPSA-SIGMAPHY) %+ Woods Hole Oceanographic Institution (WHOI) %+ Institut de Recherche Dupuy de Lôme (IRDL) %+ Imagerie Ultrasonore %A van Baarsel, Tobias %A Roux, Philippe %A Mars, Jerome, I. %A Bonnel, Julien %A Arrigoni, M. %A Kerampran, Steven %A Nicolas, Barbara %< avec comité de lecture %@ 0001-4966 %J Journal of the Acoustical Society of America %I Acoustical Society of America %V 146 %N 5 %P 3353-3361 %8 2019-11 %D 2019 %R 10.1121/1.5132939 %Z Engineering Sciences [physics]/Signal and Image processing %Z Engineering Sciences [physics]/Acoustics [physics.class-ph] %Z Sciences of the Universe [physics]/Ocean, AtmosphereJournal articles %X Dynamic acoustic imaging of a surface wave propagating at an air-water interface is a complex task that is investigated here at the laboratory scale through an ultrasonic experiment in a shallow water waveguide. Using a double beamforming algorithm between two source-receiver arrays, the authors isolate and identify each multi-reverberated eigenbeam that interacts with the air-water and bottom interfaces. The waveguide transfer matrix is recorded 100 times per second while a low-amplitude gravity wave is generated by laser-induced breakdown at the middle of the waveguide, just above the water surface. The controlled, and therefore repeatable, breakdown results in a blast wave that interacts with the air-water interface, which creates ripples at the surface that propagate in both directions. The amplitude perturbations of each ultrasonic eigenbeam are measured during the propagation of the gravity-capillary wave. Inversion of the surface deformation is performed from the amplitude variations of the eigenbeams using a diffraction-based sensitivity kernel approach. The accurate ultrasonic imaging of the displacement of the air-water interface is compared to simultaneous measurements with an optical camera, which provides independent validation. %G English %2 https://hal.science/hal-02380508/document %2 https://hal.science/hal-02380508/file/_pdf_archive_JASMAN_vol_146_iss_5_3353_1.pdf %L hal-02380508 %U https://hal.science/hal-02380508 %~ INSERM %~ UNIV-ST-ETIENNE %~ IRD %~ INSU %~ UNIV-BREST %~ UNIV-SAVOIE %~ ENSTA-BRETAGNE %~ UGA %~ CNRS %~ UNIV-LYON1 %~ UNIV-UBS %~ INSA-LYON %~ INPG %~ OSUG %~ GIPSA %~ GIPSA-DIS %~ GIPSA-SIGMAPHY %~ ENSTA-BRETAGNE-STIC %~ CREATIS %~ GIP-BE %~ UBS %~ ENIB %~ ISTERRE %~ IRDL %~ INSA-GROUPE %~ UDL %~ UNIV-LYON %~ ENSTA-BRETAGNE-MECA %~ TEST-HALCNRS %~ UGA-COMUE %~ USMB-COMUE %~ ANR %~ ENSTA-BRETAGNE-PTR3-IRDL