%0 Conference Proceedings %T On the Characterization of Time Scale Underwater Acoustic Signals Using Matching Pursuit Decomposition %+ GIPSA - Signal Images Physique (GIPSA-SIGMAPHY) %+ Signal Processing and Adaptive Sensing (SPAS) Laboratory (SPAS Lab) %+ Développement des Technologies Nouvelles (DTN) %+ Service Hydrographique et Océanographique de la Marine (SHOM) %A Josso, Nicolas %A Zhang, Jun, J. %A Papandreou-Suppappola, Antonia %A Ioana, Cornel %A Mars, Jerome, I. %A Gervaise, Cedric %A Stéphan, Yann %< avec comité de lecture %( Proceedings of OCEANS'09 MTS/IEEE Conference %B OCEANS 2009 - OCEANS '09 MTS/IEEE. Marine Technology for our Future: Global and Local Challenges %C Biloxi, United States %P n/c %8 2009-10-26 %D 2009 %Z Computer Science [cs]/Signal and Image Processing %Z Engineering Sciences [physics]/Signal and Image processingConference papers %X We investigate a characterization of underwater acoustic signals using extracted time-scale features of the propagation channel model for medium-to-high frequency range. The underwater environment over these frequencies causes multipath and Doppler scale changes on the transmitted signal. This is the result of the time-varying nature of the channel and also due to the relative motion between the transmitter-channel-receiver configuration. As a sparse model is essential for processing applications and for practical use in simulations, we employ the matching pursuit decomposition algorithm to estimate the channel time delay and Doppler scale change model attributes for each propagating path. The proposed signal characterization was validated for sparse channel profiles using real-time data from the BASE07 experiment. %G English %Z MODE %2 https://hal.science/hal-00455324/document %2 https://hal.science/hal-00455324/file/OCEANS09_josso.pdf %L hal-00455324 %U https://hal.science/hal-00455324 %~ ENSTA-BRETAGNE %~ UGA %~ CNRS %~ UNIV-GRENOBLE1 %~ UNIV-PMF_GRENOBLE %~ UNIV-GRENOBLE3 %~ INPG %~ GIPSA %~ GIPSA-DIS %~ GIPSA-SIGMAPHY %~ ENSTA-BRETAGNE-STIC %~ ENSIETA-DTN %~ UGA-TEST-BIS %~ UGA-TEST-TER %~ UGA-TEST-QUATER %~ CMM