%0 Conference Proceedings
%T Wideband discrete transformation of acoustic signals in underwater environments
%+ 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
%Z financé par EDF
%< avec comité de lecture
%Z Département Images et Signal
%( Proceedings of Signals, Systems and Computers, 2009 Conference Record of the Forty-Third Asilomar Conference on
%B ACSSC 2007 - 43rd Annual Asilomar Conference on Signals Systems and Computers
%C Pacific Grove, Californie, United States
%P 118 - 122
%8 2009-11-01
%D 2009
%R 10.1109/ACSSC.2009.5470155
%Z Engineering Sciences [physics]/Signal and Image processing
%Z Computer Science [cs]/Signal and Image ProcessingConference papers
%X We propose the use of discrete time-scale transformations of acoustic signals to characterize the wideband effect of underwater environment propagation. The representation depends on the Mellin transform, and it can be used to efficiently process the effect of the underwater environment. For sparse environments, we also consider a new approach with reduced computational complexity. The approach is based on a warping lag-Doppler filtering technique in the wideband ambiguity function plane to separate ray paths and estimate their parameters. We validate the signal representation and filtering approach using real experimental data from the BASE07 experiment
%G English
%Z EDF
%2 https://hal.science/hal-00444394/document
%2 https://hal.science/hal-00444394/file/Asilomar09_josso.pdf
%L hal-00444394
%U https://hal.science/hal-00444394
%~ 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