TY - GEN
T1 - Wideband discrete transformation of acoustic signals in underwater environments
AU - Josso, Nicolas F.
AU - Zhang, Jun Jason
AU - Papandreou-Suppappola, Antonia
AU - Ioana, Cornel
AU - Mars, Jerome I.
AU - Gervaise, Cédric
AU - Stéphan, Yann
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77953828283&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77953828283&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2009.5470155
DO - 10.1109/ACSSC.2009.5470155
M3 - Conference contribution
AN - SCOPUS:77953828283
SN - 9781424458271
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 118
EP - 122
BT - Conference Record - 43rd Asilomar Conference on Signals, Systems and Computers
T2 - 43rd Asilomar Conference on Signals, Systems and Computers
Y2 - 1 November 2009 through 4 November 2009
ER -