Title :
Multipath time-delay detection and estimation for ocean acoustic tomography: a Bayesian approach
Author :
Poree, Fabienne ; Chonavel, Thierry ; Terre, Thierry
Author_Institution :
ENST de Bretagne, Brest, France
Abstract :
A new method for multipath channel time delay estimation is proposed. The authors present a Bayesian approach which takes into account the attenuations and noise distributions at the output of the receiver. This leads to a simple criterion which can be written as the I 1 norm of an affine function of the desired attenuations. The good behaviour of this algorithm is shown on synthetic and real acoustic oceanic tomographic data
Keywords :
Bayes methods; acoustic tomography; oceanographic techniques; oceanography; underwater sound; Bayes method; Bayesian approach; I1 norm; acoustic propagation; acoustic tomography; acoustics; algorithm; attenuation; estimation; measurement technique; multipath channel time delay; multipath time-delay detection; noise distribution; ocean; underwater sound; Acoustic propagation; Acoustic signal detection; Acoustic waves; Attenuation; Bayesian methods; Delay effects; Delay estimation; Matched filters; Oceans; Tomography;
Conference_Titel :
OCEANS '99 MTS/IEEE. Riding the Crest into the 21st Century
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5628-4
DOI :
10.1109/OCEANS.1999.800243
