Bayesian time delay estimation for ocean acoustic tomography

We use the concept of Bayesian estimation for estimating the time delays in multipath ocean acoustic tomography (MOAT). The time delay estimation (TDE) from a signal waveform can be seen as a full inversion problem which has to be associated to the geophysical inversion (GI) scheme. Using as a consequence some Bayesian algorithms, they cope with some problems which classically happen in MOAT (unstability and poor signal to noise ratio data). A supplementary reason to use Bayesian algorithms is that it is easy to find some pertinent prior information. Bayesian TDE gives a chance for the tomographic tool to apply in difficult oceanic conditions.<
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