On the measurement and the modeling of the correlated noise sources corrupting the marine geological echosounding experiments

摘要

The application of well-established time-series analysis techniques to the modeling of echogram noise processes present in acoustic measurements obtained in a marine environment is examined. Starting from short data records, which are obtained by applying an appropriate Dirichlet-type time window to the sampled reflectogram in such a way that only the noise signals are acquired, it is shown that low-order parametric models are adequate to describe the observed and measured noise sources. The obtained noise models allow the validation of the synthetic generated echograms, which describe the current acoustic-wave propagation phenomena in the marine environment studied.