SEAFLOOR PARAMETERS IDENTIFICATION FROM PARAMETRIC SONAR DATA

摘要

A technique is presented to quantitatively determine the geoacoustic parameters of the uppermost seafloor strata by model-based inversion of normal incidence back-scattered data obtained with a parametric sonar in the 4-12 KHz frequency range. A specific wavelet transform has been defined in order to obtain a significative measure of the discrepancy between the data and the model in the wavelet-transformed domain. The results obtained show that the technique is consistent in estimating the desired parameters.