Modeling of Echoes from Extended Targets in Shallow Water

This document describes an effort to integrate existing target and environmental models to allow the prediction of echoes from targets in a shallow water environment using realistic transmitted waveforms. A primary objective was the development of a numerical tool that could examine the effect of a medium on target echo characteristics. Echoes were generated and comparisons made in a shallow water environment by using a linear frequency modulated signal, the generic sonar model, and the frequency response functions of a rigid sphere and an array of five spheres. Echo modeling, Echo prediction, Generic sonar model, Shallow water, Target echo, Target modeling.