Identification of the size, proportions and location of a soft body of revolution in a shallow-water waveguide

A mode-matching method is first presented for solving a forward 3D problem of the scattering of an acoustic wave from a body of revolution located on the vertical axis of a cylindrical reference system within a horizontal shallow-water waveguide. Results provided by the above-mentioned method are then used to determine the sound field in such a waveguide and to study the inverse problem of determining the size, proportions and location of an embedded object. The difficulties that can be encountered when solving this inverse problem are analysed and a strategy is proposed for overcoming some of them.