Identification, by the intersecting canonical domain method, of the size, shape and depth of a soft body of revolution located within an acoustic waveguide

The Rayleigh hypothesis is employed to solve the forward problem of scatter ing of a known, arbitrary acoustic wave from a body of revolution immersed in a shallow body of water. The acoustic wavefields obtained in this way ar e then employed as simulated data for the inverse problem of the determinat ion of the (unknown) size, shape and depth of the immersed body, which is k nown to be acoustically soft, axisymmetric in shape and located on the vert ical axis of a Cartesian reference system within the shallow-water waveguid e. This fully 3D inverse problem is solved by the intersecting canonical do main, using multifrequency scattered field data, for two types of body: a n on-convex (indented) spindle rind a conical seamount.