Abstract:

The formulation of a method to describe the influence that an imbedded object has on an acoustic signal in a waveguide has taken on considerable interest not only for detection of man-made objects, but also in the study of inclusions in the ocean bottom that may have some geophysical significance. In this work, a method that allows one to make theoretical descriptions of quite general form for this kind of problems is considered. Some presented applications illustrate, where the influence of imbedded objects on a received acoustic signal is expected to be observed, and some conditions for which any influence is not observed. [Work sponsored by ONR, the Naval Research Laboratory, and the University of New Orleans.]