Abstract
An elastic body submerged in water will ring when insonified by sound whose frequency is the same as one of the resonances of that body. Correspondence has been established between these normal mode resonances of the body and the individual circumferential waves predicted by creeping wave theory. Insonifying the target with a relatively long sinusoidal pulse results in a series of superimposed responses consisting of the specular reflection and a series of creeping waves arriving after successive circumnavigations of the body. Echoes, both analytically and experimentally obtained, from spherical targets will be used to identify the properties of the resonance ringing and associate the superimposed echoes with the resonance poles that can be predicted theoretically.
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