| 摘 要： | 1 IntroductionThe characteristics of underwater elastic cylinder comprise two types of acoustic compo-nents. One is elastic scattering highlights, or resonat scattering highlights related with theelasticity of the cylinder, and the other is geometric scattering highlights, or namely mirroredwave and corner waves due to the target shape. The natuxal resonating frequencies appearas modulations on the frequency domain of target echoes. The resonant scattering highlightsdiffer from its incident wa…
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