EFFECT OF THE SPHERICITY OF AN ACOUSTIC-WAVE ON ITS REFLECTION COEFFICIENT FROM A PLANE INTERFACE OF 2 LIQUID-MEDIA

The effect of the sphericity of a unit acoustic wave on its reflection from a plane boundary of an underwater liquid bottom was investigated . An exact solution is presented as simple real integrals over a finit e path, which is convenient for calculations. Results of reflection co efficient calculations as a function of the angle of incidence are giv en as plots demonstrating reflection coefficient dependence on distanc e between a source and the point of reflection. The exact solution obt ained can be used to calculate a reflected wave at an arbitrary point in water for any form and duration of an incident wave. A simple analy tical expression is given for a reflection coefficient at normal incid ence along with its asymptotics for extended times and any angle of in cidence.