SOUND-PROPAGATION WITH A LINEAR SOUND-SPEED PROFILE OVER A ROUGH-SURFACE

被引：22

作者：

USCINSKI, BJ

机构：

[1] Ocean Acoustics Group, Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 9EW, Silver Street

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1993年 / 94卷 / 01期

关键词：

D O I：

10.1121/1.407061

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The distribution of an acoustic field propagating at grazing angles over a hard rough surface is described by an integral equation that results from the Helmholz integral in the parabolic approximation. The Green's function corresponding to the case when the sound speed varies linearly with distance from the surface is found. The integral equation is solved analytically for the case of a flat surface. The field distribution in the space above the surface, obtained by numerical methods, is presented for a flat surface and for a rough surface. In both cases, the sound speed varies linearly with distance from the surface.

引用

页码：491 / 498

页数：8

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