A 3-DIMENSIONAL ANALYSIS OF ACOUSTIC PROPAGATION IN A PENETRABLE WEDGE SLICE

被引：9

作者：

DEANE, GB ^{[1
]}

TINDLE, CT ^{[1
]}

机构：

[1] UNIV AUCKLAND,DEPT PHYS,AUCKLAND,NEW ZEALAND

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1992年 / 92卷 / 03期

关键词：

D O I：

10.1121/1.403900

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A model for the three-dimensional acoustic field in a penetrable wedge with isovelocity sound-speed profiles and a harmonic, point source is developed using the method of source images. The model is used to compute the field in a plane normal to the wedge apex (a wedge "slice"). A new loss term due to three-dimensional effects is derived and investigated. The field in the sediment of a wedge slice is computed and the mode penetration angles are compared with those obtained by Jensen and Kuperman [J. Acoust. Soc. Am. 67, 1564-1566 (1980)] using the narrow angle parabolic equation and Jensen (private communication) using a coupled mode calculation.

引用

页码：1583 / 1592

页数：10