A technique for generating synthetic acoustic fields in shallow water
作者:
Michael S. Wengrovitz,
George V. Frisk,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1984)
卷期:
Volume 76,
issue S1
页码: 11-11
ISSN:0001-4966
年代: 1984
DOI:10.1121/1.2021704
出版商: Acoustical Society of America
数据来源: AIP
摘要:
A numerical scheme for generating both the trapped mode and continuum portions of acoustic fields for a horizontally stratified ocean and bottom is presented. The technique is based on the fact that the branch line integral corresponding to the continuum portion of the field can be performed by Hankel transforming a modified Green's function. The modified Green's function is obtained by removing the pole contributions from the actual Green's function. The continuum portion is then added to the trapped mode portion to form the total synthetic field. The technique has the advantage that it is fast, accurate, and can be used for a more general geoacoustic model than the Pekeris waveguide. Synthetic results for several examples are presented and discussed.
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