Uniform asymptotic evaluation of the continuous spectrum contribution for a stratified ocean
作者:
E. Ammicht,
D. C. Stickler,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1984)
卷期:
Volume 76,
issue 1
页码: 186-191
ISSN:0001-4966
年代: 1984
DOI:10.1121/1.391093
出版商: Acoustical Society of America
关键词: seas;stratification;sound fields;asymptotic solutions
数据来源: AIP
摘要:
The determination of the continuous spectral contribution for a stratified ocean acoustic model can be a difficult and expensive numerical task. A uniform asymptotic technique has been used to calculate the pressure field for the Pekeris model. It is uniform in the sense that it is valid as a mode passes through cutoff. The basic idea of the technique is to exploit the effect of the various singular points of the integrand representing the continuous spectrum. This idea has been further exploited to describe the continuous spectrum contribution for a general stratified ocean. Numerical examples show that this technique is both accurate and fast.
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