Modal structure of the wavefield in a range-dependent Pekeris waveguide

被引：0
|
作者：
Virovlyanskii, AL
Lebedev, OV
机构：
[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia
[2] Nizhnii Novgorod State Univ, Nizhnii Novgorod 603600, Russia
来源：
ACOUSTICAL PHYSICS | 1998年 / 44卷 / 04期
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D O I：
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中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Simple quasi-ray formulas for the modal structure of wavefields in a nonadiabatically range-dependent waveguide are obtained. The suggested approach consists in the decomposition of the geometrical optics solution to the Helmholtz equation into modes. The modes for a two-layer model of a shallow sea with a range-dependent bottom profile are calculated as an example. The results are compared with those obtained by the parabolic-equation approach.
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页码：384 / 388
页数：5
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