ANALYTICAL TIME DOMAIN NORMAL MODE SOLUTION OF AN ACOUSTIC WAVEGUIDE WITH PERFECTLY REFLECTING WALLS

被引：4
|
作者：
Sertlek, Huseyin Ozkan [1 ,2 ]
Aksoy, Serkan [3 ]
机构：
[1] Leiden Univ, Inst Biol, Behav Biol Grp, NL-2300 RA Leiden, Netherlands
[2] Inst Informat Technol, TUBITAK BILGEM, Gebze, Turkey
[3] Gebze Inst Technol, Dept Elect Engn, Gebze, Turkey
来源：
JOURNAL OF COMPUTATIONAL ACOUSTICS | 2013年 / 21卷 / 02期
关键词：
Acoustic propagation; normal modes; time domain analysis; SHALLOW-WATER; PROPAGATION; BOTTOM;
D O I：
10.1142/S0218396X12500269
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Solution of wide-band underwater acoustic problems with the classical Normal Mode method in the frequency domain needs to solve the problem repeating for every frequency component of the wide-band source signal. In this paper, a direct and causal analytical Time Domain Normal Mode Method is presented for arbitrary time-dependent acoustic sources for a single layered isovelocity waveguide. An incomplete separation of variables technique is used to solve the inhomogeneous wave equation, directly in the time domain. Therefore, it becomes possible to calculate the time domain acoustic pressure in a single run.
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页数：12
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