Numerical Modelling of Pulse Propagation in Tunnels

被引：6
|
作者：
Zhu, Ning Yan [1 ]
Landstorfer, Friedrich M. [1 ]
机构：
[1] Univ Stuttgart, Inst Hochfrequenztech, D-70569 Stuttgart, Germany
来源：
FREQUENZ | 2008年 / 62卷 / 7-8期
关键词：
Numerical modelling; paraxial approximation; pulse propagation; tunnel;
D O I：
10.1515/FREQ.2008.62.7-8.160
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Recently, a vectorial parabolic equation has been derived for modelling the propagation of time-harmonic electromagnetic waves in tunnels. This paper reports an extension of this paraxial approximation to transient phenomena, namely a time-domain vectorial parabolic wave equation, obtained by analytically Fourier-transforming its frequency-domain counterpart. An efficient and absolute stable solution procedure for the vectorial, four-dimensional approximate wave equation is presented and examples of pulse propagation in tunnels are given.
引用
收藏
页码：160 / 163
页数：4
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