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

页码：160 / 163

页数：4

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