Modelling Radio Wave Propagation in Tunnels with Ray-Tracing Method

被引：0

作者：

Liu, C. G. ^{[1
]}

Zhang, E. T. ^{[2
]}

Wu, Z. P. ^{[1
]}

Zhang, B. ^{[1
]}

机构：

[1] Wuhan Univ Technol, RF & Microwave Technol Res Ctr, Wuhan 430070, Peoples R China

[2] Wuhan Zhongyuan Elect Informat Corp, Wuhan, Peoples R China

来源：

2013 7TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) | 2013年

关键词：

EM wave propagation; tunnel communication; ray-tracing technique; microwave propagation;

D O I：

暂无

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：

The understanding of propagation characteristics in tunnels is important for communication systems deployed in tunnel environments. In this paper, formulas for path loss calculation based on ray-tracing techniques are presented. Two numerical criteria for terminating simulation processes are investigated together with their verifications. Among them, one criterion is the ending number of reflected rays; the other is the threshold for the last reflected ray. Simulation investigations carried out show that these two criteria are 50 and 0.1% respectively with accuracy in agreement with each other and with the measured results. The simulation results for propagation characteristics are illustrated for some applications with the developed programs.

引用

页码：2317 / 2321

页数：5

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