Subway tunnel guided electromagnetic wave propagation at mobile communications frequencies

被引：55

作者：

Didascalou, D ^{[1
]}

Maurer, R ^{[1
]}

Wiesbeck, W ^{[1
]}

机构：

[1] Univ Karlsruhe, Inst Hochfrequenztech & Elekt, D-76128 Karlsruhe, Germany

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2001年 / 49卷 / 11期

关键词：

geometrical optics; measurements; mobile communications; ray launching; ray tracing; subway; tunnels; wave propagation;

D O I：

10.1109/8.964095

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：

A measurement campaign has been carried out in the Berlin subway to characterize electromagnetic wave propagation in underground railroad tunnels. The received power levels at 945 and 1853.4 MHz are used to evaluate the attenuation and the fading characteristics in a curved arched-shaped tunnel. The measurements are compared to ray-optical modeling results, which are based on ray density normalization. It is shown that the geometry of a tunnel, especially the cross-sectional shape and the course, is of major impact on the propagation behavior and thus on the accuracy of the modeling, while the material parameters of the building materials have less impact.

引用

页码：1590 / 1596

页数：7

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