地铁近影现象的测量与建模

2010 5th International ICST Conference on Communications and Networking in China Pub Date : 2010-08-01 DOI:10.4108/IWONCMM.2010.6

K. Guan, Z. Zhong, B. Ai, C. Briso-Rodríguez

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引用次数: 15

摘要

本文主要研究地铁隧道内传播特性的一个重要方面:实际环境中的近影现象。为了表征这种效应，在马德里地铁的真实环境下，在2.4 GHz频段进行了精确测量。通过对测量结果的分析，揭示了近影现象在传播过程中的特点，并提出了相应的补偿近影效应的工程建议。最后，建立了包括宽隧道和窄隧道内近阴影、快速衰落和衰减的深度、持续时间和长度的统计模型并进行了仿真。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Measurement and modeling of subway near shadowing phenomenon

This paper focuses on one vital aspect in propagation characteristics inside subway tunnels: near shadowing phenomenon in a practical environment. In order to characterize this effect, an accurate measurement has been made at 2.4 GHz in a real environment in Madrid subway. By analyzing the numerical results in this measurement, the characteristic of near shadowing phenomenon in propagation process has been revealed and corresponding engineering suggestions have been given in order to compensate the near shadowing effect. Finally, statistical model including the depth, duration and length of near shadowing, fast fading and attenuation inside wide tunnel and narrow tunnel has been built and simulated.

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2010 5th International ICST Conference on Communications and Networking in China

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