通信距离对隧道多径信道特性的影响

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 Pub Date : 1900-01-01 DOI:10.1109/ISAPE.2003.1276824

Bingyu Li, S. Zhang

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引用次数: 2

摘要

采用射线追踪法模拟了隧道中宽带无线电波的传输特性。仿真结果表明，隧道中多径传播衰减引起的均方根时延扩展/spl / tau//sub rms/随通信距离的增加而变化。因此，信道的相关带宽与隧道内的通信距离有关。多径传播衰减引起的衰减也随通信距离的变化而变化。

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The influence of communication distance on multipath channel characteristic of tunnel

Ray-tracing method was used to simulate the characteristic of wide band radio wave transmission in tunnel. The simulation results showed that the root-mean-square delay spread /spl tau//sub rms/ caused by multipath propagation fade varied with the communication distance in tunnel. Therefore the correlation bandwidth of the channel was connected with the communication distance in tunnel. The attenuation caused by multipath propagation fade varied with the communication distance too.

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来源期刊

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003

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