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首页> 外文期刊>Journal of Modern Transportation >Propagation characteristics of wideband high-speed railway channel in viaduct scenario at 2.35 GHz
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Propagation characteristics of wideband high-speed railway channel in viaduct scenario at 2.35 GHz

机译:高架桥场景下2.35 GHz宽带高速铁路信道的传播特性

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摘要

In order to obtain accurate characteristics of wireless channels in the viaduct area of China, a channel measurement was taken in a railway viaduct scenario of the Zhengzhou-Xi’an passenger dedicated line with a bandwidth of 50 MHz at 2.35 GHz. The single-slope log-distance model is used to analyze the path-loss (PL), and the distribution of shadow fading (SF) is obtained by statistical methods, which shows that the normal distribution fits the samples well. Ricean K -factor is analyzed by the method of moments, and the variation of K -factor is given along the measured route. Small scale such as delay spread and Doppler behavior are parameterized. Based on empirical channel measurement, this paper provides parameters for the evaluation and simulation work on viaduct scenarios of high-speed railway.
机译:为了获得中国高架桥地区无线信道的准确特性,在郑西铁路客运专线的铁路高架桥场景中进行了信道测量,带宽为2.35 GHz,带宽为50 MHz。用单斜率对数距离模型分析路径损耗(PL),并通过统计方法得到阴影衰落(SF)的分布,表明正态分布很好地拟合了样本。通过矩量法分析Ricean K因子,并沿测量路径给出K因子的变化。诸如延迟扩展和多普勒行为之类的小规模参数化。本文基于经验通道测量,为高速铁路高架桥场景的评估和仿真工作提供了参数。

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