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高速铁路环境的横风折射率结构参数建模 被引量:1

Modeling Refractive Index Structure Constant in High-speed Trains Under Cross Winds
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摘要 大气湍流是影响无线电波传播的重要因素,折射率结构参数通常被用来表征大气湍流强度。当横风作用高速列车时会使车身周围湍流场明显变化。将列车风与横风相结合,在复杂风场的环境中推导出适用于高速铁路环境的折射率结构参数模型。通过对模型的分析仿真可知:不同横风侧偏角、横风风速和距列车侧壁距离对折射率结构参数的影响较大,其次为温度、湿度。且在横风较大的情况下,横风侧偏角对折射率结构参数的影响的程度更为剧烈。该模型为研究高速铁路下的电波传播提供了理论参考。 Through the combined train wind and cross wind in this paper,and establishes a refractive index structure parameter model is to study the effects of atmospheric turbulence on the wireless communication of high-speed rail.Through analyzing and simulating the model can deduce:different cross wind direction,speed of cross wind and distance from the side wall of the train have greater impact on refractive index structure parameter.Followed by the temperature and humidity on its impact.
作者 杨柳 赵恒凯
出处 《工业控制计算机》 2017年第12期11-12,15,共3页 Industrial Control Computer
基金 国家自然科学基金项目(61271061)资助
关键词 列车风 横风 无线电波 湍流 折射率结构参数 train wind crosswind the radio waves turbulence the refractive structure constant
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