中文摘要：

采用生成的随机粗糙面函数模仿矿井的粗糙壁，将井下巷道看作是具有频率色散的有耗传输线，把巷道壁粗糙的影响模拟为具有损耗的阻抗的级联，结合实际矿井环境建立了阻抗级联模型，分析了粗糙度等参数对传播特性的影响。得到以下结论：当粗糙壁均方根高度数值较大时，粗糙面的起伏深度增加，引起的粗糙附加损耗增大。相关长度较小时粗糙面起伏频繁，引起的粗糙附加损耗增大；接收功率减小，而且频率越高，影响越大。

英文摘要：

This paper used the generated random rough surface function to imitate the roughness of the mine wall, regarding the mine channel as a loss transmission line with frequency dispersion and the impact of the channel rough wall as impedance cascade with losses. For the actual test environment of mine tunnels, the cascade impedance model was established, the impact of roughness and other parameter on the propagation characteristics were simulated and analyzed. The following conclusions were gained, when RMS height values is greater, the depth fluctuation of rough side increases, raising the additional rough losses. When the correlation length becomes less, the fluctuation of rough side is more frequent, raising the additional rough losses and diminishing the received power. Furthermore, the higher the frequency is, the larger the influence is.