CAJ | 학술논문

利用随机介质中波传播理论研究了随机雨介质中信号的起伏特性,研究了降雨散射环境对多径信道中接收信号包络概率密度函数的影响,导出了降雨环境下单波和双波模型的计算公式,讨论了评估降雨环境中的莱斯衰落分布和瑞利衰落分布多径信道概率密度函数的研究方法.文中的研究方法对于雪、沙尘等环境中多径信道的信号包络概率密度函数也适用.
이용수궤개질중파전파이론연구료수궤우개질중신호적기복특성,연구료강우산사배경대다경신도중접수신호포락개솔밀도함수적영향,도출료강우배경하단파화쌍파모형적계산공식,토론료평고강우배경중적래사쇠락분포화서리쇠락분포다경신도개솔밀도함수적연구방법.문중적연구방법대우설、사진등배경중다경신도적신호포락개솔밀도함수야괄용.
The fluctuant peculiarities of a signal passing through rain are studied by the theory of waves propagating through a random media. The detailed formulae are deduced for single-wave channel and two-wave channel. The methods evaluating the ef-fects on Rayleigh fading distribution model and Rician fading distribution model induced by rain scattering are discussed. The meth-otis used in this paper is effective for studying the impacts of meteorological scattering environment (snow, dust-storm, etc.) on the envelope probabih'ty density functions in multi-path channels.