异常天气时C波段的大气闪烁  

A Study on Atmosphere Scintillation at C-Band in Anomalous Weather

作　　者：沈广德[1] 黄捷 

机构地区：[1]电子部第二十二研究所

出　　处：《电波科学学报》1996年第1期69-73,共5页Chinese Journal of Radio Science

摘　　要：异常天气（雨，雪，雾）时的大气闪烁比晴空时大，且与雨强Ｒ有较好的相关性。但对于一场雨而言，这相关性不明显。异常天气时闪烁谱与晴空一样，均服从指数分布，且谱指数与闪烁指数Ｓ４有较好的相关性。The Study of atmospheric scintillation in rain, fog weather is presented in this paper. When in rain climate, the intensity of rain is important, and its coeficicient for the scintill ation index is well examined.The relationship of intensity of scintillation and rain density is also reduced. In fog climate, the same work is done and big fog effecting radio aignal is just the same as a media density rain. The comparision between clear sky and un-clear sky is also examined. During a rain,their coefficient is not so obvious. The spectral density is compared in different weather,and is the power law with spectral index γ.γ has good coefficient to scintillation index S4.

关 键 词：大气闪烁 闪烁指数 对流层传播 

分 类 号：TN011.3[电子电信—物理电子学]