Ka波段沙尘暴效应的高度修正  

Height Modification about Sandstorm Effect in the Ka Waveband

作　　者：蔡本晓[1] 

机构地区：[1]杭州电子工业学院理学院,浙江杭州310018

出　　处：《海南大学学报（自然科学版）》2004年第4期319-322,共4页Natural Science Journal of Hainan University

摘　　要：通过利用大气温度的垂直分布,计算了沙尘暴介电常数随高度的变化,对不久前有学者提出的Ka波段地空路径的传播模型进行修正,从而使得所计算得Ka波段沙尘暴衰减的结果更接近实际.According to the vertical distribution of atmosphere temperature,the sandstorm permittivity that varied with height was calculated.Its spreading model in the Ka waveband along the earh-space paths,which was presented by some scholar not long ago,was modified.As a result,the calculated results were made more approach to the real value.

关 键 词：KA波段 传播模型 衰减 介电常数 垂直分布 沙尘暴 大气温度 高度 路径 

分 类 号：TN927[电子电信—通信与信息系统] P425.55[电子电信—信息与通信工程]