降雨对雷达探测性能的影响  

Influences of Rain on Radar′s Detection Performance

作　　者：张蕊[1] 赵振维[1] 林乐科[1] 

机构地区：[1]中国电波传播研究所,山东青岛266071

出　　处：《现代雷达》2007年第1期51-54,共4页Modern Radar

摘　　要：文中拟合得到了由降雨的雷达体反射率反演雨衰减率的公式，适用频率1～100GHz，并且给出了降雨存在时的雷达方程、最大作用距离以及雷达接收信号信噪比与信杂比的变化。文中的结果对降雨存在时雷达的目标检测具有指导意义。A new model is developed for the computation of rain specific attenuation from rain volume reflectivity, for frequencies from 1 GHz to 100 GHz, and the radar equation, maximum range and signal-to-noise ratio and signal-to-clutter ratio in rain have also been analyzed herein. These results have practical meaning in radar target detecting during raining.

关 键 词：雨衰减率 体反射率 雷达方程 最大作用距离 信噪比 

分 类 号：TN953[电子电信—信号与信息处理]