一种改进气象雷达测雨性能的新方法  

A New Method to Improve the Properly of Meteorologic Radar for Measuring Rain

作　　者：胡大璋[1] 

机构地区：[1]中国电波传播研究所青岛研究中心

出　　处：《电子学报》1995年第6期20-23,共4页Acta Electronica Sinica

基　　金：电子科学基金

摘　　要：常规气象雷达无法分离雷达反射率和雨衰减率，因此用它测雨具有一些原理上的误差．本文提出一种雷达和卫星系统反演沿地空路径降雨率分布的新方法．推导出反演沿路径雨衰减率的递推方程组。给出了实现该方法的雷达和卫星联合测雨系统，以及应用该系统测量得到沿地空路径降雨率分布的典型结果。Conventional meteorologic radar cannot distinguish radar reflectivity and specific attenuation of rain. There is some principled error to measuring rain by it. A new method on inversing rain rate distribution along Earth-Space path by radar-satellite system is presented in this paper. A recurrent formula of specific attenuation of rain is derived. A radar-satellite system for measuring rain is given. The typical results of distribution of rainfall rate along Earth-Space path are measured by this system.

关 键 词：雷达反射率 雨衰减率 降雨率 气象雷达 

分 类 号：TN959.4[电子电信—信号与信息处理]