星载SAR系统设计中的雨衰估算  

Estimation of Rain Attenuation in Spaceborne SAR System Design

作　　者：辛培泉[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《现代雷达》2004年第9期15-19,共5页Modern Radar

摘　　要：主要讨论了微波信号大气传播中降雨衰减的估算方法。基于我国部分地区降雨强度长期累计分布 ,计算了部分地区X波段信号传输的降雨衰耗。针对星载SAR的特点 ,分析了雨衰对SAR的影响 。The estimation method of rain attenuation that microwave transmit in atmosphere is discussed. Based on long-term add-up distributing of rain drop intensity in part areas of our country, the rain attenuation of X-band signal transmitting is computed. For the characteristic of spaceborne SAR, the influence of rain attenuation is analyzed, and the rain attenuation requirement designed for spaceborne SAR is developed.

关 键 词：星载SAR 降雨衰减 降雨率 传输损耗 

分 类 号：TN958[电子电信—信号与信息处理]