提高多普勒天气雷达晴空探测能力的一种方法  

A METHOD FOR IMPROVING THE PROBING ABILITY OF DOPPLER WEATHER RADAR IN THE CLEAR AIR

作　　者：葛润生[1] 朱晓燕[1] 姜海燕[1] 

机构地区：[1]中国气象科学研究院,北京100081

出　　处：《应用气象学报》2000年第3期257-263,共7页Journal of Applied Meteorological Science

基　　金：国家重点基础研究项目!"我国重大天气灾害的形成机理和预测理论研究"的资助

摘　　要：该文通过对晴空大气返回信号特性的分析 ,提出采用相干累积技术 ,有可能提高多普勒天气雷达探测晴空大气的能力 ,具体测算了提高探测能力的限度 ,并对雷达信号处理器适应晴空探测进行了改进设计 .By analyzing the characteristics of echo signal in the clear air, a coherent integral method is presented, which can improve the probing ability of Doppler weather radar in the clear air, and the limit of the improved ability is calculated. Based on the study, the design of the radar signal processor is improved to be applicable to the detection in the clear air.[WT5BZ] [WT5HZ]

关 键 词：多普勒天气雷达 相干累积 晴空大气 

分 类 号：P412[天文地球—大气科学及气象学]