热带气象学报2018，Vol.34Issue(3)：305-313,9.DOI:10.16032/j.issn.1004-4965.2018.03.003
基于模糊逻辑的地物回波识别方法及效果检验
THE ALGORITHM AND VERIFICATION OF GROUND CLUTTER IDENTIFICATION BASED ON FUZZY LOGIC
摘要
Abstract
This paper proposes a method for ground clutter identification based on the fuzzy logic technique in CINRAD. Derived from the characteristics of radar echoes in typical cases, membership functions and their weights vary with radar reflectivity. This method deals with the echo at precipitation intensity of no less than 15 dBz but leaves the echo at nonprecipitation intensity untreated, thus keeping weak characteristic echoes useful for nowcasting of such features as clear air turbulence and gust fronts. To weaken the influence from the ground clutter further, gaps created by removing ground clutter will be filled based on the continuity of echoes in the vertical direction. This algorithm of identification has been tested in two ways and the result shows that it performs well in ground clutter identification.关键词
天气雷达/地物识别/模糊逻辑/回波特性/质量控制Key words
weather radar/ground clutter identification/fuzzy logic/echoes characteristics/quality control分类
天文与地球科学引用本文复制引用
黄兴友,李盈盈,张帅,黄书荣,韦凯华..基于模糊逻辑的地物回波识别方法及效果检验[J].热带气象学报,2018,34(3):305-313,9.基金项目
国家自然科学基金项目(41475034) （41475034）
国家重点基础研究发展计划(973 计划)项目(2013CB430101)共同资助 （973 计划）
