THE ALGORITHM AND VERIFICATION OF GROUND CLUTTER IDENTIFICATION BASED ON FUZZY LOGIC
HUANG Xing-you
LI Ying-ying
ZHANG Shuai
HUANG Shu-rong
WEI Kai-hua
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.
Keywords：weather radarground clutter identificationfuzzy logicechoes characteristicsquality control
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 305-313 )