摘要
天气雷达跟踪回波运动,或卫星云图上示踪云测风,广泛使用相关分析法。本文对比方法中的判别因子进行了理论分析,数值模拟和个例实验。结果表明,在回波结构变化时,用原点矩相关系数R_3作为相关分析法的判定因子跟踪回波或示踪云,较中心矩相关系数R_1和相关亮度综合因子R_2有一定的优越性。
Cross-correlation analysis is widely used in tracking radar echoes to determine
the internal motion of storm with conventional weather radar and obtaining
cloud motion from geostationary satellite image data. Three pattern recognition
parameters used in this technique are discussed in the paper. The results from
theoretical analyses, numerical simulatons, and a case-study about the three
pattern recognition parameters show that tie parameter R3f the original moment
correlation coefficient, has some superiority over the other two, Rl?the central
moment correlation coefficient, and R2, the correlation-brightness coefficient.
出处
《气象科学》
CSCD
北大核心
1992年第1期71-79,共9页
Journal of the Meteorological Sciences
