摘要
介绍雷达定量测量降雨的基本原理和运用最优化算法率定雷达测雨参数的方法,其中最优化目标函数选取三种表达式。阐述了集对分析的基本原理和优势,并应用于确定雷达测雨Z-I关系中,将不同方法计算结果进行对比分析。结果表明,集对分析较现有方法优越。
In this paper the basic principle of quantitative precipitation estimation by radar and the optimal algorithm of precipitation parameters calibration are introduced. The expression of optimal objective function takes three forms. Then SPA and its advantages are presented and applied into the determination of the Z-I relationship of radar rainfall measurement. Comparing the results of SPA and the optimization algorithm with other methods, we can find that SPA shows certain advantages.
出处
《水电能源科学》
2008年第2期20-23,共4页
Water Resources and Power
基金
国家自然科学基金资助项目(40675070)
科技部公益研究基金资助项目(2005DIB3J101)
关键词
集对分析
Z-I关系
雷达测雨
SPA
Z-I relationship
radar rainfall measurement
