Research and improve on a method of radial velocity azimuth composite shear using doppler weather radar

被引：0
|
作者：
Wei Y. [1 ,2 ]
Zhang X.-G. [1 ,2 ]
机构：
[1] Department of Electronic and Engineering, Nanjing University
[2] Key Laboratory of Millimeter Wave
来源：
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2010年 / 32卷 / 01期
关键词：
Fitting window; Least squares; Radial velocity azimuth composite shear; Weather modification; Weather radar;
D O I：
10.3724/SP.J.1146.2009.00011
中图分类号：
学科分类号：
摘要：
Based on the research of a differential filtering method retrieving composite shear from Doppler radar velocity data, considering the problems of this method, such as the number of edge detection points is too small, combined with the least square's advantage on Linear fitting and radar data's radial distribution character, this paper presents a method of least squares based on different "fitting window". These two methods are compared and analyzed by using computing positioning accuracy method and so on. The method of least squares is better than the differential filtering method on positioning accuracy, identification ability, edge detection and so on. During the 2008 Beijing Olympic Games, by using the method of least squares, the radial velocity azimuth composite shear weather product provides some important information for the weather modification.
引用
收藏
页码：43 / 47
页数：4
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