Research and Improve on a Method of Radial Velocity Azimuth Composite Shear Using Doppler Weather Radar

Wei Yao; Zhang Xing-gan

doi:10.3724/SP.J.1146.2009.00011

Volume 32 Issue 1

Aug. 2010

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Wei Yao, Zhang Xing-gan. Research and Improve on a Method of Radial Velocity Azimuth Composite Shear Using Doppler Weather Radar[J]. Journal of Electronics & Information Technology, 2010, 32(1): 43-47. doi: 10.3724/SP.J.1146.2009.00011

Citation:

Wei Yao, Zhang Xing-gan. Research and Improve on a Method of Radial Velocity Azimuth Composite Shear Using Doppler Weather Radar[J]. Journal of Electronics & Information Technology, 2010, 32(1): 43-47. doi: 10.3724/SP.J.1146.2009.00011

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Research and Improve on a Method of Radial Velocity Azimuth Composite Shear Using Doppler Weather Radar

doi: 10.3724/SP.J.1146.2009.00011

Received Date: 2009-01-07
Rev Recd Date: 2009-09-18
Publish Date: 2010-01-19

Abstract

Abstract

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 squares advantage on Linear fitting and radar datas 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.

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References

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