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| Identification and removal of radial interference echo of Doppler weather radar |
| Guo Chunhui1, Wang Xu2, Yuan Wei1 |
1.Zhaoqing Meteorological Bureau, Zhaoqing 526000;
2.Chengdu Information Engineering College, Chengdu 610000 |
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Abstract Meteorological targets can be detected by Doppler weather radar.Expect sounding the echo of meteorological targets, some electromagnetic wave of non-meteorological goals which has the same frequency with the radar also can be scattered into the radar receive system and forms clutter, which is called the radial interference echo.It is one of the important factors that pollutes radar echo data and has a great effect on the quantitative application of radar data.This paper introduces how to identify the radial interference echo.And three amendment methods including interpolation, median filter and multi-function interpolation are described.Meanwhile, the three methods are compared with each other and their advantages and limitations are analyzed.The results demonstrate that the above methods for base data processing can identify and eliminate the radial interference echo efficiently, which help to improve the quality of base products and post-secondary radar exported products.
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Received: 30 December 2013
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2014, Vol. 31 
