| 摘要: |
| 移动式双偏振雷达在冰雹外场观测观测时位置的变化、雷达信号本身的涨落以及降水系统的演变等原因会造成测量参量产生较大脉动，使用小雨法对其差分反射率因子( )进行了系统误差标定。同时将各参量奇异值剔除后，当信噪比SNR>=10dB时，雷达测量的各偏振参量值可信。分析了3、5、7、9、11点平滑处理沿径向分布廓线，认为本雷达采用7点平滑处理，既考虑了参量脉动性的减小，也避免丢失真实信息。 |
| 关键词: 双偏振雷达；差分反射率因子；系统误差；平滑 |
| DOI： |
| 投稿时间：2020-09-20修订日期：2021-01-21 |
| 基金项目: |
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| Data processing of mobile X-band dual-polarization radar |
| liwei,Tang piru,Lihao |
| (Guizhou Province Weather Modification office) |
| Abstract: |
| The change of the position of the mobile dual-polarization radar in the hail field observation, the fluctuation of the radar signal itself and the evolution of the precipitation system will cause the phenomenon that the measured parameters produce a large pulse. The system error calibration of was carried out by light rain method. At the same time, when SNR is greater than or equal to 10dB, the polarization parameters of radar are credible. The radial distribution profile of 3-point, 5-point,7-point,9-point and 11-point is analyzed, and it is considered that 7-point smoothing is adopted in this radar, which not only takes into account the reduction of parametric pulsation, but also avoids the loss of real information. |
| Key words: dual-polarization radar; ZDR；system error；smoothing |
