Analysis and correction of dual PRF velocity data
Analysis and correction of dual PRF velocity data
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DOI：
10.1175/1520-0426(2003)20
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发表时间：
2003-04-01
影响因子：
2.2
通讯作者：
Beekhuis, H
中科院分区：
文献类型：
--
作者：
Holleman, I;Beekhuis, H
在许多操作多普勒天气雷达上都可以使用双重脉冲重复频率（双PRF）技术，用于扩展明确的速度间隔。已定量分析了从以双PRF模式运行的C波段多普勒雷达获得的径向速度数据。速度估计值的标准偏差和交易误差的比例是使用简单模型提取并相关的。已经开发和测试了一种消除噪声并纠正交易错误的双PRF速度数据的后处理算法。结论是，该算法非常有效，并产生高质量的速度数据。
The dual pulse repetition frequency (dual PRF) technique for extension of the unambiguous velocity interval is available on many operational Doppler weather radars. Radial velocity data obtained from a C-band Doppler radar running in dual PRF mode have been analyzed quantitatively. The standard deviation of the velocity estimates and the fraction of dealiasing errors are extracted and related using a simple model. A postprocessing algorithm for dual PRF velocity data, which removes noise and corrects dealiasing errors, has been developed and tested. It is concluded that the algorithm is very efficient and produces high quality velocity data.