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1. 发明公开

EP0447159A2 A method and apparatus for doppler velocity de-aliasing 失效
标题翻译： Verfahren undGerätzur Beseitigung von Aliasing in der Doppler-Geschwindigkeit。
公开(公告)号：EP0447159A2
公开(公告)日：1991-09-18
申请号：EP91302018.6
申请日：1991-03-11
申请人： RAYTHEON COMPANY
发明人： Wieler, James G.
IPC分类号： G01S13/95 , G01S13/532 , G01S13/22
CPC分类号： G01S13/227 , G01S13/532 , G01S13/951 , Y02A90/18
摘要： For real time de-aliasing of the Doppler velocity data in a weather radar system uses a Process Radials routine (20) which processes every valid range gate along a radar dwell by determining if each range gate is within the Nyquist velocity of either the average of four preceding range gates or data from a Windfield Model. To further enhance the de-aliasing process a Process Dual Scans routine (16) is used prior to the Process Radial routine (20) to de-alias velocity data by comparing velocity data from two scans of different pulse repetition frequencies. Subsequent to the Process Radials routine (20), a Minimize Azimuthal Shear routine (22) checks velocity discontinuities from azimuth to azimuth. The de-aliased data is transferred to an Update Windfield Model routine (24) for quality checks of the de-aliased velocity data and updating of the Windfield Model. This complete method of de-aliasing the velocity data is performed during the real time operation of the radar system (30, Fig. 2A).
摘要翻译：对于天气雷达系统中的多普勒速度数据的实时去锯齿，使用一个过程径向程序（20），其通过确定每个范围门是否在奈奎斯特速度范围内四个前面的范围门或来自风场模型的数据。为了进一步增强去锯齿过程，在进程径向程序（20）之前使用过程双扫描程序（16）通过比较不同脉冲重复频率的两次扫描的速度数据来消除速度数据。在过程径向程序（20）之后，最小化方位角剪切程序（22）检查从方位角到方位角的速度不连续性。去锯齿数据被转移到更新风场模型程序（24），用于质量检查解除锯齿速度数据和更新风场模型。在雷达系统（30，图2A）的实时操作期间执行解除速度数据的完全解码的完整方法。

2. 发明授权

EP0447159B1 A method and apparatus for doppler velocity de-aliasing 失效
标题翻译：在多普勒速度去除混叠的方法和设备
公开(公告)号：EP0447159B1
公开(公告)日：1997-08-06
申请号：EP91302018.6
申请日：1991-03-11
申请人： RAYTHEON COMPANY
发明人： Wieler, James G.
IPC分类号： G01S13/95 , G01S13/532 , G01S13/22
CPC分类号： G01S13/227 , G01S13/532 , G01S13/951 , Y02A90/18
摘要： For real time de-aliasing of the Doppler velocity data in a weather radar system uses a Process Radials routine (20) which processes every valid range gate along a radar dwell by determining if each range gate is within the Nyquist velocity of either the average of four preceding range gates or data from a Windfield Model. To further enhance the de-aliasing process a Process Dual Scans routine (16) is used prior to the Process Radial routine (20) to de-alias velocity data by comparing velocity data from two scans of different pulse repetition frequencies. Subsequent to the Process Radials routine (20), a Minimize Azimuthal Shear routine (22) checks velocity discontinuities from azimuth to azimuth. The de-aliased data is transferred to an Update Windfield Model routine (24) for quality checks of the de-aliased velocity data and updating of the Windfield Model. This complete method of de-aliasing the velocity data is performed during the real time operation of the radar system (30, Fig. 2A).

3. 发明公开

EP0447159A3 A method and apparatus for doppler velocity de-aliasing 失效
标题翻译：一种用于多普勒速度消除的方法和装置
公开(公告)号：EP0447159A3
公开(公告)日：1993-03-03
申请号：EP91302018.6
申请日：1991-03-11
申请人： RAYTHEON COMPANY
发明人： Wieler, James G.
IPC分类号： G01S13/95 , G01S13/532 , G01S13/22
CPC分类号： G01S13/227 , G01S13/532 , G01S13/951 , Y02A90/18
摘要： For real time de-aliasing of the Doppler velocity data in a weather radar system uses a Process Radials routine (20) which processes every valid range gate along a radar dwell by determining if each range gate is within the Nyquist velocity of either the average of four preceding range gates or data from a Windfield Model. To further enhance the de-aliasing process a Process Dual Scans routine (16) is used prior to the Process Radial routine (20) to de-alias velocity data by comparing velocity data from two scans of different pulse repetition frequencies. Subsequent to the Process Radials routine (20), a Minimize Azimuthal Shear routine (22) checks velocity discontinuities from azimuth to azimuth. The de-aliased data is transferred to an Update Windfield Model routine (24) for quality checks of the de-aliased velocity data and updating of the Windfield Model. This complete method of de-aliasing the velocity data is performed during the real time operation of the radar system (30, Fig. 2A).

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