新一代天气雷达轴角盒故障的分析处理

CINRAD/SA天气雷达在PPI扫描过程中天线来回摆动,导致雷达无规律出现方位扇形范围无回波,雷达不能正常发挥其有效作用。为查找故障原因,从新一代天气雷达伺服系统信号流程入手,结合雷达基数据分析软件,分析雷达天线运行轨迹,通过信号流程中关键点参数的测量和比较,发现问题出现在轴角编码盒方位环节,导致轴角盒串行方位轴角数据输出不连续,造成雷达无规律出现方位扇形范围无回波。通过对此类故障分析思路与处理经验的总结,对台站级雷达技术保障提供借鉴。

Analyzing and Disposing of Encoder Faults for New Generation Weather Radar

There exists antenna oscillation in PPI scan in Yangjiang CINRAD/SA radar, which may cause data loss in the azimuth sector, leading to limited functions. In order to find the cause of the malfunction, the signal flow of the servo system of the Yangjiang CINRAD/SA radar is analyzed. Combining with the analysis software of base data, the running track of the antenna is examined. Through measuring and comparing the key parameters in the signal flow, it is discovered that the faults are mainly resulted from the azimuth encoder. The analysis methods and experiences in handling are summarized, which is of reference significance for the station level technological support of radar.