L波段气象探空雷达角度自动跟踪系统故障分析

角度自动跟踪系统是气象探空雷达重要组成部分,通过对空中运动气球携带电子探空仪的跟踪将温度、湿度、气压电码发送到雷达接收系统,同时通过测距和跟踪电子探空仪的方位、仰角计算出当前时间的风向、风速,以此来完成气象5个要素的探测。目前,该型号雷达在使用过程中故障率最高的是角度自动跟踪系统。文中根据振幅和差式假单脉冲技术原理、天线传输馈线原理,结合2个典型的故障案例,分析了故障的成因,给出了故障诊断测试方法,为实时气象探空业务提供了可靠保障。

Fault Analysis for the Angle Automatic Tracking About L Band Meteorological Sounding Radar

Angle automatic tracking is an important constituent for the meteorological sounding radar.Temperature,humidity,barometric pressure telegraph code are transmitted to the radar receiving system through tracking the airborne movement balloon with electron sonde.Simultaneously,wind direction and wind speed at the current time are calculated through the range finder and the tracking electron sonde position and elevation angle.The meteorological 5 essential factors are completed with this method.At present,and the automatic angle tracking system is the hightest point of this type radar in using process.According to the principle of the oscillation amplitude and difference-like vacation single pulse technology and the antenna transmission feedline,and two typical cases,fault origin is analyzed and a diagnosis method is presented in this paper.This method can provide reliable service maintenance and support for real-time meteorological sounding.