清远连州CINRAD/SA-D型天气雷达一次故障报警的处理

Processing for a fault alarm of CINRAD/SA-D weather radar in Qingyuan Lianzhou

文章主要针对天气雷达接收机故障判断流程化,以连州市CINRAD/SA-D型天气雷达的1次由于相位噪声变坏导致线性通道杂波抑制变坏的故障为例,通过对接收通道逐级排查,采取双通道配件调换法和排除法缩小故障范围,最终定位故障位置并消除报警使雷达正常工作。同时详细介绍了接收机系统的接收通道、频率源、信号处理系统等多个环节,增强雷达机务员对出现类似故障的应变能力,保证天气雷达的正常运行。

This paper mainly aims at the flow process of fault judgment which happened in weather radar receiver.Taking for example the fault of the weather radar of CINRAD/SA-D in Lianzhou due to the deterioration of the phase noise resulting in the deterioration of the disturbance of the linear channel clutte,according to check the receiving channel step by step,and adopting double channel parts exchange method and exclusive method to narrow the fault range,finally it locates the fault and removes the alarm to make the radar work normally.It also introduces in detail the receiver system,receiving channel,frequency source,signal processing system and so on,which would enhance the strain ability of radar operator for similar faults and ensure the normal operation of weather radar.