L波段雷达在高空气象探测过程中仰角指示跳变的故障排查

Troubleshooting for elevation indication jump in the process of high altitude meteorological observation based on L-band radar

L波段雷达在探测过程中仰角跳变导致测风数据异常的故障时有发生。但此类故障在检查过程中只是偶尔重现,具有一定隐蔽性,无法一次性排除故障,影响高空气象探测质量。文章根据L波段雷达的构成及工作原理,逐步排查可能导致高空气象探测过程中仰角指示跳变的各种原因,最终更换电缆后恢复正常。旨在为业务人员提供此类故障的维修排查思路。

It often occurs currently that elevation angle jump of L-band radar in the process of observation causing the wind data anomalies.But such failures in the process of inspection only occasionally appear with certain concealment,which cannot troubleshoot the faults at one time and might be affecting the quality of high altitude meteorological observation.This paper makes a step-by-step investigation for the various causes that may lead to a jump in elevation indications during high altitude meteorological observation.It is back to normal after the final replacement of the cable,which aims to provide maintenance screening thinking to business staff dealing with such failures.