CINRAD/SA雷达闪码故障分析和排查方法  

Statistical Analysis and Checking Methods of Code Jumping Malfunction in CINRAD/SA Radar

作　　者：郭泽勇 梁国锋 周钦强[2] 李建勇[2] 刘永亮 王科[4] 

机构地区：[1]广东省阳江市气象局,阳江529500 [2]广东省大气探测技术中心,广州510080 [3]广西区气象技术装备中心,南宁530022 [4]北京敏视达雷达有限公司,北京100085

出　　处：《气象科技》2015年第1期22-29,共8页Meteorological Science and Technology

基　　金：广东省气象科技项目"基于WEB的雷达故障案例采集与处理平台"(2012B36)和"天线角码跟踪技术在天气雷达监控中的应用"(2012B18)共同资助

摘　　要：天线伺服系统是CINRAD/SA天气雷达的重要组成部分,大部分组件长期处于机械运转中,且线路复杂,是雷达系统中故障率较高的部分,其中,闪码故障发生概率较大。本文对2007—2013年全国CINRAD/SA雷达站收集的68个闪码故障案例进行统计分析,结果表明,电机、旋转变压器、汇流环、轴角编码盒、光纤链路、数字控制单元等环节均有可能导致闪码。结合CINRAD/SA雷达伺服系统天线角码信号流程和关键点的参数特征,对可能导致雷达闪码故障的所有环节逐个进行分析,归纳总结出CINRAD/SA雷达出现此类故障的排查方法,并从收集的案例中选取5个典型个例展开分析。通过统计样本案例的故障归属,提出轴角闪码时检测部件的先后顺序,为各台站快速排除雷达闪码故障提供了思路,对解决其他天线伺服系统故障也有一定的借鉴意义。The antenna servo system is a key part of CINRAD/SA weather radar,which works continuously and has complex circuits,so it has a relatively high failure rate in CINRAD/SA radar,especially code jumping malfunction.Conclusions are obtained from 68 cases acquired from nationwide CINRAD/SA radar stations by the project team.The code jumping may be caused by the motor,resolver,collector ring,encoder,fiber link,and digital control unit.Combining with the flow direction of antenna angle codes in the servo system and the parameter characteristics of key components,an analysis is made of the factors that lead to jumping codes,and the method to diagnose jumping codes is summarized.In addition,five representative cases are analyzed.According to the statistics of sample fault attribution,some recommendations for the time sequence of component checking in code jumping failure are given,which provides guidance for removing such malfunction quickly and has a beneficial reference for other Servo faults.

关 键 词：大气探测 闪码 故障统计 CINRAD/SA雷达 伺服系统 

分 类 号：TN959.4[电子电信—信号与信息处理]