CINRAD/SA雷达数字中频改造技术难题及解决方法  

Problems Encountered in IFD Transformation of CINRAD/SA Radar at Jinan and Solutions

作　　者：杨传凤[1] 柴秀梅[2] 张海燕[1] 黄秀韶[1] 涂爱琴 刘朝晖[1] 袁希强 

机构地区：[1]山东省气象台,济南250031 [2]中国气象局气象探测中心,北京100081 [3]山东大气探测技术中心,济南250031 [4]山东气象科技服务中心,济南250031

出　　处：《气象科技》2012年第1期5-8,共4页Meteorological Science and Technology

摘　　要：2008年以来,济南CINRAD/SA雷达由于模拟中频接收机系统性能参数退化导致雷达运行的可靠性和稳定性较差,且故障率较高。为了更好的保障雷达服务于气象,2009年7月济南完成数字化中频升级改造工程,改造后的数字中频雷达相位噪声非常稳定,速度信息量更加可信和精确。扼要介绍了数字中频接收机的工作原理,主要是对数字中频安装调试及改造过程中遇到的软、硬件问题的解决措施和改造后的技术参数测试进行技术性的总结,旨在对同行今后的工作具有参考借鉴价值。Since 2008,the degradation of system performance parameters of analog IF receiver has caused the poor reliability and stability and higher failure rate of the CINRAD/SA radar at Jinan.In order to better ensure the normal operation of the weather radar,the IFD（Digital Intermediate Frequency） upgrade project was completed in July 2009.After transformation,the phase noise of the IFD radar is very stable and the velocity information is more credible and accurate.The working principles of the IFD receiver are introduced,with the emphases on the problems in the software and hardware and their solutions about the installation,debugging and transformation of the IFD devices.In addition,the technical parameter tests after transformation is also summarized,to provide references to radar maintenance staff.

关 键 词：CINRAD/SA天气雷达 数字中频改造 测试 问题解决措施 

分 类 号：TN959.4[电子电信—信号与信息处理]