一次典型CINRAD/SA接收机动态范围异常分析与处理  

A Typical Dynamic Range Abnormal Event of CINRAD/Sal Receiver

作　　者：杨苏勤[1,2] 汤达昌[1] 谢启杰 温继昌 

机构地区：[1]南京信息工程大学大气科学学院,南京210044 [2]福建省泉州市气象局,泉州362000

出　　处：《气象科技》2013年第5期970-973,共4页Meteorological Science and Technology

基　　金：中国气象局公益性行业(气象)科研专项(GYHY200906040)"新一代天气雷达测试与故障检测技术研究"资助

摘　　要：从一次典型的CINRAD/SA雷达数字化接收机动态范围异常故障入手,分析了影响接收机动态范围和动态极限性能扩展的主要因素,重点对动态异常进行了翔实分析。通过分步、分模块的动态范围调整与故障排查等一系列过程,详细诊断了导致接收机动态范围异常的故障原因,并迅速、准确的定位了故障单元,为数字中频接收机故障维修提供方法与借鉴。A typical dynamic range abnormal event of the CINRAD / SA radar digitized receiver is described and the main influencing factors on receiver dynamic range and the expansion of dynamic performance limitations are analyzed, focusing on the dynamic range abnormalities. Through the step-by-step sub- module troubleshooting, the causes of the malfunction of the receiver dynamic range abnormality are diagnosed in detail, and the rapid and accurate positioning procedure of the faulty is discussed to provide references for the troubleshooting of radar digital receiver dynamic range abnormalities.

关 键 词：新一代天气雷达 数字接收机 动态范围恶化 故障排查 中频放大器 

分 类 号：TN957.5[电子电信—信号与信息处理]