CINRAD/SA雷达发射机驱动级工作原理及检修技术探讨

新一代多普勒天气雷达CINRAD/SA发射机放大链驱动级是发射机中的关键部件,占有很重要的地位,其技术指标基本决定了发射机的输出高频脉冲宽度及频谱,直接影响雷达系统的质量。详细讨论了发射机放大链驱动级的硬件组成及工作原理,并对其相关线路作了进一步分析,介绍了正确的调试方法,给出了几个关键点波形及相关时序,根据台站工作的实际经验,结合相关报警信息,探讨了基本维修思路,总结了一些快速有效的检修方法,希望能为新一代多普勒天气雷达技术保障提供有益的借鉴。

Principles and Maintenance of CINRAD/SA Radar Transmitter Drivers

The transmitter driver is a very important part of CINRAD/SA and SB Radar.Its technical parameters not only determine the basical output RF pulse and spectrum of the transmitter,but also influence directly the operating quality of the radar system.The operating principles of the CINRAD/SA and SB Radar transmitter driver are discussed in details,and a thorough hardware analysis is made of the working diagram of the driver,which comprised 3A4 and 3A5.Also some useful adjustment methods and a number of key-point waveforms,as well as the related timing sequence,are introduced.According to the radar system maintenance experiences,some basic electronic troubleshooting thoughts and quick maintenance methods are discussed and summarized,in combination with the relevant alarm massages.