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我国目前使用的气象卫星云图接收机有多种型号。其中WT-2和WT-1A型均采用分立元件锁相解调技术。为了使有上述装备台站的同志对锁相解调原理有所了解,便于排除机器的故障,本文将锁相解调的简单原理及调试检修方法作些介绍。
There are many types of meteorological satellite image receivers currently used in our country. Among them, WT-2 and WT-1A use discrete phase-locked demodulation technology. In order to make the comrades with the above equipment stations know about the principle of phase-locked demodulation to facilitate the troubleshooting of the machine, this paper introduces the simple principle of phase-locked demodulation and the debugging and maintenance methods.