[李泽文; 舒磊; 邓丰; Zeng, Xiangjun; 邓拓夫] Hunan Province Key Laboratory of Smart Grids Operation and Control, Changsha University of Science and Technology, Changsha
410114, China
[李泽文; 舒磊; 邓丰; Zeng, Xiangjun; 邓拓夫] 410114, China
语种：
中文
关键词：
卫星时钟;数字锁相环;晶振;同步时钟;电力系统;通信;同步;误差
关键词(英文)：
Communication;Crystal;DPLL;Electric power systems;Errors;Satellite clock;Synchronization;Synchronous clock
(51207013,51377012):国家自然科学基金资助项目
(2012FJ1003):湖南省重大专项项目
(2015JJ1001):湖南省自然科学***基金资助项目
(14A002):湖南省教育厅重点项目
(13CY008):湖南省高校科技成果产业化培育项目
:Project supported by the National Natural Science Foundation of China(51207013,51377012),the Major Projects in Hunan Province (2012FJ1003),the Hunan Province Natural Science Fund for Distinguished Young Scholars (2015JJ1001),the Education Department of Hunan Province Key Project(14A002),the Indust
An implementation method of synchronous clock with high precision based on wholly DPLL (Digital Phase-Locked Loop) is proposed, which is based on the complementation between satellite clock and crystal clock: when the satellite clock works properly, the crystal clock follows the "second" pulse phase fluctuation of satellite clock by the wholly DPLL to eliminate the accumulated error of crystal clock in real time;when the satellite clock works improperly, the historic frequency-division data are used to identify and optimize the frequency-divisi...
