摘要
时钟漂移与传输延时的不确定性是分布式系统时钟同步中不容忽视的问题,它直接影响同步精度。分析了IEEE 1588精确时钟同步协议的同步机制,设计了从时钟的硬件结构,提出了结合数据滤波和锁相环PI调节的高精度时钟同步算法。
Clock drift and undetermined delay of transmission are the serious problems in the distributed system, which will deteriorate the precision of clock synchronization. To improve the precision, this paper analyzes the mechanism of synchronization and designs the hardware structure of the slave clock node about IEEE 1588 precise clock synchronization protocol, proposes the precise clock synchronization algorithm, which combined data filter and PI control based on PLL.
出处
《电子技术应用》
北大核心
2010年第7期94-97,108,共5页
Application of Electronic Technique
