基于推后补偿的时钟同步算法研究  

A Study of Clock Synchronization Algorithms Based on Postponed Compensation

作　　者：王波[1] 吕俊伟[1] 于振涛[1] 

机构地区：[1]海军航空工程学院控制工程系,烟台264001

出　　处：《微计算机应用》2011年第1期10-14,共5页Microcomputer Applications

摘　　要：时钟同步精度是网络时间同步的重要指标。目前网络节点的增多及涉及行业领域的扩大,给时钟同步精度提出了更高的要求,因此需要研究新的时钟同步算法提高时钟同步精度。本文以网络时钟同步的单向比较法为研究对象,针对其在时钟同步精度上的不足,提出了一种新的时钟同步算法,并给出了此算法在PPS信号同步中的应用,实验结果表明所提出的时钟同步算法提高了PPS信号的传递精度。该算法简单明了,易于工程实现。The clock synchronization precision is an important indicator of time synchronization of network. Currently the increase of network nodes and the expansion of involved industries bring about higher requirements for the ＂precision of clock synchronization, so it is necessary to study the new clock synchronization algorithm for improving the accuracy of clock synchronization. Based on the research of one - way comparison clock synchronization, this paper presented a new clock synchronization algorithm by overcoming its shortcom- ings of synchronization precision. And this method was applied to the second pulse signal synchronization. The experiment results show that the proposed synchronization algorithm improves the transmission precision of the PPS, and the algorithm is simple, easy to be realized.

关 键 词：时钟同步 单向比较法 推后补偿 PPS 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TN929.5[自动化与计算机技术—控制科学与工程]