高海英,朱望纯,高志昊,薛文忠

• 1:桂林电子科技大学教学实践部
• 2:桂林电子科技大学电子工程与自动化学院
• 3:八〇一厂军代室

摘要(Abstract)：

为了提高测控网络的时钟同步精度,在现有IEEE 1588协议的网络时钟基础上,提出基于自回归算法的时钟同步设计。通过建立自回归时钟漂移模型,利用一阶卡尔曼滤波器对主从时钟的时钟偏差和漂移进行估计,根据估计值对时钟进行补偿和修正,并在测控网络失去最高主时钟信号的情况下,预测时钟漂移量以维持主从时钟同步。试验结果表明,该设计能有效降低时间戳获取精度对时钟同步的影响,使同步精度达到10 ns,并提高了系统在离线状态下的同步可靠性。

关键词(KeyWords)： 时钟同步;IEEE 1588协议;自回归;卡尔曼滤波;时钟漂移预测;测控网络

Abstract:

Keywords:

基金项目(Foundation): 广西自然科学基金项目(2013GXNSFAA019332);; 广西自动检测技术与仪器重点实验室基金项目(YQ16111)~~

作者(Author): 高海英,朱望纯,高志昊,薛文忠

DOI: 10.16652/j.issn.1004-373x.2018.13.023

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