Modeling and Synchronization for IEEE 1588 Clock Based on Kalman

摘要：

　　A modeling method and synchronization algorithm based on accelerated motion Kalman model of IEEE 1588 clock is proposed in this paper, against the deterioration from IEEE 1588 slave clock uncertainties.The clock offset calculated by timestamps is regarded as direct input.To strong the input reliability, the clock skew calculated by clock offset is regarded as indirect input.With the estimation of clock offset, clock skew and clock aging rate, the IEEE 1588 clock model could be modified adaptively and both of the clock offset and clock skew could be compensated with different statistical characters of measurement noise.Verified by some meaningful simulations, this algorithm could attenuate the synchronization performance deterioration effect from IEEE 1588 slave clock.The synchronization accuracy is almost double optimized, and the stability and the deterioration inflection point is optimized with almost one order.

关键词： IEEE 1588 Kalman Slave clock uncertainty Time synchronization

作者: Lei Chen Tianlin Zhu Feng Liu Wei Wang

作者单位: Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094, China

会议类型: 国际会议

会议名称: The 27th Conference of Spacecraft TT&C Technology in China(第27届中国飞行器测控学术会议)

会议地点: 广州

会议语种:英文

页码: 609-618

在线出版日期: 2014-11-09（万方平台首次上网日期，不代表论文的发表时间）