于佳亮, 宋伟, 孔德良, et al. High precision time transmission technology based on communication network[J]. 2020, 33(2): 88-92. DOI: 10.13992/j.cnki.tetas.2020.02.021.
High precision time transmission technology based on communication network
摘要
本文介绍了一种新型的时间传送方式
其特点是时间信号源精度高
基于普通通信网络
可以实现低成本高精度的时频信号传送。经实测表明
由于采用了广域精确授时(WPT)技术获得了纳秒级的时间信号源
结合高精度网络时间传送技术(CS)
从端跟踪主端的同步性能可以保证10 ns以内
远远高于目前ITU-T和我国通信行业相关标准规定的1 100 ns指标。
Abstract
This paper introduces a new type of time transmission method WPT+CS
which is characterized by high precision of time signal source and based on common communication network
which can realize low-cost and high-precision time-frequency signal transmission. The measured results show that the nanosecond-level time signal source is obtained by using the wide-area precise timing WPT technology. Combined with the CS network equipment for time transmission
the synchronization performance of the slave-side tracking master can be guaranteed within 10 nanoseconds. It is much higher than the current 1 100 ns target specified by ITU-T and China’s communications industry standards.