| 基于通信网络的高精度时间传送技术 |
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| 引用本文： | 于佳亮,宋伟,孔德良,程华. 基于通信网络的高精度时间传送技术[J]. 电信工程技术与标准化, 2020, 0(2): 88-92 |
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| 作者姓名： | 于佳亮 宋伟 孔德良 程华 |
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| 作者单位： | 北京航空航天大学,北京航空航天大学,北京酷鲨科技有限公司,中国信息通信研究院 |
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| 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10ns以内,远远高于目前ITU-T和我国通信行业相关标准规定的1100ns指标。
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| 关 键 词： | 时间传递 高精度授时 WPT GNSS |
| 收稿时间： | 2019-11-09 |
| 修稿时间： | 2019-11-15 |
High Precision Time Transmission Technology Based on Communication Network |
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| yujialiang,songwei,kongdeliang and chenghua. High Precision Time Transmission Technology Based on Communication Network[J]. Telecom Engineering Technics and Standardization, 2020, 0(2): 88-92 |
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| Authors: | yujialiang songwei kongdeliang chenghua |
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| Affiliation: | Beijing University of Aeronautics and Astronautics,Beijing University of Aeronautics and Astronautics,beijing kusha,china |
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| Abstract: | This paper introduces a new time transmission method, WPT + CS, which is characterized by the high precision of time signal sources, and based on ordinary communication networks, it can achieve low-cost and high-precision time-frequency signal transmission. The experimental results show that the time signal source of nanosecond level is obtained by using WPP technology. Combined with CS network equipment for time transmission, the synchronization performance of tracking the main end from the end can be guaranteed within 10 nanoseconds. It is much higher than the current ITU-T and China"s communication industry relevant standards stipulated 1100 NS indicators. |
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| Keywords: | time transfer precision timing WPT GNSS |
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