一种增强型PTP光纤级联精细时频同步方法

戴群雄; 郝青茹; 王铮; 左兆辉; 王士楠

doi:10.11999/JEIT191057

一种增强型PTP光纤级联精细时频同步方法

doi: 10.11999/JEIT191057

戴群雄^{1, 2, ,},
郝青茹^{1, 2},
王铮^{1, 2},
左兆辉^{1, 2},
王士楠³

1.
中国电子科技集团公司第五十四研究所石家庄 050081
2.
卫星导航系统与装备技术国家重点实验室石家庄 050081
3.
深圳市远东华强导航定位有限公司深圳 518000

基金项目: 国家自然科学基金(91638203)，国家重点研发计划(2016YFB0502102)

详细信息

作者简介:
戴群雄：男，1983年生，高级工程师，研究方向为卫星导航、时间频率

郝青茹：男，1966年生，研究员，研究方向为卫星导航、时间频率

王铮：男，1988年生，高级工程师，研究方向为卫星导航、时频频率

左兆辉：男，1986年生，高级工程师，研究方向为卫星导航、时间频率

王士楠：男，1987年生，工程师，研究方向为时间频率

通讯作者:
戴群雄　daiqunxiong@126.com

中图分类号: TN921
计量
- 文章访问数: 960
- HTML全文浏览量: 366
- PDF下载量: 39
- 被引次数: 0
出版历程
- 收稿日期: 2019-12-31
- 修回日期: 2020-10-26
- 网络出版日期: 2020-12-11
- 刊出日期: 2021-05-18

An Enhanced Method of PTP Fiber Cascade Fine Time-frequency Synchronization

Qunxiong DAI^{1, 2
, ,},
Qingru HAO^{1, 2},
Zheng WANG^{1, 2},
Zhaohui ZUO^{1, 2},
Shinan WANG³

1.
The 54th Research Institute of CETC, Shijiazhuang 050081, China
2.
State Key Laboratory of Satellite Navigation System and Equipment Technology, Shijiazhuang 050081, China
3.
Fareast Huaqiang Navigation & Position Co., LTD., Shenzhen 518000, China

Funds: The National Natural Science Foundation of China (91638203), The National Key Research and Development Program (2016YFB0502102)

摘要

摘要: 该文提出了一种增强型PTP光纤级联精细时频同步方法，该方法以PTP同步技术为基础，结合同步以太网时钟传递技术和基于数字双混频时差法的多级级联精细时钟同步技术，对PTP技术进行改进和增强，然后基于该方法，通过多级时频设备光纤级联的形式实现多节点、大跨度、网络化的时频信号传递与同步输出，并解决多级级联情况下同步精度会逐级恶化的问题，实现ns量级的系统时间同步精度，保证系统各环节在高度统一的时间尺度下进行高效同步与联动工作。通过设计、试验，验证了该方法的可行性和有效性。
- 时频同步 /
- PTP光纤级联 /
- 增强型 /
- 同步以太网时钟传递 /
- 数字双混频时差法
Abstract: In this paper, an enhanced method of PTP fiber cascade fine time-frequency synchronization is proposed. Based on the PTP synchronization technology, combined with the synchronous Ethernet clock transfer technology and the multi-level cascade fine clock synchronization technology based on the digital double mixing time difference method, the PTP technology is improved and enhanced. Then, based on this method, the multi-level time-frequency equipment fiber cascade is used to realize the multi node, large-span and networked time-frequency signal transmission and synchronous output can solve the problem that the synchronization accuracy deteriorates step by step under the condition of multi-level cascade, realizing the ns level system time synchronization accuracy, and ensuring the efficient synchronization and linkage of all parts of the system under the highly unified time scale. The feasibility and effectiveness of the method are verified by design and test.
- Time-frequency synchronization /
- PTP fiber cascade /
- Enhanced method /
- Synchronous Ethernet clock transfer /
- Digital double mixing time difference method

HTML全文

图 1 PTP同步原理框图

下载: 全尺寸图片幻灯片

图 2 同步以太网时钟传递示意图

下载: 全尺寸图片幻灯片

图 3 级联精细时钟同步工作原理示意图

下载: 全尺寸图片幻灯片

图 4 试验验证测试连接图

下载: 全尺寸图片幻灯片

图 5 试验验证同步误差测试结果(原始时差记录数据)

下载: 全尺寸图片幻灯片

表 1 同步误差(ns)

	标准差	最大时间间隔误差(峰峰值)	最小值	最大值
第2级设备	0.3573	1.454	–0.667	0.787
第3级设备	0.4158	1.769	–0.956	0.813
第4级设备	0.2931	2.136	–0.336	1.8
第5级设备	0.4076	2.328	–0.886	1.442

下载: 导出CSV

参考文献(23)

[1]	索晓楠, 雷鸣, 陈俊彪. 网络化靶场综合模拟试验网时间统一系统研究[J]. 电子设计工程, 2011, 19(19): 99–101, 106. doi: 10.3969/j.issn.1674-6236.2011.19.039 SUO Xiaonan, LEI Ming, and CHEN Junbiao. Time unified system research in comprehensive simulation test network of network range[J]. Electronic Design Engineering, 2011, 19(19): 99–101, 106. doi: 10.3969/j.issn.1674-6236.2011.19.039
[2]	谢春胜. 系统间实时同步问题的研究[J]. 电子对抗技术, 2002, 17(6): 32–35, 43. doi: 10.3969/j.issn.1674-2230.2002.06.008 XIE Chunsheng. A research into real-time synchronization among systems[J]. Electronic Warfare Technology, 2002, 17(6): 32–35, 43. doi: 10.3969/j.issn.1674-2230.2002.06.008
[3]	刘琴, 陈炜, 徐丹, 等. 采用级联方式在230 km光纤链路中同时实现频率传递和时间同步[J]. 中国激光, 2016, 43(3): 0305006-1–0305006-7. doi: 10.3788/CJL201643.0305006 LIU Qin, CHEN Wei, XU Dan, et al. Simultaneous frequency transfer and time synchronization over a cascaded fiber link of 230 km[J]. Chinese Journal of Lasers, 2016, 43(3): 0305006-1–0305006-7. doi: 10.3788/CJL201643.0305006
[4]	赵晓宇, 卢麟, 吴传信, 等. 基于光纤环形网的多点高精度时频传递方法[J]. 光学学报, 2019, 39(6): 0606002-1–0606002-7. doi: 10.3788/AOS201939.0606002 ZHAO Xiaoyu, LU Lin, WU Chuanxin, et al. Ring fiber network based multipoint time-frequency dissemination method with high precision[J]. Acta Optica Sinica, 2019, 39(6): 0606002-1–0606002-7. doi: 10.3788/AOS201939.0606002
[5]	龙波, 王菊凤, 黄徐瑞晗, 等. 基于NIMDO及光纤传递的高精度时间同步系统研究[J]. 计量学报, 2019, 40(5): 904–909. doi: 10.3969/j.issn.1000-1158.2019.05.27 LONG Bo, WANG Jufeng, HUANG-XU Ruihan, et al. Study of high precision time synchronization system based on NIMDO and optical fiber transfer[J]. Acta Metrologica Sinica, 2019, 40(5): 904–909. doi: 10.3969/j.issn.1000-1158.2019.05.27
[6]	ZHU Xi, WANG Bo, GUO Yichen, et al. Robust fiber-based frequency synchronization system immune to strong temperature fluctuation[J]. Chinese Optics Letters, 2018, 16(1): 010605-1–010605-5. doi: 10.3788/COL201816.010605
[7]	KREHLIK P, SLIWCZYNSKI L, BUCZEK L, et al. Multipoint dissemination of RF frequency in fiber optic link with stabilized propagation delay[J]. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2013, 60(9): 1804–1810. doi: 10.1109/TUFFC.2013.2766
[8]	丁广, 邵健, 张建飞, 等. 高精度网络对时技术及其应用[J]. 数字通信世界, 2013(1): 67–70. doi: 10.3969/j.issn.1672-7274.2013.01.016 DING Guang, SHAO Jian, ZHANG Jianfei, et al. High precision network timing technology and its application[J]. Digital Communication World, 2013(1): 67–70. doi: 10.3969/j.issn.1672-7274.2013.01.016
[9]	马昭, 葛文双, 胡爱兰, 等. 基于PTP授时的高可靠时间统一系统的应用研究[J]. 电子技术应用, 2019, 45(5): 38–42. doi: 10.16157/j.issn.0258-7998.190161 MA Zhao, GE Wenshuang, HU Ailan, et al. Application research of high reliability time unified system based on PTP strategy[J]. Application of Electronic Technique, 2019, 45(5): 38–42. doi: 10.16157/j.issn.0258-7998.190161
[10]	刘潇, 李长俊. 基于IEEE1588网络时间同步系统的研究[J]. 仪器仪表用户, 2018, 25(9): 9–11. doi: 10.3969/j.issn.1671-1041.2018.09.003 LIU Xiao and LI Changjun. Research on time synchronization system based on IEEE1588 network[J]. Instrumentation Customer, 2018, 25(9): 9–11. doi: 10.3969/j.issn.1671-1041.2018.09.003
[11]	朱炎平, 陆俊, 徐志强, 等. 智能变电站IEEE 1588同步时延优化方法[J]. 电力系统自动化, 2018, 42(12): 148–153. doi: 10.7500/AEPS20170512010 ZHU Yanping, LU Jun, XU Zhiqiang, et al. Optimization method of IEEE 1588 synchronization time delay for smart substation[J]. Automation of Electric Power Systems, 2018, 42(12): 148–153. doi: 10.7500/AEPS20170512010
[12]	晁大海, 范业明. 基于DP83640同步以太网模式的深海探测系统[J]. 舰船电子工程, 2019, 39(4): 131–133, 142. doi: 10.3969/j.issn.1672-9730.2019.04.029 CHAO Dahai and FAN Yeming. Deep sea exploration system based on DP83640 synchronous Ethernet mode[J]. Ship Electronic Engineering, 2019, 39(4): 131–133, 142. doi: 10.3969/j.issn.1672-9730.2019.04.029
[13]	湛伟. 高速Serdes技术的发展趋势和挑战[J]. 电子产品世界, 2019, 26(9): 48–53. doi: 10.3969/j.issn.1005-5517.2019.09.011 ZHAN Wei. Development trend and challenge of high speed Serdes technology[J]. Electronic Engineering &Product World, 2019, 26(9): 48–53. doi: 10.3969/j.issn.1005-5517.2019.09.011
[14]	李培基, 李卫, 朱祥维, 等. 网络时间同步协议综述[J]. 计算机工程与应用, 2019, 55(3): 30–38. doi: 10.3778/j.issn.1002-8331.1809-0008 LI Peiji, LI Wei, ZHU Xiangwei, et al. Overview of network time synchronization protocol[J]. Computer Engineering and Applications, 2019, 55(3): 30–38. doi: 10.3778/j.issn.1002-8331.1809-0008
[15]	张越, 王玉琢, 张爱敏, 等. 基于多路双混频时差测量仪的新频率测量系统[J]. 计量学报, 2018, 39(4): 568–571. doi: 10.3969/j.issn.1000-1158.2018.04.25 ZHANG Yue, WANG Yuzhuo, ZHANG Aimin, et al. Research on system of new frequency measurement based on multi-channel dual mixer time difference measurement instrument[J]. Acta Metrologica Sinica, 2018, 39(4): 568–571. doi: 10.3969/j.issn.1000-1158.2018.04.25
[16]	徐超, 刘军良, 胡永辉. 双混频时差测量系统的误差分析与试验研究[J]. 时间频率学报, 2018, 41(3): 206–213. doi: 10.13875/j.issn.1674-0637.2018-03-0206-08 XU Chao, LIU Junliang, and HU Yonghui. Error analysis and experiment of dual mixer time difference measurement system[J]. Journal of Time and Frequency, 2018, 41(3): 206–213. doi: 10.13875/j.issn.1674-0637.2018-03-0206-08
[17]	许龙飞, 罗丹, 周渭, 等. 一种全面响应时间的频率稳定度测量[J]. 西安电子科技大学学报: 自然科学版, 2018, 45(1): 72–75, 122. doi: 10.3969/j.issn.1001-2400.2018.01.013 XU Longfei, LUO Dan, ZHOU Wei, et al. Method of a comprehensive response time of frequency stability[J]. Journal of Xidian University, 2018, 45(1): 72–75, 122. doi: 10.3969/j.issn.1001-2400.2018.01.013
[18]	何力睿, 章巍, 熊嘉明, 等. 保持模式下恒温晶振频率补偿方法[J]. 导航定位与授时, 2019, 6(1): 87–91. HE Lirui, ZHANG Wei, XIONG Jiaming, et al. A frequency compensation Method of OCXO in hold mode[J]. Navigation Positioning and Timing, 2019, 6(1): 87–91.
[19]	邹昕洋, 张友鹏. 基于PTP协议的铁路时间同步网络同步技术研究[J]. 铁道标准设计, 2019, 63(5): 133–137. doi: 10.13238/j.issn.1004-2954.201807260003 ZOU Xinyang and ZHANG Youpeng. Research on synchronization technology of railway time synchronization network based on PTP protocol[J]. Railway Standard Design, 2019, 63(5): 133–137. doi: 10.13238/j.issn.1004-2954.201807260003
[20]	苗苗, 周渭, 李智奇, 等. 用于时间同步的高精度短时间间隔测量方法[J]. 北京邮电大学学报, 2012, 35(4): 77–80. doi: 10.3969/j.issn.1007-5321.2012.04.018 MIAO Miao, ZHOU Wei, LI Zhiqi, et al. Application research of high-precision time interval measurement on time synchronization[J]. Journal of Beijing University of Posts and Telecommunications, 2012, 35(4): 77–80. doi: 10.3969/j.issn.1007-5321.2012.04.018
[21]	金虎, 王玉松. 舰艇协同防空时间同步误差对目标定位的影响[J]. 舰船电子工程, 2019, 39(9): 45–47, 104. doi: 10.3969/j.issn.1672-9730.2019.09.011 JIN Hu and WANG Yusong. Analysis on the influence of time synchronization error on target location under multi-platform synergistic air defense mode of surface ship[J]. Ship Electronic Engineering, 2019, 39(9): 45–47, 104. doi: 10.3969/j.issn.1672-9730.2019.09.011
[22]	张安旭, 孙亨利, 戴一堂, 等. 光纤时频传输及其在航天探测中的应用[J]. 无线电工程, 2016, 46(9): 15–19, 23. doi: 10.3969/j.issn.1003-3106.2016.09.04 ZHANG Anxu, SUN Hengli, DAI Yitang, et al. Time and frequency transmission over optical fiber and its applications in aerospace measurement[J]. Radio Engineering, 2016, 46(9): 15–19, 23. doi: 10.3969/j.issn.1003-3106.2016.09.04
[23]	戎强, 王铮, 韩华. 一种用于网络同步的授时时统设计与实现[J]. 计算机与网络, 2014, 40(14): 55–58. doi: 10.3969/j.issn.1008-1739.2014.14.052 RONG Qiang, WANG Zheng, and HAN Hua. Design and implementation on a timing and time uniform system applied in network synchronization[J]. Computer &Network, 2014, 40(14): 55–58. doi: 10.3969/j.issn.1008-1739.2014.14.052