光纤双向比对时间同步技术研究进展  

Advancement in Time Synchronization Technology Using Bi-Contrast Methods in Optical Fiber

作　　者：陈丁 许江宁[1] 李振中[3] 江山[4] 何泓洋[1] 梁益丰[1] Chen Ding;Xu Jiangning;Li Zhenzhong;Jiang shan;He Hongyang;Liang Yifeng(College of Electrical Engineering,PLA Naval University of Engineering,Wuhan,Hubei 430033,China;College of Electronic Engineering,Jiujiang University,Jiujiang,Jiangxi 332005,China;Chinese People's Liberation Army Troop 92678,Tianjin 300042,China;Admin office,PLA Naval University of Engineering,Wuhan,Hubei 430033,China)

机构地区：[1]中国人民解放军海军工程大学电气工程学院,湖北武汉430033 [2]九江学院电子工程学院,江西九江332005 [3]中国人民解放军92678部队,天津300042 [4]中国人民解放军海军工程大学办公室,湖北武汉430033

出　　处：《激光与光电子学进展》2020年第13期49-57,共9页Laser & Optoelectronics Progress

基　　金：国家第二代卫星导航重大专项(GFZX0301040303);国家重点研发计划(2016YFB0501700,2016YFB0501701);国家自然科学基金(41804076)。

摘　　要：基于光纤传输的时间同步技术具有高精度、高稳定度和低损耗等优点,已成为高精度时间同步的主要方法,具有较强的应用需求和发展前景。双向比对技术中,光纤时间同步方法应用广泛,国内外相关机构在此领域不断提出新方法、新技术和新应用。在梳理光纤双向比对技术研究历史和进展的基础上,介绍了4种主流双向比对方案的基本原理和技术特点,并分析同步系统的不确定性和误差来源及其对时间同步结果的影响。为进一步提高光纤时间同步精度,建立更高精度、安全稳定的地基授时体系提供参考。Time synchronization technology based on optical fiber transmission has the advantages of high precision,high stability,and low loss.It has become the main method for high-precision time synchronization,with robust application requirements and development prospects.Bidirectional comparison technology is a widely used optical fiber time synchronization method,and relevant institutions(locally and internationally)continue to propose new methods,technologies,and applications in this field.Furthermore,by combining the research history and progress of optical fiber bidirectional alignment technologies,this paper introduces the basic principles and technical characteristics of four mainstream bidirectional comparison schemes.The uncertainties and sources of errors of the synchronization system and their impact on time synchronization results are analyzed.Accordingly,this study provides a reference to further improve the accuracy of optical fiber time synchronization and establish a high-precision,safe,and stable ground-based timing system.

关 键 词：光纤光学 光纤时间同步 时间传递 双向比对 波分复用 时分复用 

分 类 号：TN929.11[电子电信—通信与信息系统]