摘要
简要介绍了SDH网络时间同步技术的国内外发展现状,研究了SDH时间同步信息的传输时延特性,对双向时间同步算法的误差因素进行了分析,提出了SDH时间网管系统的建设要求,明确了时间同步精度的测量方法,并对SDH网络时间同步技术的应用前景进行了展望。
This paper introduces the development of time synchronization technology in SDH network. The characters of SDH network transport delay are researched.The error factors of Two-way time transfer arith- metic are analysed.Therequests of SDH network management system are proposed. The measure methods of time synchronization accuracy are indicated.Finally, the article prospects the application of time synchroniza- tion in SDH network.
出处
《光通信技术》
CSCD
北大核心
2013年第7期14-16,共3页
Optical Communication Technology
关键词
SDH
时间同步
时间传递
SDH
time synchronization
time transfer
