E1 over EPON的时钟同步技术  

Clock synchronization of E1 over EPON

作　　者：郭巍[1] 陈雪[2] 邓羽[1] 盖鹏飞[1] 

机构地区：[1]北京格林威尔科技发展有限公司,北京100085 [2]北京邮电大学,北京100876

出　　处：《光通信研究》2006年第2期10-12,54,共4页Study on Optical Communications

基　　金：国家"八六三计划"资助项目(2001AA122021;2004AA122320)

摘　　要：文章介绍了E1 over基于以太网的无源光网络(EPON)的关键技术中时钟同步的实现方法,通过对自适应法的研究和改进,优化了时钟输出抖动的指标,有效地保障了EPON系统的服务质量(QoS)指标。相对于时间标签法,自适应法在分组网络中进行时钟同步方面具有更广泛的适用空间。The present study mainly focuses on the realization of clock synchronization, a key technology of E1 over EPON. With an indepth study of the adaptive method, this article has expounded on an improved way, in which the markers of clock output jitter have been optimized and the QoS of the EPON system effectively ensured. Compared with the time stamp method, the proposed adaptive method for clock synchronization is far more extensively applicable in packet networks.

关 键 词：基于以太网的无源光网络 时钟恢复 锁相环 数字锁相环 

分 类 号：TN915[电子电信—通信与信息系统]