以太网传输中CBR业务时钟恢复的技术研究  

Study on the Clock Recovery Technology of CBR Services Carried Through Ethernet

作　　者：牛增新[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《计算机与网络》2008年第15期65-67,共3页Computer & Network

摘　　要：首先概述电路数据时钟信息在通过以太网传输时遇到的问题。针对常用的基于 VCO 的时钟恢复、基于 DDS 的时钟恢复等几种时钟恢复方式,提出了改进的 DDS 方式和小数分频技术进行时钟恢复的原理并详细描述该方式下的实现方法。在实际应用中,通过测试,满足实际需要。First, the problems met when carrying the circuit data clock information through Ethemet are stmmarized. To the commonly used VCO based and DDS based clock recovery means, the improved DDS means and decimal fraction frequency division technology are put forward. The principle and implementation of this means are described in detail. It has been put into practically use and tested to be able to meet practical requirements.

关 键 词：以太网 电路数据 时钟恢复 DDS CBR 业务 VCO 

分 类 号：TN915[电子电信—通信与信息系统]