| 基于全双工以太帧间隔的源同步时钟传输方法 |
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| 引用本文： | 陈健,张俊杰,宋英雄.基于全双工以太帧间隔的源同步时钟传输方法[J].上海大学学报(自然科学版),2011,17(1):44-50. |
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| 作者姓名： | 陈健 张俊杰 宋英雄 |
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| 作者单位： | 上海大学,特种光纤与光接入网省部共建重点实验室,上海,200072 |
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| 基金项目： | 上海市重点学科建设资助项目（S30108）；上海市重点实验室资助项目（08DZ223100）；上海市科委基金资助项目（08706201000） |
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| 摘 要： | 提出在全双工以太物理层中，基于以太帧间隔（inter packet gap, IPG）的固定比特率业务同步时钟传输方法.该方法引入同步剩余时戳(synchronous residual time stamp, SRTS)算法，是一种不受以太分组流量影响的带外时钟传输方法.通过连分数展开分析恢复时钟的各阶抖动成分，给出基于以太帧间隔的同步剩余时戳算法的参数选择方法，并通过软件仿真和现场可编程门阵列(field programmable gate array, FPGA)硬件实验证明了其优良的同步性能.
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| 关 键 词： | 帧间隔 同步剩余时戳 源时钟同步 |
| 收稿时间： | 2010-04-06 |
Source Synchronized Clock Transmission Based on Inter-Packet Gap of Full-Duplex Ethernet |
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| CHEN Jian,ZHANG Jun-jie,SONG Ying-xiong.Source Synchronized Clock Transmission Based on Inter-Packet Gap of Full-Duplex Ethernet[J].Journal of Shanghai University(Natural Science),2011,17(1):44-50. |
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| Authors: | CHEN Jian ZHANG Jun-jie SONG Ying-xiong |
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| Institution: | CHEN Jian,ZHANG Jun-jie,SONG Ying-xiong(Key Laboratory of Specialty Fiber Optics and Optical Access Network,Shanghai University,Shanghai 200072,China) |
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| Abstract: | A source synchronized clock transmission method is proposed based on inter-packet gap(IPG) of Ethernet running in a full-duplex mode.A synchronous residual time stamp(SRTS) is adopted as the clock transmission algorithm.The characteristic of the new method is immune to fluctuation for in-band Ethernet traffic.Parameters of the SRTS algorithm used in Ethernet IPG and the output jitter waveform of recovered clock are determined by using continued fraction.Simulation results and field programmable gate array(F... |
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| Keywords: | inter-packet gap(IPG) synchronous residual time stamp(SRTS) source clock synchronization |
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