基于分布式仿真系统的时钟同步技术研究
DOI:
CSTR:
作者:
作者单位:

中国航发控制系统研究所

作者简介:

通讯作者:

中图分类号:

基金项目:


Research on Clock Synchronization Technology Based on Distributed Simulation System
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为了推进时钟同步在分布式仿真系统中的实际应用,识别了时钟同步系统的具体要求,在对比多种时钟同步方案后,选择NTP方案并进行优化。在介绍NTP时钟同步的基本原理基础上,进行了时钟同步精度影响因子分析,创造性的提出了构建高精度逻辑时钟、不等式法优化网络回路往返时延的不对称性、时钟晶振频率在线补偿三种优化方法,并建立了时钟同步系统。试验结果表明,设计的时钟同步系统的同步精度优于1ms,且平均校准周期达到5h左右。该时钟同步系统能封装为DLL,可灵活集成到具体项目中。

    Abstract:

    In order to promote the practical application of clock synchronization in distributed simulation system, the specific requirements of clock synchronization system are identified. After comparing various clock synchronization schemes, NTP scheme is selected and optimized. On the basis of introducing the basic principle of NTP clock synchronization, this paper analyzes the influence factors of clock synchronization accuracy, creatively puts forward three optimization methods: constructing high-precision logic clock, optimizing the asymmetry of network loop round-trip delay by inequality method, and on-line compensation of clock crystal frequency, and establishes the clock synchronization system. The experimental results show that the synchronization accuracy of the designed clock synchronization system is better than 1ms, and the average calibration period is about 5h. The clock synchronization system can be encapsulated as a DLL, which can be flexibly integrated into specific projects.

    参考文献
    相似文献
    引证文献
引用本文

黄学进,崔鑫,余婷.基于分布式仿真系统的时钟同步技术研究计算机测量与控制[J].,2021,29(6):212-218.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2021-04-07
  • 最后修改日期:2021-04-13
  • 录用日期:2021-04-14
  • 在线发布日期: 2021-07-07
  • 出版日期:
文章二维码