基于BDS用户终端的局域网授时方法  

The method of local area network timing based on BDS user terminal

作　　者：李正文 张海涛 白文礼 LI Zhengwen;ZHANG Haitao;BAI Wenli(Troops 61206,Beijing 100042,China;Troops 32022,Wuhan 430000,China)

机构地区：[1]61206部队,北京100042 [2]32022部队,湖北武汉430000

出　　处：《全球定位系统》2020年第3期33-36,共4页Gnss World of China

摘　　要：针对局域网时间授时应用需求,设计了一种基于北斗卫星导航系统(BDS)用户终端的局域网授时方案.通过软件研制,将用户终端的UTC时间导入到局域网计算机,作为局域网参考时间源,再利用网络授时软件进行网络授时,实现局域网UTC时间统一.试验结果表明,基于BDS用户终端的UTC时间引接精度可达200 ms,网络授时精度优于500 ms.Based on application requirements of Local Area Network(LAN)timing,a scheme is designed based on BeiDou Navigation Satellite System(BDS)user terminal.With developed software,the UTC time is imported from the user terminal to LAN as a local reference time source.Then the UTC time of local equipment are unified by a LAN timing software.The test results show that the UTC timing accuracy can reach 200 ms,and the network timing accuracy is better than 500 ms.

关 键 词：北斗卫星导航系统 UTC时间 网络授时 BDS用户终端 

分 类 号：P228.4[天文地球—大地测量学与测量工程]