第11卷第1期导航定位学报Vol.11,No.12023年2月JournalofNavigationandPositioningFeb.,2023引文格式:徐荣,赵金峰,田湘,等.北斗高精度时间同步技术方案[J].导航定位学报,2023,11(1):154-158.(XURong,ZHAOJinfeng,TIANXiang,etal.SchemeofBeiDouhigh-precisiontimesynchronizationtechnology[J].JournalofNavigationandPositioning,2023,11(1):154-158.)DOI:10.16547/j.cnki.10-1096.20230123.北斗高精度时间同步技术方案徐荣1,赵金峰2,田湘1,戴卫恒1,李永强1,吕晶1(1.陆军工程大学通信工程学院,南京210007;2.61905部队,沈阳110000)摘要:为了进一步提高北斗卫星导航系统(BDS)时间同步设备的授时和守时精度,提出一种高精度时间同步技术方案:由于秒脉冲驯服时钟方案存在输出秒脉冲短稳差,驯服周期长等缺点,可以利用微型铷钟频率稳定度高的优点,基于载波测量时钟变化率来进行时间同步;既能解决输出秒脉冲短期抖动大的问题,又可以快速驯服并保持守时长期精度。实验结果表明,长期授时精度可达到10ns,可以满足第五代移动通信技术(5G)通信的最高时间同步需求。关键词:微型铷钟;时间同步;北斗卫星导航系统(BDS)授时;守时中图分类号:P228文献标志码:A文章编号:2095-4999(2023)01-0154-05SchemeofBeiDouhigh-precisiontimesynchronizationtechnologyXURong1,ZHAOJinfeng2,TIANXiang1,DAIWeiheng1,LIYongqiang1,LYUJing1(1.InstituteofCommunicationEngineering,ArmyEngineeringUniversity,Nanjing210007,China;2.Troops61905,Shenyang110000,China)Abstract:BeiDounavigationsatellitesystem(BDS)timingservicehasbeenwidelyusedinpowergrid,mobilecommunicationandotherindustriesduetoitsglobalcoverage,all-weather,andhigh-precisionadvantages.However,withtheemergenceofnewtechnologiessuchasthefifth-generation(5G)communications,higherprecisiontimingandpunctualityrequirementsareputforwardfortimesynchronizationequipment.Fortheonepulsepersecondpulsedisciplingclockscheme,theoutputsecondpulsestabilityispoor,andthedisciplingcycleislong,atimesynchronizationtechnicalschemebasedonthecarrierwavetomeasuretheclockchangerateisproposedbyusingthemicrorubidiumclockwiththeadvantagesofhighfrequencystability.whichnotonlysolvestheproblemofoutputtheproblemofshort-termjitterofthese...