北斗卫星导航系统实时定轨及SSR改正信息生成方法
|
摘要
随着GNSS应用的不断发展,实时位置服务已经成为国内外研究热点,而北斗卫星导航系统的实时服务尚处于发展阶段。本文基于卫星精密定轨基本原理,讨论了北斗导航卫星实时轨道确定策略;研究了基于北斗卫星质心和天线相位中心的SSR轨道改正值生成方法,并给出了一种适合北斗导航卫星的IODE值表达方式;基于国家基准站和全球MGEX站数据,进行了北斗导航卫星的实时轨道解算测试,结果表明,GEO卫星1D RMS精度优于400 cm,平均精度为223 cm,其径向精度优于20 cm;IGSO卫星精度优于30 cm,平均精度为22 cm,其径向精度优于10 cm;MEO卫星精度优于30 cm,平均精度为15 cm,其径向精度优于10 cm。
With the continuous development of GNSS applications,real-time location service has become a hot research at home and abroad,but the real-time service of Bei Dou navigation satellite system is still at the stage of development.Firstly,based on the basic principle of satellites precision orbit determination,this paper discusses the real-time orbit determination strategy of Bei Dou navigation satellite.Secondly,the method of generating SSR orbit correction based on satellite center of mass and antenna phase is studied,and a way to express the IODE value for Bei Dou navigation satellite is proposed.Finally,the data from the national and MGEX stations are processed to determine BDS satellite real-time orbit.The results show that,1D RMS accuracy of GEO satellite is better than 400 cm,the average accuracy is 223 cm,the radial accuracy is better than 20 cm; IGSO satellite accuracy is better than 30 cm,the average accuracy is 22 cm,the radial accuracy is better than 10 cm; MEO satellite accuracy is better than 30 cm,the average accuracy is 15 cm,the radial accuracy is better than 10 cm.
With the continuous development of GNSS applications,real-time location service has become a hot research at home and abroad,but the real-time service of Bei Dou navigation satellite system is still at the stage of development.Firstly,based on the basic principle of satellites precision orbit determination,this paper discusses the real-time orbit determination strategy of Bei Dou navigation satellite.Secondly,the method of generating SSR orbit correction based on satellite center of mass and antenna phase is studied,and a way to express the IODE value for Bei Dou navigation satellite is proposed.Finally,the data from the national and MGEX stations are processed to determine BDS satellite real-time orbit.The results show that,1D RMS accuracy of GEO satellite is better than 400 cm,the average accuracy is 223 cm,the radial accuracy is better than 20 cm; IGSO satellite accuracy is better than 30 cm,the average accuracy is 22 cm,the radial accuracy is better than 10 cm; MEO satellite accuracy is better than 30 cm,the average accuracy is 15 cm,the radial accuracy is better than 10 cm.
引文
[1]杨元喜.北斗卫星导航系统的进展、贡献与挑战[J].测绘学报,2010,39(1):1-6.
[2]SHI C,ZHAO Q L,LI M,et al.Precise Orbit Determination of Beidou Satellites with Precise Positioning[J].Science China(Earth Sciences),2012,55(7):1079-1086.
[3]罗璠,李建文,黄海,等.BDS广播星历的轨道误差分析[J].测绘通报,2015(2):70-72.
[4]楼益栋,施闯,葛茂荣,等.GPS卫星实时精密定轨及初步结果分析[J].武汉大学学报(信息科学版),2008,33(8):815-841.
[5]刘志强,王解先.广播星历SSR改正的实时精密单点定位及精度分析[J].测绘科学,2014,39(1):15-19.
[6]ORPEN O,MELGAARD T.Experiences with Fugro’s Real Time GPS/GLONASS Orbit/Clock Decimeter Level Precise Positioning System[C]∥Dynamic Positioning Conference.Houston:Sensors,2009.
[7]GLOCKER M,LANDAU H,LEANDRO R,et at.Global Precise Multi-GNSS Positioning with Trimble Centerpoint RTX[C]∥Satellite Navigation Technologies&European Workshop on GNSS Signals&Signal Processing.Noordwijk:IEEE,2012:1-8.
[8]ZHANG Q,MOORE P,HANLEY J,et at.Auto-BAHN:Software for Near Real-time GPS Orbit and Clock Computations[J].Advances in Space Research,2007,39(10):1531-1538.
[9]WEISS J P,BARSEVER Y,BERTIGER W.Near Real Time Precise Orbit and Clock Determination for GLONASS[J].Proceedings of International Technical Meeting of the Satellite Division of the Institute of Navigation,2010,7672(6):2771-2777.
[10]施闯,楼益栋,宋伟伟,等.广域实时精密定位原型系统及初步结果[J].武汉大学学报(信息科学版),2009,34(11):1271-1274.
[11]陈明,武军郦,李志才.北斗精密定轨及广播星历轨道精度评估[J].测绘工程,2016,25(11):1-6.
[12]赵齐乐.GPS导航星座及低轨卫星的精密定轨理论和软件研究[D].武汉:武汉大学,2004.
[13]李敏.多模GNSS融合精密定轨理论及其应用研究[D].武汉:武汉大学,2011.
[14]郝金明,刘伟平,杨力,等.北斗卫星导航系统精密定轨技术研究现状[J].测绘科学技术学报,2015,32(3):221-225.
[15]崔红正,唐歌实,宋柏延,等.北斗卫星导航系统实时定轨与钟差处理策略[J].中国空间科学技术,2015,35(5):1-7.
[16]李征航,黄劲松.GPS测量与数据处理[M].武汉:武汉大学出版社,2005.
[17]谭畅,陈国,魏娜,等.i GMAS轨道产品综合及精度初步分析[J]武汉大学学报(信息科学版),2016,41(11):1469-1475.
[18]ZHANG L P,DANG Y M,XUE S Q,et al.The Optimal Distribution Strategy of Bei Dou Monitoring Stations for GDO Precise Orbit Determination[M].Berlin:Springer,2015:153-161.
[2]SHI C,ZHAO Q L,LI M,et al.Precise Orbit Determination of Beidou Satellites with Precise Positioning[J].Science China(Earth Sciences),2012,55(7):1079-1086.
[3]罗璠,李建文,黄海,等.BDS广播星历的轨道误差分析[J].测绘通报,2015(2):70-72.
[4]楼益栋,施闯,葛茂荣,等.GPS卫星实时精密定轨及初步结果分析[J].武汉大学学报(信息科学版),2008,33(8):815-841.
[5]刘志强,王解先.广播星历SSR改正的实时精密单点定位及精度分析[J].测绘科学,2014,39(1):15-19.
[6]ORPEN O,MELGAARD T.Experiences with Fugro’s Real Time GPS/GLONASS Orbit/Clock Decimeter Level Precise Positioning System[C]∥Dynamic Positioning Conference.Houston:Sensors,2009.
[7]GLOCKER M,LANDAU H,LEANDRO R,et at.Global Precise Multi-GNSS Positioning with Trimble Centerpoint RTX[C]∥Satellite Navigation Technologies&European Workshop on GNSS Signals&Signal Processing.Noordwijk:IEEE,2012:1-8.
[8]ZHANG Q,MOORE P,HANLEY J,et at.Auto-BAHN:Software for Near Real-time GPS Orbit and Clock Computations[J].Advances in Space Research,2007,39(10):1531-1538.
[9]WEISS J P,BARSEVER Y,BERTIGER W.Near Real Time Precise Orbit and Clock Determination for GLONASS[J].Proceedings of International Technical Meeting of the Satellite Division of the Institute of Navigation,2010,7672(6):2771-2777.
[10]施闯,楼益栋,宋伟伟,等.广域实时精密定位原型系统及初步结果[J].武汉大学学报(信息科学版),2009,34(11):1271-1274.
[11]陈明,武军郦,李志才.北斗精密定轨及广播星历轨道精度评估[J].测绘工程,2016,25(11):1-6.
[12]赵齐乐.GPS导航星座及低轨卫星的精密定轨理论和软件研究[D].武汉:武汉大学,2004.
[13]李敏.多模GNSS融合精密定轨理论及其应用研究[D].武汉:武汉大学,2011.
[14]郝金明,刘伟平,杨力,等.北斗卫星导航系统精密定轨技术研究现状[J].测绘科学技术学报,2015,32(3):221-225.
[15]崔红正,唐歌实,宋柏延,等.北斗卫星导航系统实时定轨与钟差处理策略[J].中国空间科学技术,2015,35(5):1-7.
[16]李征航,黄劲松.GPS测量与数据处理[M].武汉:武汉大学出版社,2005.
[17]谭畅,陈国,魏娜,等.i GMAS轨道产品综合及精度初步分析[J]武汉大学学报(信息科学版),2016,41(11):1469-1475.
[18]ZHANG L P,DANG Y M,XUE S Q,et al.The Optimal Distribution Strategy of Bei Dou Monitoring Stations for GDO Precise Orbit Determination[M].Berlin:Springer,2015:153-161.