BDS Satellite Real-time Orbit Determination and SSR Correction Generation

doi:10.13474/j.cnki.11-2246.2017.0368

Abstract

Abstract: 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 BeiDou 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 BeiDou 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 BeiDou 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.

Key words: real-time orbit determination, SSR orbit correction, antenna phase center correction, IODE

CLC Number:

P228.4

ZHANG Longping, DANG Yamin, GU Shouzhou, WANG Hu, XU Changhui, HAN Hengxing. BDS Satellite Real-time Orbit Determination and SSR Correction Generation[J]. 测绘通报, 2017, 0(12): 1-5.

References

[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] ØRPEN 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.iGMAS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 BeiDou Monitoring Stations for GDO Precise Orbit Determination[M].Berlin:Springer,2015:153-161.