Convergence Time and Positioning Accuracy Comparison between BDS and GPS Precise Point Positioning

doi:10.11947/j.AGCS.2015.20130771

Abstract

Abstract: BDS/GPS data from MGEX were processed by TriP 2.0 software developed at Wuhan University. Both static and kinematic float PPP are tested by adopting precise satellite orbits and clocks provided by Research Center of GNSS, Wuhan University. The results show that the convergence time of BDS static PPP is about 80min while kinematic PPP is about 100min. For 3h observations, static positioning accuracy of 5 cm and kinematic positioning accuracy of 8 cm in horizontal, about 12 cm in vertical can be achieved. Similar to GPS PPP, precision in east component is worse than north. At present, BDS PPP needs longer convergence time than GPS PPP to reach an absolute positioning accuracy of cm~dm due to the lack of global tracking stations and the limited accuracy of orbit and clock products.

Key words: BDS, precise point positioning, positioning accuracy, convergence time

CLC Number:

P228

ZHANG Xiaohong, ZUO Xiang, LI Pan, PAN Yuming. Convergence Time and Positioning Accuracy Comparison between BDS and GPS Precise Point Positioning[J]. Acta Geodaetica et Cartographica Sinica, 2015, 44(3): 250-256.

References

[1] ZUMBERGE J F, HEFLIN M B, JEFFERSON D C, et al. Precise Point Positioning for the Effcient and Robust Analysis of GPS Data from Large Networks[J]. Journal of Geophysical Research, 1997, 102(B3): 5005-5017.
[2] KOUBA J, HÉROUX P. GPS Precise Point Positioning Using IGS Orbit Products[J]. GPS Solutions,2001, 5(2): 12-28.
[3] ZHANG Xiaohong, LI Pan, ZUO Xiang. Kinematic Precise Orbit Determination Based on Ambiguity-fixed PPP[J]. Geomatics and Information Science of Wuhan University, 2013,38(9): 1009-1013. (张小红,李盼,左翔. 固定模糊度的精密单点定位几何定轨方法及结果分析[J]. 武汉大学学报 :信息科学版, 2013,38(9): 1009-1013.)
[4] ZHANG Xiaohong, HE Xiyang, LI Xingxing. Analysis of Undifferenced Kinematic POD for LEOs Using Trip[J]. Geomatics and Information Science of Wuhan University, 2010,35(11): 1327-1330. (张小红,何锡扬,李星星. Trip软件非差几何法精密定轨精度分析[J]. 武汉大学学报:信息科学版, 2010,35(11): 1327-1330.)
[5] ZHANG Xiaohong, ANDERSEN O. Surface Ice Flow Velocity and Tide Retrieval of the Amery Ice Shelf Using Precise Point Positioning[J]. Journal of Geodesy,2006, 80(4): 171-176.
[6] ZHANG Xiaohong, LIU Jingnan, FORSBERG Rene. Application of Precise Point Positioning in Airborne Survey[J]. Geomatics and Information Science of Wuhan University, 2006,31(1): 19-22. (张小红,刘经南,Forsberg Rene. 基于精密单点定位技术的航空测量应用实践[J]. 武汉大学学报:信息科学版, 2006,31(1): 19-22.)
[7] ZHANG Baocheng, OU Jikun, YUAN Yunbin, et al. Calibration of Slant Total Electron Content and Satellite-receiver's Differential Code Biases with Uncombined Precise Point Positioning Technique[J]. Acta Geodaetica et Cartographica Sinica, 2011, 40(4): 447-453. (张宝成,欧吉坤,袁运斌,等. 利用非组合精密单点定位技术确定斜向电离层总电子含量和站星差分码偏差[J]. 测绘学报, 2011, 40(4): 447-453.)
[8] YUAN Xiuxiao, FU Jianhong, LOU Yidong. GPS-supproted Aerotriangulation Based on GPS Precise Point Positioning[J]. Acta Geodaetica et Cartographica Sinica, 2007,36(3): 251-255. (袁修孝,付建红,楼益栋. 基于精密单点定位技术的GPS辅助空中三角测量[J]. 测绘学报,2007,36(3): 251-255.)
[9] YANG Yuanxi. Progress, Contribution and Challenge of Compass/BeiDou Satellite Navigation System[J]. Acta Geodaetica et Cartographica Sinica, 2010,39(1): 1-6. (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.)
[10] SHI Chuang, ZHAO Qile, LI Min, et al. Precise Orbit Determination of Beidou Satellites with Precise Positioning[J]. Science China Earth Science, 2012,55(7):1079-1086. (施闯,赵齐乐,李敏,等. 北斗卫星导航系统的精密定轨与定位研究[J]. 中国科学: 地球科学,2012, 42(6): 854-861.)
[11] MONTENBRUCK O, HAUSCHILD A, STEIGENBERGER P, et al. Initial Assessment of the COMPASS/BeiDou-2 Regional Navigation Satellite System[J]. GPS Solutions,2013(17): 2111-2122.
[12] MA Rui, SHI Chuang. Precise Point Postioning Research Based on BeiDou Navigation Satellite System[J]. Journal of Navigation and Positioning, 2013,1(2): 7-10. (马瑞,施闯. 基于北斗卫星导航系统的精密单点定位研究[J]. 导航定位学报, 2013,1(2): 7-10.)
[13] LI W, TEUNISSEN P, ZHANG Baocheng, et al. Precise Point Positioning Using GPS and Compass Observations[C]// Proceedings of China Satellite Navigation Conference (CSNC) 2013. [S.l.]:Springer, 2013.
[14] QU Lizhong, ZHAO Qile, LI M, et al. Precise Point Positioning Using Combined Beidou and GPS Observations[C]//Proceedings of China Satellite Navigation Conference (CSNC) 2013. [S.l.]:Springer, 2013.
[15] SAASTAMOINEN J H. Atmospheric Correction for the Troposphere and Stratosphere in Radio Ranging of Satellites[C]//The Use of Artificial Satellites for Geodesy. Washington D C:[s.n.], 1972.
[16] BOEHM J, NIELL A, TREGONING P, et al. Global Mapping Function (GMF): A New Empirical Mapping Function Based on Numerical Weather Model Data[J]. Geophysical Research Letters,2006, 33(7): 304-307.
[17] ZHANG Xiaohong, GUO Fei, LI Pan, et al. Real-time Quality Control Procedure for GNSS Precise Point Positioing[J]. Geomatics and Information Science of Wuhan University, 2012,37(8): 940-944. (张小红,郭斐,李盼,等. GNSS精密单点定位中的实时质量控制[J]. 武汉大学学报:信息科学版, 2012,37(8): 940-944.)
[18] ZHOU Jiangwen. Classical Theory of Errors and Robust Estimation[J]. Acta Geodaetica et Cartographica Sinica, 1989,18(2): 115-120. (周江文. 经典误差理论与抗差估计[J]. 测绘学报, 1989,18(2): 115-120.)
[19] ZHANG Xiaohong, LI Pan, GUO Fei. Ambiguity Resolution in Precise Point Positioning with Hourly Data for Global Single Receiver[J]. Advances in Space Research,2013,51(1):153-161.
[20] LI Pan, ZHANG Xiaohong. Integrating GPS and GLONASS to Accelerate Convergence and Initialization Times of Precise Point Positioning[J].GPS Solutions,2014,18(3): 461-471.
[21] BLEWITT G. Carrier Phase Ambiguity Resolution for the Global Positioning System Applied to Geodetic Baselines up to 2000 km[J]. Journal of Geophysical Research,1989, 94(B8): 187-203.