利用参考站增强信息进行精密单点定位

测绘学报 ›› 2014, Vol. 43 ›› Issue (5): 481-485.

利用参考站增强信息进行精密单点定位

李黎¹,龙四春²,李浩军³,张立亚¹

1. 湖南科技大学
2. 湖南湘潭市湖南科技大学煤炭资源清洁利用与矿山环境保护湖南省重点实验室
3. 中国科学院上海天文台

收稿日期:2013-01-10 修回日期:2014-01-26 出版日期:2014-05-20 发布日期:2014-06-05
通讯作者: 龙四春 E-mail:sclong@hnust.edu.cn
基金资助:
国家自然科学基金项目;湖南省教育厅科学研究项目;湖南省科技计划项目

Precise Point Positioning Based on Reference Stations Augmentation Information

Received:2013-01-10 Revised:2014-01-26 Online:2014-05-20 Published:2014-06-05

摘要/Abstract

摘要：

提出一种基于参考站增强信息的精密单点定位（Precise Point Positioning，PPP)新算法。与其它方法的不同在于采用星间历元间差分技术，消除了模糊度和接收机钟差，避免模糊度参数的收敛或固定。应用基于参考站的增强信息，以减弱残余对流层延迟和潜在偏差对定位结果的影响。与传统PPP处理方法相比较，提出的新方法可以改善位置参数的收敛速度，定位精度也有一定程度的提高。

关键词: 精密单点定位, 星间历元间差分误差, 区域增强, 参考站网

Abstract:

A new algorithm based on the regional reference stations network augmentation was proposed to realize Precise Point Positioning (PPP). Different from other methods, the presented strategy uses the Satellite-Differenced and Epoch-Differenced (SDED) technology. It removes the ambiguity and receiver clock parameters, and avoids the ambiguities converging or fixing. To weaken the influence of the residual tropospheric delay and potential biases, another new strategy is presented to deal with the Satellite and Epoch Differenced Biases (SEDB). Comparison to the normal PPP, the new method can improve the convergence and positioning accuracy, when less than 1500s data was processed.

Key words: Precise Point Positioning, Satellite and Epoch Differenced Bias(SEDB), Regional Augmentation, Reference Stations Network

中图分类号:

P228.4

李黎龙四春李浩军张立亚. 利用参考站增强信息进行精密单点定位[J]. 测绘学报, 2014, 43(5): 481-485.

参考文献

[1] Zumberge J.F., Heflin M.B., Jefferson D.C., Watkins M.M.,Webb F.H. Precise point positioning for the efficient and robust analysis of GPS data from large networks [J]. Journal of Geophysical Research, 1997, 102(B3): 5005-5017
[2] Kouba J.,Heroux P. Precise Point Positioning Using IGS Orbit and Clock Products [J]. GPS Solutions, 2001, 5(2): 12-28
[3] Gao Y.,Shen X. Improving Ambiguity Convergence in Carrier Phase-Based Precise Point Positioning [C]. ION GPS 2001. Salt Lake City, UT, 2001
[4] Bisnath S.,Gao Y. Current State of Precise Point Positioning and Future Prospects and Limitations [C]. IUGG 24th General Assembly. Perugia, Italy, 2007
[5] Ge M., Gendt G., Rothacher M., Shi C.,Liu J. Resolution of GPS carrier-phase ambiguities in Precise Point Positioning (PPP) with daily observations [J]. Journal of Geodesy, 2008, 82(7): 389-399
[6] Collins P. Isolating and Estimating Undifferenced GPS Integer Ambiguities [J]. Proceedings of the 2008 National Technical Meeting of the Institute of Navigation - Ntm 2008, 2008: 720-732
[7] Geng J., Meng X., Dodson A.,Teferle F. Integer ambiguity resolution in precise point positioning: method comparison [J]. Journal of Geodesy, 2010: 1-13
[8] Laurichesse D., Mercier F.,Berthias J.P. Real Time Precise GPS Constellation Orbits and Clocks Estimation using Zero-difference Integer Ambiguity Fixing [C]. Proceedings of the 2009 International Technical Meeting of the Institute of Navigation - ITM 2009. Anaheim, CA, 2009
[9] Geng J., Teferle F.N., Shi C., Meng X., Dodson A.H.,Liu J. Ambiguity resolution in precise point positioning with hourly data [J]. GPS Solutions, 2009, 13(4): 263-270
[10] Li H., Chen J., Wang J., Hu C.,Liu Z. Network based Real-time Precise Point Positioning [J]. Advances in Space Research, 2010, 46(9): 1218-1224
[11] Li H., Wang J., Chen J.,Hu C. The research on the rapid static precise point positioning based on ridged estimation [J]. Acta Astronomica Sinica, 2009, 50(4): 438-444
[12] Banville S.,Langley R.B. Instantaneous cycle-slip correction for real-time PPP applications [J]. Navigation, 2010, 57(4): 325-334
[13] Geng J., Meng X., Dodson A.H., Ge M.,Teferle F.N. Rapid re-convergences to ambiguity-fixed solutions in precise point positioning [J]. Journal of Geodesy, 2010, 84(12): 705-714
[14] Ge M., Zou X., Dick G., Jiang W.W.J.,Liu J. An alternative Network RTK approach based on undifferenced observation corrections [C]. ION GNSS 2010. Portland, Oregon, 2010
[15] Li X., Zhang X.,Ge M. Regional reference network augmented precise point positioning for instantaneous ambiguity resolution [J]. Journal of Geodesy, 2011, 85(3): 151-158
[16] Han S.-C., Kwon J.H.,Jekeli C. Accurate absolute GPS positioning through satellite clock error estimation [J]. Journal of Geodesy 2001, 75(1): 33-43