Abstract
Positioning precision of navigation satellite system can be measured by two indicators: the dilution of precision (DOP) and the user equivalent range error (UERE). As the DOP values are only related to the spatial distribution of navigation satellites, the reduction of UERE is the main approach to improve the positioning precision. Equivalent satellite clock (ESC) has been used by Beidou satellite system (BDS) to reduce the UERE and to improve the user’s positioning accuracy. In this contribution, both the pseudo-range and carrier-phase measurements of BDS are used to compute the ESC respectively, and the corresponding navigation positioning performance are also compared. It is shown that the UERE improvement based on phase observables is 50.1%, while 32.1% based on pseudo-range observables. Kinematic positioning experiments of 4 MEGX stations are performed respectively under the standard PNT service and wide area differential service (WADS). It is shown that horizontal, vertical and three-dimensional positioning results of WADS are better than that of the standard PNT service.
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References
Misra P (2011) Global positioning system: signals, measurements, and performance. Ganga-Jamuna Press, Lincoln
Wei Z, Wang G (2000) Wide area differential gPS. Bull Survey Mapp 2000(06)
Tsai Y-J (1999) Wide area differential operation of the global positioning system: Ephemeris and clock algorithms. Ph. D. thesis, Stanford University
Zhou SS, Hu X, Wu B et al (2011) Orbit determination and time synchronization for a GEO/IGSO satellite navigation constellation with regional tephemeris and clock algorithm tracking network. Sci China Phys Mech Astron 54:1089–1097
Xing N (2013) Research on the application of wide area differential technique to compass system. University of Chinese Academy of Science, Beijing
Chen J, Yang S, Zhou J et al (2017) A pseudo-range and phase combined SBAS differential correction model. Acta Geodaet Cartogr Sinica 46(5):537–546
Yang S (2017) Research on BDS decimeter level SBAS and its performance assesment. University of Chinese Academy of Science, Beijing
Jiao W, Ding Q, Li J, Lu X et al (2011) Monitoring and assessment of GNSS open service. Sci China Phys Mech Astron
Cao Y (2014) Studies on the wide-area differential correction and integrity monitoring for the regional satellite navigation system of BeiDou. University of Chinese Academy of Science, Beijing
Acknowledgements
This work is support by the NSFC (No. 11673050) and the 863 (No. 2014AA123102) projects.
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Hou, Y., Chen, J., Wang, B., Wang, J. (2018). The Service Improvement of BDS Positioning Based on Advanced Equivalent Satellite Clock Calculation. In: Sun, J., Yang, C., Guo, S. (eds) China Satellite Navigation Conference (CSNC) 2018 Proceedings. CSNC 2018. Lecture Notes in Electrical Engineering, vol 497. Springer, Singapore. https://doi.org/10.1007/978-981-13-0005-9_38
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DOI: https://doi.org/10.1007/978-981-13-0005-9_38
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