Abstract
Several analysis centers (AC) and a product integration and service center (ISC) have been built by the international GNSS continuous Monitoring and Assessment System (iGMAS) currently. ISC analyzes the quality of product provided by ACs of iGMAS, and then reprocesses to generate a combined product. The tropospheric solution is the key product of ISC and important data for satellite navigation and precise point positioning (PPP). First of all, this paper introduces the method and theory of tropospheric product combination by means of weighted average based on robust estimation. Then, the precision of combined tropospheric product of ISC and the AC’s product with respect to the JPL final tropospheric delay is compared and analyzed. Furthermore, the tests of using iGMAS data are implemented to verify the accuracy and reliability of combined tropospheric solution. The results show that the RMS of the combined tropospheric solutions of IGS stations are better than those of most analysis centers, and meet the accuracy requirement of iGMAS. Finally, the precision of ACs’ tropospheric products of iGMAS stations with respect to the ISC final products is compared and analyzed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Keshin M (2007) Sequential combination of troposphere time series. GPS Solut 11:37–47
Pacione R, Pace B, Vedel H et al (2011) Combination methods of tropospheric time series. Adv Space Res 47(2):323–335
Heinkelmann R, Boehm J, Schuh H et al (2007) Combination of long time-series of troposphere zenith delays observed by VLBI. J Geod 81(6):483–501
Thaller D (2008) Inter-technique combination based on homogeneous normal equation systems including station coordinates, Earth orientation and troposphere parameters. GFZ, Helmholtz-Zentrum, Potsdam
Li M, Xu TH (2015) A combined Kalman filter for troposphere time series. J Navig Position 3(3):79–84
Chen K, Xu T, Chen G et al (2015) The orbit and clock combination of iGMAS analysis centers and the analysis of their precision. In: Proceedings of China satellite navigation conference (CSNC) 2015, vol II. Springer, Heidelberg, pp 421–438
Byun SH, Bar-Sever YE, Gendt G (2005) The new tropospheric product of the international GNSS service. In: Proceedings of international technical meeting of the satellite division of the Institute of Navigation, pp 241–249
Ge MR, Liu JN (1996) The estimation methods for tropospheric delays in global positioning system. Acta Geodaetica Cartogr Sin 4:285–291
Byun SH, Bar-Sever YE (2009) A new type of troposphere zenith path delay product of the international GNSS service. J Geod 83(3):1–7
Yang YX (1993) Robust estimation theory and it’s applications. Bayi Publishing House, Beijing
Acknowledgments
Thanks to the ACs of iGMAS and JPL to provide the tropospheric products. This work is supported by the National Natural Science Foundation of China (No. 41574013 and 41174008) and the Foundation of State Key Laboratory of aerospace dynamics (No. 2014ADL-DW0101).
Author information
Authors and Affiliations
Corresponding authors
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 Springer Science+Business Media Singapore
About this paper
Cite this paper
Yang, Y., Xu, T., Sun, Z. (2016). The Tropospheric Product Combination of iGMAS Analysis Centers and the Analysis of Their Precision. In: Sun, J., Liu, J., Fan, S., Wang, F. (eds) China Satellite Navigation Conference (CSNC) 2016 Proceedings: Volume III. Lecture Notes in Electrical Engineering, vol 390. Springer, Singapore. https://doi.org/10.1007/978-981-10-0940-2_42
Download citation
DOI: https://doi.org/10.1007/978-981-10-0940-2_42
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-0939-6
Online ISBN: 978-981-10-0940-2
eBook Packages: EngineeringEngineering (R0)