Abstract
This paper evaluates the precision of iGMAS orbit and clock products, and analyzes their consistency. By the methods of orbit comparisons and day boundary discontinuities (DBDs), the iGMAS orbit precision is evaluated. The twice difference method is used to evaluate clock precision. On the basis of precision analysis, consistency of orbit and clock products from different analysis centers (AC) was compared by precise point positioning (PPP) technique. The quality of orbit, clock, and GNSS observation would have a large impact on the accuracy of PPP. Therefore, the experimental data for consistency analysis includes MGEX station observation data with good quality, and the orbit/clock products with comparable precision. Using the proposed method, precision, and consistency of iGMAS orbit and clock products from different AC are analyzed.
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Acknowledgment
This work was supported by Natural Science Foundation of China (No. 41174008 and 41574013) and open foundation of State Key Laboratory of Aerospace and Dynamics (No. 2014ADL-DW0101).
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© 2016 Springer Science+Business Media Singapore
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Yu, S., Xu, T. (2016). Precision Evaluation and Consistency Analysis of iGMAS Orbit and Clock Products. 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_16
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DOI: https://doi.org/10.1007/978-981-10-0940-2_16
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Online ISBN: 978-981-10-0940-2
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