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Research on Integrated Orbit Determination Combined Satellite-Ground and Inter-Satellite Observation Based on Helmert Method of Variance Components Estimate

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China Satellite Navigation Conference (CSNC) 2012 Proceedings

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 160))

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Abstract

Because of the different precision of the satellite-ground and inter-satellite observations, how to correctly determine the weight of the two kinds of observations is still a key technique in integrated orbit determination. According to the ground stations and different kinds of the inter-satellite cross-link of the Chinese COMPASS satellite navigation system, the weight of the two kinds of observations was determined by the Helmert method of variance components estimate, and then the new weight was used in the integrated orbit determination. The results show that this method could reasonably determine the weight of satellite-ground and inter-satellite observations and improve the precision of integrated orbit determination. For the integrated orbit determination based on the Satellite-Ground and Inter-Satellite cross-link fixed antenna data, the orbit accuracies improve from 0.15 to 0.04 m after use the Helmert estimation weight to replace the priori. And the result is 0.06–0.03 m for the Satellite-Ground and Inter-Satellite cross-link UHF antenna data.

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Acknowledgments

This study is sponsored by the Fundamental Research Fund for the Central Universities, Specialized Research Fund for the Doctoral Program of Higher Education (No. 20110141120076), and Open Research Fund Program of the Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, China (No. 10-02-01).

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Authors and Affiliations

  1. Research Center of GNSS, Wuhan University, Wuhan, China

    Xing Su, Tao Geng, Qile Zhao, Lizhong Qu & Xingkai Li

Authors
  1. Xing Su
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  2. Tao Geng
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  3. Qile Zhao
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  4. Lizhong Qu
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  5. Xingkai Li
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Corresponding author

Correspondence to Xing Su .

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Editors and Affiliations

  1. , China Aerospace Sci. & Technology Corp., Chinese Academy of Sciences, Beijing, China, People's Republic

    Jiadong Sun

  2. GPS Engineering Res. Center, Wuhan University, Wuhan, 430079, China, People's Republic

    Jingnan Liu

  3. China Natl. Admin. of GNSS & Application, Beijing, China, People's Republic

    Yuanxi Yang

  4. Dengzhuang South Road 9, Beijing, 100094, China, People's Republic

    Shiwei Fan

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© 2012 Springer-Verlag Berlin Heidelberg

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Su, X., Geng, T., Zhao, Q., Qu, L., Li, X. (2012). Research on Integrated Orbit Determination Combined Satellite-Ground and Inter-Satellite Observation Based on Helmert Method of Variance Components Estimate. In: Sun, J., Liu, J., Yang, Y., Fan, S. (eds) China Satellite Navigation Conference (CSNC) 2012 Proceedings. Lecture Notes in Electrical Engineering, vol 160. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29175-3_31

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  • DOI: https://doi.org/10.1007/978-3-642-29175-3_31

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-29174-6

  • Online ISBN: 978-3-642-29175-3

  • eBook Packages: EngineeringEngineering (R0)

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