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GNSS multi-carrier fast partial ambiguity resolution strategy tested with real BDS/GPS dual- and triple-frequency observations

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Abstract

The regional constellation of BeiDou navigation satellite system (BDS) has been officially in operation since December 27, 2012, and real-time kinematic positioning using BDS and GPS multi-frequency observations is feasible. A heavy computational problem arises when resolving ambiguities in the case of multi-system with multi-frequency observations. A multi-carrier fast partial ambiguity resolution strategy is developed with the property that the extra-wide-lane and wide-lane ambiguities in the multi-frequency case can be resolved reliably in advance. Consequently, the technique resolves ambiguities sequentially instead of the usual batch ambiguity resolution (AR) mode so as to improve the computational efficiency of AR significantly. The strategy is demonstrated with real BDS/GPS dual- and triple-frequency observations. The results have shown that the probability of correct AR by the proposed method is comparable to that of the batch AR. Experimentally, the new method is about 2.5 times as fast as the batch AR in the dual-frequency case, 3 times in the mixed dual- and triple-frequency case and 3.5 times in the triple-frequency case.

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Acknowledgments

This work is funded by the National Natural Science Funds of China (Grant Nos. 41020144004; 41374019; 41104022), the National ‘‘863 Program’’ of China (Grant No: 2013AA122501) and the 3rd China Satellite Navigation Conference (Grant No. CSNC2012-QY-3). The authors also appreciate two anonymous reviewers for their valuable comments and improvements to this manuscript.

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Authors and Affiliations

  1. Information Engineering University, Zhengzhou, 450052, China

    Jinlong Li & Junyi Xu

  2. National Key Laboratory of Geo-Information Engineering, Xi’an, 710054, China

    Yuanxi Yang

  3. China National Administration of GNSS and Applications, Beijing, 100088, China

    Yuanxi Yang

  4. Beijing Satellite Navigation Center, Beijing, 100094, China

    Haibo He & Hairong Guo

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  1. Jinlong Li
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  2. Yuanxi Yang
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  3. Junyi Xu
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  4. Haibo He
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  5. Hairong Guo
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Correspondence to Jinlong Li.

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Li, J., Yang, Y., Xu, J. et al. GNSS multi-carrier fast partial ambiguity resolution strategy tested with real BDS/GPS dual- and triple-frequency observations. GPS Solut 19, 5–13 (2015). https://doi.org/10.1007/s10291-013-0360-6

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  • DOI: https://doi.org/10.1007/s10291-013-0360-6

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