Abstract
The first results of the short baseline single-epoch kinematic positioning based on dual-frequency real BeiDou/GPS data are presented. The performance of the BeiDou/GPS single-epoch positioning is demonstrated in both static and kinematic modes and compared with corresponding GPS-only performance. It is shown that the availability and reliability of the single-frequency BeiDou/GPS and dual-frequency BeiDou single-epoch kinematic positioning are comparable to those of the dual-frequency GPS. The fixed rate and reliability of ambiguity resolution for the single- and dual-frequency BeiDou/GPS are remarkably improved as compared to that of GPS-only, especially in case of high cutoff elevations. For positioning accuracy with fixed ambiguities, the BeiDou/GPS single-epoch solutions are improved by 23 and 4 % relative to the GPS-only case for two short baseline tests of 8 km, respectively. These results reveal that dual-frequency BeiDou real-time kinematic (RTK) is already applicable in Asia–Pacific areas and that single-frequency BeiDou/GPS RTK is also achievable but only with initialization of several seconds. More promisingly, the dual-frequency BeiDou/GPS RTK can overcome the difficulties with GPS-only RTK under the challenging conditions assuming, of course, that the additional BeiDou satellites are visible.
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The authors are very grateful to three anonymous reviewers for their patient and constructive suggestions in improving our manuscript and to Dr. Bofeng Li from Tongji University for careful polishing this manuscript presentation. This work is funded by the National Natural Science Funds of China (Grant Nos. 41020144004; 41104022), the National “863 Program” of China (Grant No: 2013AA122501) and the 2nd and 3rd China Satellite Navigation Conference (Grant Nos. CSNC2011-QY-13; CSNC2012-QY-3).
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He, H., Li, J., Yang, Y. et al. Performance assessment of single- and dual-frequency BeiDou/GPS single-epoch kinematic positioning. GPS Solut 18, 393–403 (2014). https://doi.org/10.1007/s10291-013-0339-3
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DOI: https://doi.org/10.1007/s10291-013-0339-3