Abstract | ||
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Precise point positioning (PPP) and its integer ambiguity resolution-enabled variant, PPP-RTK (real-time kinematic), can benefit enormously from the integration of multiple global navigation satellite systems (GNSS). In such a multi-GNSS landscape, the positioning convergence time is expected to be reduced considerably as compared to the one obtained by a single-GNSS setup. It is therefore the goal of the present contribution to provide numerical insights into the role taken by the multi-GNSS integration in delivering fast and high-precision positioning solutions (sub-decimeter and centimeter levels) using PPP-RTK. To that end, we employ the Curtin PPP-RTK platform and process data-sets of GPS, BeiDou Navigation Satellite System (BDS) and Galileo in stand-alone and combined forms. The data-sets are collected by various receiver types, ranging from high-end multi-frequency geodetic receivers to low-cost single-frequency mass-market receivers. The corresponding stations form a large-scale (Australia-wide) network as well as a small-scale network with inter-station distances less than 30 km. In case of the Australia-wide GPS-only ambiguity-float setup, 90% of the horizontal positioning errors (kinematic mode) are shown to become less than five centimeters after 103 min. The stated required time is reduced to 66 min for the corresponding GPS + BDS + Galieo setup. The time is further reduced to 15 min by applying single-receiver ambiguity resolution. The outcomes are supported by the positioning results of the small-scale network. |
Year | DOI | Venue |
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2018 | 10.3390/s18041078 | SENSORS |
Keywords | Field | DocType |
Global Navigation Satellite Systems (GNSS),PPP-RTK network and user,network in-loop,carrier phase ambiguity resolution,ionosphere weighted model | Galileo (satellite navigation),Geodetic datum,Electronic engineering,Real-time computing,Ranging,Ambiguity resolution,GNSS applications,Global Positioning System,Engineering,BeiDou Navigation Satellite System,Precise Point Positioning | Journal |
Volume | Issue | ISSN |
18 | 4.0 | 1424-8220 |
Citations | PageRank | References |
0 | 0.34 | 1 |
Authors | ||
5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Nandakumaran Nadarajah | 1 | 18 | 3.76 |
Amir Khodabandeh | 2 | 1 | 1.46 |
Kan Wang | 3 | 0 | 3.38 |
Mazher Choudhury | 4 | 0 | 0.68 |
Peter J. G. Teunissen | 5 | 24 | 7.51 |