A Test on the Potential of a Low Cost Unmanned Aerial Vehicle RTK/PPK Solution for Precision Positioning
Autor: | Carmine Grasso, Annamaria Vicari, Gianpaolo Cecere, Nicola Angelo Famiglietti, Antonino Memmolo |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
010504 meteorology & atmospheric sciences
Mean squared error Computer science RTK UAV PPK 0211 other engineering and technologies 02 engineering and technology Kinematics TP1-1185 drone photogrammetry 01 natural sciences Biochemistry Article Analytical Chemistry Multi-Base GNSS remote sensing Real Time Kinematic Electrical and Electronic Engineering Digital elevation model Instrumentation 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing GNSS Chemical technology Process (computing) Atomic and Molecular Physics and Optics Photogrammetry GNSS applications Satellite precision positioning |
Zdroj: | Sensors, Vol 21, Iss 3882, p 3882 (2021) Sensors Volume 21 Issue 11 Sensors (Basel, Switzerland) |
ISSN: | 1424-8220 |
Popis: | This paper investigated the achievable accuracy from a low-cost RTK (Real Time Kinematic)/PPK (Post Processing Kinematic) GNSS (Global Navigation Satellite Systems) system installed on board a UAV (Unmanned Aerial Vehicle), employing three different types of GNSS Bases (Alloy, RS2 and RING) working in PPK mode. To evaluate the quality of the results, a set of seven GCPs (Ground Control Points) measured by means of the NRTK (Network Real Time Kinematic) technique was used. The outcomes show a RMSE (Root Mean Square Error) of 0.0189 m for an ALLOY Base, 0.0194 m for an RS2 Base and 0.0511 m for RING Base, respectively, on the vertical value of DEMs (Digital Elevation Models) obtained by a photogrammetric process. This indicates that, when changing the Base for the PPK, the solutions are different, but they can still be considered adequate for precision positioning with UAVs, especially when GCPs could be used with some difficulty. Therefore, the integration of a RTK/PPK GNSS module on a UAV allows the reconstruction of a highly detailed and precise DEM without using GCPs and provides the possibility to carry out surveys in inaccessible areas. |
Databáze: | OpenAIRE |
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