Determination of GNSS RTK accuracy in various environments (13037) |
| Paul Denys, Yuxi Jin, Jett Gannaway and Hamish Gibson (New Zealand) |
Dr Paul Denys
Lecturer
School of Surveying
Otago University
Dunedin
New Zealand
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| Corresponding author Dr Paul Denys (email: pdenys[at]surveying.otago.ac.nz, tel.: +6434797596) |
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Published on the web 2025-03-16
Received 2024-12-02 / Accepted n/a |
| This paper is one of selection of papers published for the FIG Working Week 2025 in Brisbane, Australia PEER REVIEW in Brisbane, Australia and has undergone the FIG Peer Review Process. |
FIG Working Week 2025 in Brisbane, Australia PEER REVIEW
ISBN n/a ISSN 2307-4086
URL n/a
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Abstract |
| Real-Time Kinematic (RTK) is a well-established and versatile Global Navigation Satellite Systems (GNSS) technique widely used in the surveying and geospatial industries. Users are generally aware of GNSS measurement errors caused by satellite geometry, signal transmission, and the local environment, as well as the methods used to mitigate these errors. Most errors are minimized using robust mathematical algorithms, such as double differencing and On-the-Fly techniques, along with appropriate models to account for factors like antenna phase centre and tropospheric delay. However, errors caused by the local environment, such as signal multipath and obstructions from man-made structures or vegetation, remain challenging to address.
This study investigates how reduced signal availability (satellite geometry) in challenging environments affects RTK coordinate accuracy. It quantifies these errors in areas with poor sky visibility and examines the impact of using different satellite constellations, including GPS+Galileo+BDS (GEC), GPS+BDS (GE), and GPS-only (G) configurations.
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| Keywords: GNSS/GPS; Positioning; Engineering survey; Cadastre; Keyword 1; Keyword RTK Errors, Multipath, Satellite Visibility, Adverse Environment2; Keyword 3 |
