Abstract
Global Navigation Satellite Systems (GNSS) are widely used to measure positions with accuracies ranging from a few mm to about 20 m. The effect of the Earth ionosphere on GNSS signal propagation is one of the main error sources which limits the accuracy and the reliability of GNSS applications. In particular, disturbed Space Weather conditions can be the origin of strong variability in the ionosphere Total Electron Content (TEC) which itself degrades the accuracy of GNSS applications. Space Weather effects on GNSS depend very much on the type of application. In this paper, we discuss the effects of Space Weather conditions on differential positioning with the Differential GPS (DGPS) technique and on relative positioning with the Real Time Kinematic (RTK) technique. We show that DGPS is affected by medium to large-scale gradients in TEC mainly observed at solar maximum when RTK will be degraded by smaller-scale ionospheric variability due to scintillations, TEC noise-like behaviour and Travelling Ionospheric Disturbances
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Warnant, R., Kutiev, I., Marinov, P., Bavier, M., Lejeune, S.: Ionospheric and geomagnetic conditions during periods of degraded GPS position accuracy: 2. RTK events during disturbed and quiet geomagnetic conditions, Adv. Space Res. accepted
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Warnant, R., Lejeune, S., Bavier, M. (2007). Space Weather Influence on Satellite-based Navigation and Precise Positioning. In: Lilensten, J. (eds) Space Weather. Astrophysics and Space Science Library, vol 344. Springer, Dordrecht. https://doi.org/10.1007/1-4020-5446-7_14
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DOI: https://doi.org/10.1007/1-4020-5446-7_14
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-5445-7
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