Upcoming NNF Webinar - 14th December 2023 15:00 CET
17. 11On December 14th at 15:00, Per Helge Aarnes, winner of the NNF master thesis prize will give a presentation titled "Possible Impact of Construction Activities Around a Permanent GNSS Station – A Time Series Analysis"
Abstract:
The thesis investigates the potential impact of construction activities near a permanent Global Navigation Satellite System (GNSS) station. Utilizing a consistent time series of GNSS observations spanning twelve years, the study conducts analyses in both observation and coordinate domains. Notably, in the observation domain, a significant increase in code multipath is observed for the C1C signal of GPS and GLONASS, with RMS values rising by 37% and 31%, respectively. Interestingly, the Galileo E5 AltBOC signal outperforms other signals in case of distinguishing direct from indirect signals. In the coordinate domain, relative GNSS solution results indicate an increase in RMS for the eastern component during the same period. Noteworthy, the observed increase in both domains coincided with the period of the highest level of construction activity.
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