Description of the function of a GNSS base station
A GNSS base station is a fixed receiving station that continuously receives signals from Global Navigation Satellite System (GNSS) satellites. Its main functions are:
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Reference position : The base station has a known, precisely measured position. This precise position is used to determine deviations in the GNSS satellite signals.
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Correction data : The base station calculates correction data based on the differences between the known position and the positions determined by GNSS. This correction data is sent to mobile GNSS receivers (rovers).
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RTK support : For applications that require high accuracy, such as surveying and construction, the base station supports Real-Time Kinematic (RTK). It sends real-time corrections to the rovers, allowing them to determine positions with centimeter accuracy.
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Data logging : The base station continuously stores GNSS data that can be used for subsequent evaluations and post-processing.
By providing precise correction data, a GNSS base station significantly improves the accuracy and reliability of GNSS measurements.
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