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State of the Art of the Agriculture Professional GNSS Receivers

The aim of this paper is to present the outcomes of the agriculture testing campaign performed by Thales Alenia Space Italia in the implementation of a contract signed with the European GNSS Agency (GSA) and financed by the European Union under the Galileo Programme budget. The main objective of the test campaign is to evaluate the performance of a set of professional GNSS receivers, highlighting the added value of using the Galileo system in the GNSS market segment of agriculture Machine Guidance, in particular from the end user point of view. This paper will present anonymized performance of eight agriculture receivers, tested in parallel under the same live conditions, considering different configurations and augmentation modes. More specifically, GNSS Single Point Positioning (with both single frequency (SF) and multi-frequency (MF) approach), Satellite Based Augmentation System, Precise Point Positioning and Real Time Kinematic modes have been tested with singleconstellation and multi-constellation (MC) configurations, considering GPS, Galileo and GLONASS. The most relevant Key Performance Indicators (KPIs) for agriculture-related applications, such as cross-track accuracy and repeatability have been assessed per each test case. The results have shown that Galileo standalone configuration provides similar or even better performance than GPS standalone, despite the lower number of available satellites with respect to GPS. Moreover, it is also confirmed that its use in a multi-constellation configuration, especially for standalone positioning, enhances the performance for both positioning accuracy and availability.