Future Agriculture through Innovative GNSS Robustness

On 9th September 2025, Spacearth Technology and Gter delivered the final presentation of the NAVISP EL2-140 “FAIR” project; Future Agriculture through Innovative GNSS Robustness. This initiative aimed to enhance precision agriculture in low-latitude regions by mitigating GNSS errors caused by ionospheric scintillation and multipath effects.

The project developed a low-cost GNSS positioning device and a Scintillation Mitigation Service powered by a patented short-term forecasting algorithm. A dedicated forecasting and mitigation centre was established to deliver real-time corrections, while field demonstrations in Brazil validated the system’s performance under challenging conditions.

Static and kinematic experiments showed that proximity to RTK reference stations significantly improved accuracy, even without mitigation. However, in more dispersed setups, the mitigation algorithms demonstrated tangible improvements, especially when supported by localized ionospheric monitoring networks. Multipath mitigation was also explored using Anubis diagnostics and GREP algorithms, with frequency analysis confirming reduced high-frequency error components.

The FAIR prototype successfully integrated open-source RTKLIB with commercial-grade solutions, laying the foundation for scalable deployment. Industry interest was confirmed through a Proof of Concept with a global mining leader and ongoing licensing negotiations with a major GNSS manufacturer.

Next steps include expanding the mitigation network, integrating scintillation and multipath algorithms, adapting the solution for high-latitude environments, and exploring applications in PPP, maritime, drone logistics, and autonomous vehicles.

The project was supported by NAVISP Element 2. Access the slides here.