Final Presentation available for NAVISP EL1-088 bis "Proof-Of-Concept of Advanced Navigation Algorithms Based on Factor Graph Optimization"

On the 8th of October 2026 ABBIA “GNSS Technologies” presented the results of NAVISP‑EL1-088 quater, which investigated innovative navigation algorithms exploiting Factor Graph Optimization (FGO) for PVT estimation, both standalone and in combination with other sensors, and for different receiver grades (including high- and low-quality observables).

Abbia captured 24h of driving GNSS data in diverse environments around the city of Toulouse and evaluated few PVT algorithms based on EKF and FGO.

FGO has been shown to have interesting advantages over the EKF, especially for position in degraded measurements conditions and for Sensor Fusion.

This was the second project awarded on the subject of FGO.  

The activity was fully funded by ESA NAVISP Element 1, whose objective is to innovate PNT technologies, products and services. The slides can be accessed here.