The Galileo-based UAV velocity: Doppler and Time-Differenced Carrier Phase

Accurate GNSS navigation is crucial in several applications, e.g., automotive, aerospace, maritime, pedestrian and so on. In the aerospace domain, specifically in the UAV sector, the knowledge of the flying object dynamic is crucial, since such kind of navigation could be conducted in challenging scenario. On the one hand, the Doppler shift is one of the most common approaches to estimate the velocity of a vehicle equipped with a GNSS receiver. On other hand, the TDCP is a powerful technique, relying on carrier-phase, enabling millimetric-per-second accurate velocities. In this study, both techniques are adopted to estimate the velocity of GNSS receiver mounted on a UAV in kinematic and static scenario. Promising results have been obtained from TDCP, inspiring future and more detailed studies on the use of such a technique in the aerospace domain.