Galileo Test User Segment design and performances related to aeronautical safety of life applications

The Galileo Test User Segment (TUS) will be an active part in the validation of the future European Galileo Navigation System. In particular the Test User receiver for the Safety of Life (SoL) GALILEO service is the most demanding due to the safety critical needs required by aeronautics, maritime or rail applications. To cope with these demanding requirements, the design of the receiver takes into account different improvements with respect to a nominal navigation receiver like interference and multipath suppression, integrity algorithms and minimization of environment errors sources impacting both hardware and software part of the receiver. This paper focuses the performances of this type of terminal mainly from the User Equivalent Range Error, positioning accuracy, availability as well as integrity aspects point of view. A Galileo (TUS) Service Volume Simulator (SVS) has been developed in order to assess the performance without considering real input signals.