in charge of Instrument Landing Systems at DGAC/STNA (Service Technique de la Navigation Aérienne) and 9 years

of teaching and research activities on CNS systems at ENAC, B. Roturier is currently in charge of GNSS Navigation subdivision at STNA and is involved in several projects including GPS/ABAS, EGNOS and Galileo. Eric Chatre graduated as an electronics engineer in 1992 from the ENAC (Ecole Nationale de l’Aviation Civile), Toulouse, France. Since 1994, he has been working with the Service Technique de la Navigation Aérienne (STNA) in Toulouse on implementation of satellite navigation in civil aviation. He is involved in the development of EGNOS and in the definition phase of Galileo. He is also participating in GNSS standardization activities in EUROCAE, RTCA forums and is currently the chairman of ICAO GNSSP technical group. Dr. Javier Ventura-Traveset holds a MS in Telecom