抄録
CARATS (Collaborative Actions for Renovation of Air Traffic Systems) is a Japanese long-term vision of the future ATM (Air Traffic Management) which was planned to promote the research and development of the Japanese ATM system. CARATS Open Data released by the Japanese government in 2015 are operating data of RDP (Radar Data Processing) system actually used in four ACCs (Area Control Center) in Fukuoka FIR (Flight Information Region). Accuracy of the longitude and latitude of CARATS Open Data is evaluated by using GPS data measured in the airliner cabin. Results show that the longitude error of CARATS Open Data increases with the distance from Tokyo ACC and discontinuous changes occur when a reference radar site is handed over to another radar site. The effect of longitudinal and latitude errors of CARATS Open Data to flight parameters estimation is also studied, where it reveals that appropriate data processing is necessary to estimate parameters such as air speed and fuel flow.
