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| Study on Safety design and its validation for CAT-III GBAS (GAST-D) |
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| CAT-III precision approach which requires extremely high safety is a challenge to realize seamless GNSS based operations.International Civil Aviation Organization (ICAO) has developed a baseline SARPs (Standards and Recommended Practices) for GAST-D which is a CAT-III GBAS (Ground based Augmentation System) using a GPS L1 signal. In order to develop a safe GAST-D system, key risks under Japanese environment are identified. An ionospheric threat model for Asia and Pacific region is developed and validated to mitigate ionospheric integrity risk which is one of the most important issue for GAST-D but is variable in region to region. |
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Reserch Group
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Takayuki Yoshihara,Susumu Saitou,Kazuaki Hoshinoo |
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