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Satellite Navigation brings forth Much Safer and More Efficient Aircraft Operation
MSAS provides augmentation information, which improves the accuracy, reliability and safety of GPS, for aircraft using GPS navigation.
MSAS receives GPS signal at the Ground Monitor Stations and the Monitor & Ranging Stations, checks operational status of GPS, analyze GPS error and ionospheric delay, and then broadcasts augmentation information through MTSAT (Multi-functional Transport Satellite) from the Master Control Stations.
NEC manufactured and delivered MSAS under contract with the Civil Aviation Bureau, Ministry of Land, Infrastructure, Transport and Tourism.
New CNS/ATM systems including MSAS not only improved coverage and accuracy increase air traf f ic control capacity but also produce the following merits.