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논문 기본 정보

자료유형
학술저널
저자정보
우남규 (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea) 남기훈 (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea) 최헌호 (Korea Aerospace Research Institute, Daejeon 34133, South Korea) 이지윤 (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea)
저널정보
사단법인 항법시스템학회 Journal of Positioning, Navigation, and Timing Journal of Positioning, Navigation, and Timing Vol.13 No.1
발행연도
2024.3
수록면
53 - 61 (9page)
DOI
10.11003/JPNT.2024.13.1.53

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초록· 키워드

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Global Navigation Satellite Systems are expected to meet system-defined integrity requirements when users utilize the system for safety critical applications. While the guaranteed integrity performance of GPS and Galileo is publicly available, their integrity assurance procedure and related methodology have not been released to the public in an official document format. This paper summarizes the integrity assurance procedures of Global Positioning System (GPS) and Galileo, which were utilized during their system development, through a literature survey of their integrity assurance methodology. GPS Block II assures system integrity using the following methods: continuous performance monitoring and maintenance on Space Segment (SS) and Control Segment (CS), through a cause and effect analysis of anomalies and a failure analysis. In GPS Block III, to achieve more stringent integrity performance, safety requirements are integrated into the system design and development from its starting phase to the final phase. Galileo's integrity performance is provided in the Integrity Support Message (ISM) format, as Galileo utilizes a Dual Frequency Multi Constellation (DFMC) Satellite Based Augmentation System (SBAS) and Advanced Receiver Autonomous Integrity Monitoring (ARAIM) to serve safety critical applications. The integrity performance of Galileo is ensured by using a methodology similar to GPS Block II (i.e. continuous performance monitoring and maintenance on the system). The integrity assurance procedures reviewed in this paper can be utilized for a new satellite navigation system that will be developed in the near future.

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