Recent Research on Satellite Autonomous Integrity Monitoring(SAIM) Technology
- Paper number
IAC-13,B2,7,6,x18171
- Author
Mr. Bian Lang, Xi'an Institute of Space Radio Technology, China
- Coauthor
Mr. Yansong Meng, China
- Coauthor
Prof. Lixin Zhang, China
- Coauthor
Dr. Xiaoxia Tao, China
- Coauthor
Mr. Qibing Xu, China
- Coauthor
Mr. Wang Lei, China
- Coauthor
Dr. Guan Gangqiang, China
- Coauthor
Dr. Liu Wenshan, China
- Coauthor
Prof. Xu Lina, China
- Coauthor
Mr. Xiaoping Qian, China
- Coauthor
Mr. Han Hong, China
- Coauthor
Dr. Fan Ruijun, China
- Year
2013
- Abstract
Detecting navigation signal faults on-board autonomously could reduce the period of Time-to-Alarm (TTA), and prevent user to be exposed to worsen PVT services efficiently, once the signal error beyond the alarm threshold. This paper researches the recent development of SAIM technology of GPS and GALILEO, analyses the statistical characterization of navigation signal in-orbit in the past, and concludes that the satellite clock fault is the main integrity factor of Global Navigation Satellite System (GNSS). This paper imposes a method of satellite clock integrity monitoring to determine the integrity status of clock, through synthetically processing timing signal and information of itself and inter-satellite measurement. Meanwhile, this paper gives two possible ways of alarming manner of SAIM, and assesses the TTA in each manner.
- Abstract document
- Manuscript document
IAC-13,B2,7,6,x18171.pdf (🔒 authorized access only).
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