GNSS Satellite Autonomous Integrity Monitoring (SAIM) using inter-satellite measurements |
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Authors: | Hongliang Xu Jinling Wang Xingqun Zhan |
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Institution: | 1. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai, China;2. School of Surveying and Spatial Information Systems, University of New South Wales, Sydney, NSW 2052, Australia |
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Abstract: | Integrity is the ability of Global Navigation Satellite Systems (GNSS) to detect faults in measurements and provide timely warnings to users and operators when the navigation system cannot meet the defined performance standards, which is of great importance for safety of life critical applications. Compared with both Receiver Autonomous Integrity Monitoring (RAIM) and ground based GNSS Integrity Channel (GIC) methods which are widely adopted nowadays, the Satellite Autonomous Integrity Monitoring (SAIM) method can be used to monitor orbit/ephemeris and clock errors, and has advantages in monitoring orbit and clock quality and providing instantaneous responses when faults happen. |
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Keywords: | Satellite Autonomous Integrity Monitoring Inter-satellite measurements GNSS |
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