The Study and Analysis on ARAIM Performance

Receiver autonomous integrity monitoring (RAIM) is the key approach to monitor the integrity of Global Navigation Satellite System (GNSS). Advanced RAIM (ARAIM) is the upgrade. The paper focuses on the ARAIM algorithm and tries to make some progress. According simulation and analysis, the performance of ARAIM is validated. It is showed that ARAIM method based on double constellations is effective for the users requiring high level of integrity, continuity and availability. When UERE is better than 2 meters, the performance of LPV-200 can be achieved without ground monitoring station net.