Abstract:Receiver autonomous integrity monitoring (RAIM) is one of the most important integrity enhancing methods in navigation system, which has been equipped in many GPS receivers of civil aircrafts. RAIM detects GNSS (Global Navigation Satellite System) fault through redundant measurements. The performance of navigation system will be dramatically affected by the availability of RAIM. A classical RAIM algorithm is to compare the value of Horizontal Protection Level (HPL) with Horizontal Alert Limit (HAL). If the HPL… Show more
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