Receiver Autonomous Integrity Monitoring (RAIM) – Definition
RAIM is a GPS technology used to ensure that the incoming GPS signals are accurate and reliable for navigation purposes. It is a system designed to detect and alert pilots of any anomalies or failures in the GPS signals that may cause navigation errors. RAIM is essential for GPS units that are used for Instrument Flight Rules (IFR) as they require greater precision and safety. The system uses algorithms to analyze the GPS signals and cross-check them against each other to verify their integrity. In case of an error, RAIM will provide the necessary alerts to the pilot, allowing them to take corrective actions or switch to an alternate navigation method to ensure safety. RAIM enables aircraft to have more reliable and accurate navigation and therefore, helps in avoiding potentially dangerous situations.
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