Receiver autonomous integrity monitoring
From EUROCONTROL ATM Lexicon
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| Term | receiver autonomous integrity monitoring |
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Abbreviation
RAIM
Definition
1) A technique whereby a civil GNSS receiver / processor determines the integrity of the GNSS navigation signals without reference to senders or non-DoD integrity systems other than the receiver itself. This determination is achieved by consistency check among redundant pseudorange measurements.
2) A form of ABAS whereby a GNSS receiver processor determines the integrity of the GNSS navigation signals using only GPS signals or GPS signals augmented with altitude (baroaiding). This determination is achieved by a consistency check among redundant pseudo-range measurements.
Definition Source
1) EUROCONTROL EATMP Glossary, June 2001
2) ICAO, DOC 9613 Manual on Required Navigation Performance (RNP) 2008, 3rd ed., p. I-(xx)
