Patent ID: 8005614

Claim:
A method for monitoring the integrity of an aircraft position channel on board said aircraft comprising: using a plurality of redundant primary channels, each redundant primary channel computing, during a primary computing cycle, a primary position (PosCri) of the aircraft; establishing, within the electronic control devices on-board in the aircraft, pairs of computing channels by associating, with each primary computing channel, a dissimilar computing channel, each dissimilar computing channel computing, during a dissimilar computing cycle, a dissimilar position (PosDis) of the aircraft; computing, for each computing channel pair established, a distance (E 1 ; E 2 ; E 3 ) between the primary position and the dissimilar position respectively computed by the primary computing channel and the dissimilar computing channel of the computing channel pair considered; comparing each distance computed to an alarm threshold; sending alarm information when at least one computed distance is greater than the alarm threshold.