Heading reference system with remote-mounted sensor

G - Physics – 01 – C

Patent

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Details

G01C 25/00 (2006.01) G01C 17/38 (2006.01) G01C 21/00 (2006.01) G01C 21/08 (2006.01) G05D 1/08 (2006.01)

Patent

CA 2660632

A navigation system for an aircraft includes one or more wing-mounted sensors whose outputs are effected by the flexing of the wing during flight. The navigation system corrects for these errors using measurements of actual wing flex taken during an initial flight and thereafter assumed to be valid for all subsequent flights and for all aircraft using the same type of airframe. The actual measurements of wing flex define a wing flex correction factor that the navigation system may adjust during flight to reduce or remove residual errors. The wing flex correction factor accounts for all three types of possible wing flex: pitch, roll, and yaw flexing.

L'invention porte sur un système de navigation d'aéronef comprenant un ou des capteurs montés sur l'aile dont les signaux sont produits par la flexion de l'aile pendant le vol. Ledit système corrige ces erreurs en utilisant les mesures de la flexion actuelle de l'aile pendant un vol initial qui sont ensuite censées être valables pour tous les vols suivants et pour tout aéronef utilisant le même type de cellule. Les mesures de la flexion actuelle de l'aile définissent un facteur de correction de flexion de l'aile que le système de navigation peut régler en vol pour réduire ou éliminer les erreurs résiduelles. Le facteur de correction prend en compte les trois types possibles de flexion: en tangage, en roulis, et en lacet.

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