System for the stabilization of an object mounted on a...

Details System for the stabilization of an object mounted on a... System for the stabilization of an object mounted on a...

G - Physics

01

C

G01C 21/18 (2006.01) B63B 39/00 (2006.01) B63B 49/00 (2006.01) H01Q 1/18 (2006.01)

Patent

CA 2295499

The invention concerns an enhanced system for the stabilization of an object with reference to a moving platform. The invention is in particular suitable for the stabilization of a shipbome optical search sensor. The system comprises a stabilization platform and a regulator. According to the invention, the regulator calculates control signals for the stabilization platform on the basis of a combination of absolute ship's angular position signals and signals produced by rate gyro systems mounted on the stabilization platform. Thus, disturbances caused by flexure of the ship's structure and the stabilization platform are effectively compensated for. Said signals are preferably combined by frequency-dependent weighting.

L'invention concerne un système amélioré de stabilisation d'un objet par rapport à une plate-forme mobile. L'invention se prête particulièrement à la stabilisation d'un capteur de recherche optique embarqué. Le système comprend une plate-forme de stabilisation et un régulateur. Selon l'invention, le régulateur calcule des signaux de commande pour la plate-forme de stabilisation en fonction d'une combinaison de signaux désignant la position angulaire absolue du bateau et de signaux produits par des systèmes gyroscopiques montés sur la plate-forme de stabilisation. Ainsi, les perturbations liées à la courbure de la structure du bateau et à la plate-forme de stabilisation sont corrigées de manière efficace. Lesdits signaux sont de préférence combinés par une pondération variant selon la fréquence.

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