Procédé et appareil de calibration des gyromètres d'un satellite stabilisé 3-axes

The procedure involves receiving position and attitude information from solar sensors (1), terrestrial and stellar sensors (3A,B) and gyroscopic meters (5). After treatment (21) the data and other orbital information (22) is processed by a Kalman filter which produces command signals to nozzle actua...

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Bibliographic Details
Main Authors PIERRE-YVES RENAUD, MICHEL SGHEDONI, ISSAM-MAURICE ACHKAR, PIERRE GUILLERMIN
Format Patent
LanguageFrench
Published 03.02.1995
Edition5
Subjects
AIRCRAFT
AVIATION
CONTROLLING
COSMONAUTICS
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PERFORMING OPERATIONS
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
REGULATING
SURVEYING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TESTING
TRANSPORTING
VEHICLES OR EQUIPMENT THEREFOR
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Summary:The procedure involves receiving position and attitude information from solar sensors (1), terrestrial and stellar sensors (3A,B) and gyroscopic meters (5). After treatment (21) the data and other orbital information (22) is processed by a Kalman filter which produces command signals to nozzle actuators (6). Since position and attitude information from earth may be lost at critical moments any constant gyroscopic drift must be regularly determined. This is done by using the command system to compare in real time attitude estimates from the gyroscopes with those derived from the other sensors, storing constant amounts of gyroscopic drift.
Bibliography:Application Number: FR19920012952