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Six-axis decentralized control design for spacecraft formation flying mission

Gaulocher, Sebastian and Chrétien, Jean-Pierre and Pittet, Christelle and Alazard, Daniel Six-axis decentralized control design for spacecraft formation flying mission. (2006) In: CCA 2006 : International Conference on Control Applications, 04-06 Oct 2006, Munich, Germany .

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Official URL: http://dx.doi.org/10.1109/CCA.2006.286048

Abstract

This contribution addresses the control design for the three-spacecraft formation flying interferometry mission Pegase. The operational mode considered is the high-precision nulling phase. The control design has as major objective the minimization of the variance of the controlled outputs, e.g. the optical path difference. The payload performance demands are shown to be fulfilled in spite of orbital disturbances, solar radiation pressure as well as sensor and actuator noise. Furthermore, a novel iterative algorithm is proposed, capable of designing decentralized H2-suboptimal controllers. These controllers consist of a set of individual closed loops on board the different spacecraft which only use locally available measurements, forces and torques. This approach reduces communication bandwidth and enhances robustness concerning faulty communication links. Finally, the performance loss due to decentralization is investigated.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA
French research institutions > Centre National des Etudes Spatiales - CNES
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Deposited By: Daniel Alazard

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