Implementation of Three Axis Attitude Controllers for Evaluation of a Micro-gravity Satellite Simulator

In this paper the performance of a three Degrees Of Freedom simulator is evaluated. This platform is considered as an important instrument generally used in performance tests of spacecraft attitude determination and control subsystem on the ground. A hemispherical air bearing is used to provide micr...

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Published inفصلنامه علوم و فناوری فضایی Vol. 5; no. 2; pp. 59 - 68
Main Authors A. H. Tavakkoli, A. Kalhor, S. M. M. Dehghan
Format Journal Article
LanguagePersian
Published Aerospace Research Institute 01.07.2012
Subjects
air bearing
attitude determination and control
attitude maneuver
attitude sensor
reaction wheel
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Summary:In this paper the performance of a three Degrees Of Freedom simulator is evaluated. This platform is considered as an important instrument generally used in performance tests of spacecraft attitude determination and control subsystem on the ground. A hemispherical air bearing is used to provide micro gravity condition. Reaction wheels produce required control torques and an integrated sensor is used for attitude determination. Commanding and visualization of the platform in monitoring station are provided by a wireless LAN. PD, QEF and LQR controllers are designed and implemented for slew maneuver to show the ability of the simulator. The desired attitude accuracy is obtained using these controllers. The test results verify the designed controllers and show the ability and functionality of the system, as a simulator for evaluating attitude controllers.
ISSN:2008-4560
2423-4516