A Flexible Spacecraft Attitude Recovery using Feedback Linearization Approach

S. Tafazoli and K. Khorasani (Canada)


Attitude Recovery, Feedback Linearization, ZeroDynamics


The problem of Attitude Recovery of flexible spacecraft is investigated using the feedback linearization control approach. The attitude and flexible dynamics equations for a class of spacecraft is presented. The resulting nonlinear and coupled equations of the system are implemented into a high-fidelity, user-friendly simulation environment. The simulator is used for the investigation of attitude recovery of spacecraft using the nonlinear feedback linearization approach, resulting in a linear zero dynamics which is shown to be asymptotically stable for a simple representative cases. A number of simulation results are included to demonstrate the potential and capabilities of the proposed modeling and control methodologies.

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