Abstract A novel method is proposed for spacecraft deorbit trajectory tracking in low-Earth orbit using model predictive control to command changes in aerodynamic drag. Compared to previous approaches in the literature, the proposed method offers more direct control over actuator usage and is easier to tune. Most importantly, the proposed method is able to leverage the most recent and accurate knowledge of atmospheric density to improve tracking performance in a simple and computationally efficient way. Proof-of-concept simulations of the control strategy applied to targeted reentry demonstrate these advantages.
Highlights The trajectory of a spacecraft can be controlled by modulating aerodynamic drag. Atmospheric density prediction errors push the spacecraft off course. A model predictive control policy is proposed to track drag-modulated trajectories. Updated density information is leveraged to improve tracking performance. The proposed controller is tested in simulation with noisy density information.
Model predictive tracking of spacecraft deorbit trajectories using drag modulation
Acta Astronautica ; 202 ; 670-685
2022-10-29
16 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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