A flatness-based predictive controller for six-degrees of freedom spacecraft rendezvous
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912193105100800 |
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| author | Sanchez, Julio C. Gavilan, Francisco Vazquez, Rafael Louembet, Christophe |
| author_facet | Sanchez, Julio C. Gavilan, Francisco Vazquez, Rafael Louembet, Christophe |
| contents | This work presents a closed-loop guidance algorithm for six-degrees of freedom spacecraft rendezvous with a passive target flying in an eccentric orbit. The main assumption is that the chaser vehicle has an attitude control system, based on reaction wheels, providing the necessary torque to change its orientation whereas the number of thrusters is arbitrary. The goal is to design fuel optimal maneuvers while satisfying operational constraints and rejecting disturbances. The proposed method is as follows; first, the coupled translational and angular dynamics are transformed to equivalent algebraic relations using the relative translational states transition matrix and the attitude flatness property. Then, a direct transcription method, based on B-splines parameterization and discretization of time continuous constraints, is developed to obtain a tractable static program. Finally, a Model Predictive Controller, based on linearization around the previously computed solution, is considered to handle disturbances. Numerical results are shown and discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_10436 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A flatness-based predictive controller for six-degrees of freedom spacecraft rendezvous Sanchez, Julio C. Gavilan, Francisco Vazquez, Rafael Louembet, Christophe Systems and Control This work presents a closed-loop guidance algorithm for six-degrees of freedom spacecraft rendezvous with a passive target flying in an eccentric orbit. The main assumption is that the chaser vehicle has an attitude control system, based on reaction wheels, providing the necessary torque to change its orientation whereas the number of thrusters is arbitrary. The goal is to design fuel optimal maneuvers while satisfying operational constraints and rejecting disturbances. The proposed method is as follows; first, the coupled translational and angular dynamics are transformed to equivalent algebraic relations using the relative translational states transition matrix and the attitude flatness property. Then, a direct transcription method, based on B-splines parameterization and discretization of time continuous constraints, is developed to obtain a tractable static program. Finally, a Model Predictive Controller, based on linearization around the previously computed solution, is considered to handle disturbances. Numerical results are shown and discussed. |
| title | A flatness-based predictive controller for six-degrees of freedom spacecraft rendezvous |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2501.10436 |