Guidance Algorithm Development and 6DOF Control in Final Rendezvous Phase with Uncooperative Target

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Ghasemian Sahebi, Ali | 2010

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41318 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Saghafi, Fariborz
Abstract:
Many future space missions, will require a high level of autonomy to service, repair, refuel, reconfigure satellites. As we know there is no project that has demonstrated an actual online pathpelanning for a terminal rendezvous phase in docking maneuver, for an uncooperative tumbling target. Particularly when the target is in a noncircular orbit. Such missions require a 6DOF precise position and attitude tracking maneuver that safely can avoid collision to the target and are capable of flying around. This thesis introduce a new guidance method for vectorial approach to the target in terminal rendezvous phase and applies a Sliding Mode method for attitude tracking control with respect to the moving frame coordinate that is more useful for actual applications. Also due to trust limitations in real programs we decide to use the SPHERES nanosatellite specifications in our simulations to investigate the feasibility of the docking maneuver to a tumbling target. Simulation result shows a very good performances and confirm that guidance laws and controllers introduced here are applicable to real programs
Keywords:
Simulation ; Guidance ; Control ; Modeling Equation

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