The attitude stabilization of a spacecraft using thrusters is considered from a practical point of view, i.e., when actuator constraints, uncertainties and failures, measurement noise, fuel consumption, and inertia matrix uncertainty are considered. A variable structure controller based on sliding modes is obtained first, which guarantees global exponential stability under actuator constraints, uncertainties, and failures. The design is based on a continuous average-proportional torque selection function and a set of feasible sliding surfaces, which may be adapted to improve performance. Exponential convergence towards ultimate bounds is guaranteed when all other practical issues arise.
Practical stabilization in attitude thruster control
IEEE Transactions on Aerospace and Electronic Systems ; 41 , 2 ; 584-598
2005
15 Seiten, 23 Quellen
Aufsatz (Zeitschrift)
Englisch
Practical Stabilization in Attitude Thruster Control
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