Attitude regulation with bounded control in the presence of large disturbances with bounded moving average

The attitude regulation problem with bounded control for a class of satellites in the presence of large disturbances, with bounded moving average, is solved using a Lyapunov-like design. The analysis and design approaches are introduced in the case in which the underlying system is an integrator and are then applied to the satellite attitude regulation problem. The performance of the resulting closed-loop systems are studied in detail and it is shown that trajectories are ultimately bounded despite the effect of the persistent disturbance. Simulation results on a model of a small satellite subject to large, but bounded in moving average, disturbances are presented

L1 Adaptive Attitude Control For A Picoscale Satellite Test Bed

Smaller and more agile space assets, such as picoscale satellites, have become one of the promising focuses for space missions because of the benefits in cost reduction, enhanced flexibility, survivability, and reliability. A simple magnetic torque coil-based attitude control system is proposed here for a one unit picoscale satellite test bed using an L1 adaptive controller. A pointing accuracy of 2 deg is achieved in both a one-axis ground test bed and three-axis control simulation