Early-warning satellite attitude maneuvers with hybrid control

The main contribution of this paper is that, to improve the performance properties of early-warning satellite controlled by standard adaptive back-stepping controller, a hybrid control approach is developed to guarantee the stability of system in global sense while improving control performance of early-warning satellite attitude manoeuvre problem in a local region. Firstly, using the adaptive back-stepping controller to guarantee the stability of the system, then, the system will be treated as an LPV system, using LPV control method to improve the performance properties of the early-warning satellite. a new computationally efficient LPV synthesis method using SOS was proposed. The effectiveness of the proposed control technique is shown in simulations.