Design of Optimal Low-Sensitivity Controllers with Prespecified Eigenvalues: Application to Aircraft Lateral Motion

This paper considers the design of optimal controller to an aircraft performing a lateral maneuver. The closed-loop system has a prescribed set of eigenvalues. Moreover, the closed-loop system is optimal with respect to quadratic performance index and/or its trajectory sensitivity with respect to small variations in the plant parameters from their nominal values. The predicted responses of the resulting closed-loop system are determined for nominal and perturbed plant parameters. The results show that the closed-loop systen preserves the achieved properties even in the presence of small deviations in system parameters.