Optimised Eigenstructure Assignment by Ant System And LQR Approaches

Recently, it has been verified that applications of metaheuristics for finding optimal or suboptimal solutions for NP-hard optimisation problems is one of the most promising research fields. Using the ant system metaheuristic, this paper proposes a new design method for state feedback control law which simultaneously achieves the linear quadratic stabilisation and an eigenstructure assignment corresponding to partial closed-loop eigenvalues and eigenvectors. As a typical application of the method, flight control design for an aircraft state space model is presented to illustrate the application of the Ant System and LQR method, the purpose of which is to find a state feedback controller that leads to a specified eigenstructure assignment.