Optimal Eigenstructure Assignment for Multiple Design Objectives

This paper considers the application of eigenstructure assignment in the design of multi-criteria controllers with a gradient-based numerical optimization procedure using analytically derived gradients. Emphasis is placed on the design of output feedback control laws which possess certain additional desirable properties. By allowing the closed-loop eigenvalues to be selected (where appropriate) from regions of the complex plane extra design freedom is introduced which may be used to achieve, for example, robust eigenvalue assignments and a low norm control law more easily.