DESIGN AND APPLICATION OF MULTIVARIABLE ROBUST OPTIMAL SYSTEMS

In this paper, a design algorithm for quantitative robust optimal cont rol of uncertain multivariable feedback systems is developed. By use o f the frequency-domain approach, the two-degree-of-freedom Wiener-Hopf optimal control method and the quantitative feedback theory are emplo yed to derive the linear quadratic optimal system design with quantita tive performance robustness. Two frequency-dependent weighting matrice s are shaped and two-degree-of-freedom compensators are designed to ac hieve quantitative robust optimal control. The proposed design algorit hm is then applied to an AFTI/F-16 flight control system design to ill ustrate the design algorithm. (C) 1998 John Wiley & Sons, Ltd.