Decentralized H-infinity-controller design

In this paper, a decentralized H-infinity-controller design problem for two -channel systems is considered. A parametrization of all decentralized stab le factors is proposed. With the parametrization of all decentralized stabl e factors, the class of decentralized compensators is parametrized. The dec entralized H-infinity-controller design procedure is built upon the J-spect ral factorization approach to H-infinity-control. A class of decentralized suboptimal controllers satisfying the H-infinity norm bound is parametrized . A design procedure for decentralized suboptimal H-infinity-controllers is suggested. (C) 1999 Elsevier Science Ltd. All right reserved.