Abstract
In this paper, a design method of control systems which achieves disturbance rejection for the multiple-input systems using a dual observer is proposed. This method is extended our earlier work to more general case and has the following advantages.
(1) An unobservable subspace of arbitrary dimension in the state space could be made by dual observer.
(2) In strictly multiple-input systems, poles of the unobservable subspace could be assigned arbitrarily.
Therefore, according to the construction of the unobservable subspace using this method, the disturbance rejecting systems could be constructed. In this regards, the validity of constructed control system is shown by the numerical simulations for 3-mass spring system.
