抄録
This paper is concerned with presenting an approach of designing a system observer for a linear multivariable discrete unknown system of an unknown order, based on a view of underlying stagnant system. The system observer can construct simultaneously both estimates of state and estimates of parameters of the original unknown system. Several special features are shown below;
(1) Output stagnant system arises when output difference between the system observer and the original system is forced to go to zero in finite deadbeat convergence time. That mentions partly that at the same time the identified transfer function of original system through calculated from the state of system observer becomes equal the real transfer function of original system.
(2) Particularly at the time when identiability condition holds, there exists a class of state stagnant system such that the state of system observer converges to the modified form of original system.
