Abstract
This paper presents a method for constructing an observer at some control station of a linear discrete-time decentralized control system. It is assumed here that there are no information exchanges among the stations and the system is observable at the considered station.
By using the algorithm proposed in this paper, a minimal-order unbiased observer is constructed while the estimation error is redused to zero with a minimal time. Also, it is clarified that this is a minimal-dimensional and minimal-time observer at the considered station.
