抄録
In this paper, a new method is developed for the design of an observer for the descriptor systems. At first, the observable (in the sense of Rosenbrock) descriptor system can be transformed into a regular state-space system using the concept of the generalized matrix inverse.
Secondly, the minimal order observer for the obtained regular system is constructed by using Gopinath's method. The constructed observer is of lower order than those in the literature.
Finally, if such an observer is used jointly with the controller, it is shown that the separation property, well-known in the regular theory, also holds.
