A REDUCED-ORDER CAUSAL OBSERVER-BASED CONTROLLER FOR SINGULAR SYSTEMS

The application of a causal dynamical observer-based controller for a linear time-invariant square singular system is considered. Sufficient conditions which constructively yield an approach for obtaining a red uced-order causal compensator that stabilizes the system, eliminates i mpulsive modes and estimates the system's state have been established. In particular, the present approach establishes a clear and useful re lation between the structure and the dimension of a minimal order comp ensator for state-space and singular systems, and generalizes the sepa ration property in an obvious way.