On delayed observers for linear systems with unknown inputs
Hadjicostis, Christoforos N.
SourceProceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
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We present a method for constructing reduced-order state observers for linear systems with unknown inputs. Our design provides a characterization of observers with delay, which eases the established necessary conditions for existence of unknown input observers with zero-delay. In order to obtain the observer parameters, we develop a systematic design procedure that is quite general in that it encompasses the design of full-order observers via appropriate choices of design matrices. © 2005 IEEE.