Design of linear functional observers for time-delay systems of the neutral-type
Fernando, Tyrone and Trinh, Hieu 2006, Design of linear functional observers for time-delay systems of the neutral-type, International journal of information and systems sciences, vol. 2, no. 3, pp. 398-420.
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This paper presents the design of reduced-order linear functional observers for a class of linear time-delay systems of the neutral-type. The type of the observer proposed in this paper is without internal delay and its order is the same as the number of linear functions to be estimated. First, conditions for the existence of the reduced-order functional observers that are capable of asymptotically estimating any given function of the state vector are derived. Then, based on the newly derived existence conditions, a procedure is given for the determination of the observer parameters. The results derived in this paper include a range of linear systems and extend some existing results of linear functional observers to linear neutral delay systems. A numerical example is given to illustrate the design procedure.
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