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The problem of Hinfin filtering for a class of discrete-time switched systems with unknown inputs is investigated. By using a switched Lyapunov function, sufficient conditions for the solution of this problem are obtained in terms of linear matrix inequalities. Filtering is envisaged both with proportional and proportional integral observers. In addition, the results obtained in observer design are...
This note deals with the problem of full-order observer design for linear, descriptor systems with unknown input (UI) and time-varying delays. The resulting filter is of Luenberger observer type, and it guarantees that the Hinfin- norm of the system, relating the exogenous signals to the estimation error, is less than a prescribed level. Four slack matrix variables are introduced in the derivative...
This note deals with the problem of full-order observer design for linear, continuous, descriptor systems with unknown input (UI) and time-varying delays. A method to design a Hinfin observer for such systems is proposed. Both delay-dependent and delay-independent criteria are obtained
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