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This paper is concerned with the problem of full-order robust L2-Linfin estimation for continuous-time polytopic uncertain time-delay systems. An improved L2-Linfin performance criterion is provided in terms of linear matrix inequalities. It exhibits a kind of decoupling between the Lyapunov matrices and the system dynamic matrices compared with the existing result. Then two sufficient conditions...
The tracking problem for continuous-time systems with multiple input delays is investigated. Via Krein space method, the problem with multiple input delays is dual to that of fixed-lag smoothing for a stochastic model without delay. The optimal tracking controller is then designed by computing the gain matrices of the fixed-lag smoothing
A strategy for robust mixed H2/Hinfin filtering problem, applied to a class of linear continuous-time systems containing linear fractional uncertainties is presented. By introducing some slack variables to the evaluation of robust H2and Hinfin performances, a less-conservative linear matrix inequality (LMI) based sufficient condition is obtained as compared to the existing characterizations. Also,...
New LMI criteria for L2 - Linfin and Hinfin performances of continuous-time uncertain systems are proposed, which keep the Lyapunov matrices out of any product with the system matrices. When used in robust mixed L2 - Linfin and filtering, the design conservatism is reduced since the restriction is removed that both L2 - Linfin and Hinfin performances are enforced by a single closed-loop Lyapunov...
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