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This paper deals with the problem of fault estimation for linear systems under feedback control. The main contribution is the development of a new method to simultaneously design two different systems as estimator and controller, which can achieve better detection performance and control performance compared with the known results. Low frequency faults and high frequency disturbances are considered,...
This paper studies the robust control for a class of nonlinear uncertain chaotic systems with time-delay by using Lyapunov stability theory and the linear matrix inequality (LMI) approach. A sufficient condition for the existence of the time-delay feedback controller is established, and a sufficient condition for the existence of the state observer and the observer-based robust controller is also...
This paper presents a method to design excitation controller. The main results rely on extended state observer (ESO) and linear matrix inequalities (LMI) optimization which can handle various closed-loop specifications, such as a given set of admissible initial states, asymptotic stability of the saturating closed-loop system, and Instability, on different channels. The dynamic feedback linearization...
In our previous study, we have proposed a design method of a static feedback gain for a nonparametric model described by a plant response data. The magnitudes of the sensitivity and complementary sensitivity functions are shaped. An appropriate gain can be obtained by solving a linear matrix inequality. In this paper, the usefulness is shown by applying the method to an experimental setup where a...
In this paper, a delay dependent robust fuzzy output feedback control is considered for time-delay chaotic systems with disturbances. Observer based controller is constructed by the T-S fuzzy model. The control algorithm is proposed to guarantee the Hinfin performance of the time-delay chaotic systems. Linear matrix inequality (LMI) method is used to obtain controller and observer gains. To find the...
This paper aims to design an innovative observerbased reliable controller for networked control system(NCS). The state and sensor failures are estimated as the controller's input. The gains of Observer and observer-based feedback controller are solved via the linear matrix inequality (LMI) technology. An illustrative example is given to show the reliable output can works well even if the sensor failures...
This paper is devoted to the problem of global stabilization by output-feedback for a class of nonlinear systems with uncertain control coefficients, stable zero-dynamics and linearly unmeasured states dependent growth. By first introducing two kinds of appropriate state transformations, the original system is converted into the new system with deterministic virtual control coefficients and the separated...
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