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In this paper, we describe the controller design method for nonlinear radar gimbal stabilization system with time-delay with polytopic uncertainty. In order to consider nonlinearity of the gimbal bearing frictional torque, we represent T-S fuzzy model for the nonlinear gimbal system. And the represented model can be rewritten as Parameterized Linear Matrix Inequalities (PLMIs), that is, LMIs whose...
The problem of guaranteed cost fault-tolerant control for networked control systems (NCSs) is discussed in this paper. Based on Lyapunov stability theory and linear matrix inequality (LMI), the sufficient conditions which can meet a cost function for closed-loop networked control systems possessing robust integrity against actuator failures are given by adopting memory state feedback control law,...
For the continuous-time descriptor system, an extension of the positive real lemma is derived by constructed method. Using algebraic transformations into the second restricted equivalent description system, the state feedback controller is designed via the solvability of linear matrix inequality (LMI). Furthermore, in the conditions of controllability and observability, the positive realness of the...
Disturbance observer (DOB)-based controller design is one of the most popular methods in the field of motion control. This paper presents a design method for the disturbance observers to satisfy closed loop performance specifications, provided that the main feedback controller is known. Unlike the conventional methods, the proposed DOB design method takes into account the influence from not only disturbance...
The design of robust observer-based output feedback controller that guarantees exponential stability for linear parameter varying (LPV) systems is considered in this paper. The synthesis problem is first formulated in terms of bilinear matrix inequalities (BMIs) and then sufficient linear matrix inequalities (LMIs) with equality constraint are provided to ensure exponential stability. The controller...
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