Memoryless feedback control of discrete-time systems with multiple time-varying actuator delays

2017 ◽  
Author(s):  
Xuefei Yang ◽  
Bin Zhou
Keyword(s):  
Feedback Control ◽  
Discrete Time ◽  
Multiple Time ◽  
Time Varying ◽  
Discrete Time Systems ◽  
Time Systems

Observer-Based H∞ Feedback Control for Arbitrarily Time-Varying Discrete-Time Systems With Intermittent Measurements and Input Constraints

2012 ◽  
Vol 134 (6) ◽  
Author(s):  
Hui Zhang ◽  
Yang Shi
Keyword(s):  
Feedback Control ◽  
Control Problem ◽  
Discrete Time ◽  
Sufficient Conditions ◽  
Linear Matrix ◽  
Time Varying ◽  
Discrete Time Systems ◽  
Intermittent Measurements ◽  
Time Systems ◽  
Intermittent Measurement

In this paper, we investigate the observer-based H∞ feedback control problem for discrete-time systems subject intermittent measurements and constrained control inputs. To characterize the practical scenario of the intermittent measurement phenomenon, we model it using a stochastic Bernoulli approach. We assume that the control action is constrained to be below a prescribed level. Sufficient conditions are obtained for the observer-based H∞ feedback control problem. The estimator and the controller are derived by solving a linear matrix inequality (LMI)-based optimization problem. Moreover, the proposed method is extended to systems with arbitrarily time-varying parameters within a polytope with unknown vertices. Three examples are given to illustrate the effectiveness and efficacy of the proposed method.

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