Xia Yuanqing

Robust Stabilization for a Class of Discrete-Time Systems with Delays via Delta Operators Approach

In this paper, the problem of state feedback control for a class of time-delay systems with linear factional uncertainties is investigated via delta operator approach. Based on Lyapunov-Krasovskii functional in delta domain, a new sampling-period dependent state feedback controller is presented in terms of linear matrix inequalities (LMIs). The proposed method can unify some previous related continuous and discrete systems into the delta operator systems framework. Numerical examples are given to illustrate the effectiveness of the developed techniques.

Networked Control Systems with Different Control Inputs

In this paper, both theoretical and experimental analysis of networked control systems with different control inputs are presented. Based on the networked predictive control methods, the effects of network transmission delay and data dropout are overcome. Due to the different ways of control input ut, the stability of the different resulting closed-loop systems is also discussed in the paper. Both real-time simulations and practical experiments are presented to the difference between control inputs.