Robust quantized output feedback control for uncertain discrete time-delay systems with saturation nonlinearity

摘要

This paper is concerned with robust quantized output feedback control problems for uncertain discrete-time systems with time-varying delay and saturation nonlinearity. It is assumed that the quantizer is of the saturating type. A new framework for the local boundedness stabilization of quantized feedback systems is developed. Attention is focused on finding a quantized static output feedback controller such that all trajectories of the resulting closed-loop system starting from an admissible initial basin converge to a bounded region strictly within the initial basin. A quantized feedback controller is proposed, which comprises output feedback and the exogenous signal parts. Simulation examples are given to illustrate the effectiveness and advantage of the proposed methods. Copyright (C) 2014 John Wiley & Sons, Ltd.