H-Infinity Quantized Feedback Control for Networked Control Systems with Periodic Scheduling Protocol

A novel simultaneous design scheme of H-infinity quantized feedback controller and periodic scheduling protocol for a class of networked control systems (NCSs) with bit rate constraints and time delay is proposed in this paper. A mid-tread uniform quantizers is used and the quantization error is treated as a model uncertainty by utilizing sector-bounded method. Next NCSs is modeled as a discrete-time switched system with parameter uncertainties. The procedures for H-infinity controller design under the static periodic scheduling protocol are given to maintain the asymptotic stability and robust performance of the closed-loop NCSs. Finally a simulation example is given to illustrate effectiveness of the proposed method.