Dynamic sliding mode controller design for networked control systems with random packet loss and event driven quantisation

Abstract

This study addresses the sliding mode controller design for a networked control system with quantisation and random packet loss. A logarithmic quantiser is adopted in order to guarantee the coarsest density and decrease the possibility of unsuccessful transmission. The quantisation process is designed as an event driven to reduce the amount of data to be transmitted over the channel. A sliding mode controller is adopted to suppress the measurement noise and error caused by the features of a wireless communication channel. The existence of quasi-sliding mode in the sense of mean-square and closed loop stability in the sense of mean square are claimed. Simulations are carried out to support the algorithms proposed.