Quantized dynamic output feedback control for networked control systems

The problem of the quantized dynamic output feedback controller design for networked control systems is mainly dis- cussed. By using the quantized information of the system meas- urement output and the control input, a novel networked control system model is described. This model includes many network- induced features, such as multi-rate sampled-data, quantized signal, time-varying delay and packet dropout. By constructing suitable Lyapunov-Krasovskii functional, a less conservative stabi- lization criterion is established in terms of linear matrix inequalities. The quantized control strategy involves the updating values of the quantizer parameters µi(i =1 ,2)(µi take on countable sets of values which dependent on the information of the system mea- surement outputs and the control inputs). Furthermore, a numeri- cal example is given to illustrate the effectiveness of the proposed method.