Quantized H filtering for networked persistent dwell-time switched piecewise-affine systems.

In this study, the problem of quantized H filtering is addressed for networked switched piecewise-affine systems, in which the switching mechanism obeys the persistent dwell-time constraint. To process the measurement output and schedule the transmission sequence for alleviating the burden of the limited communication channel, a logarithmic quantizer is employed, which can further improve the bandwidth utilization in networked switched systems. On the basis of state-space division, the objective is to design a mode-dependent and region-dependent filter that ensuresthe filtering error system is globally uniformly exponentially stable and meets an H performance. By using the mode-dependent Lyapunov function approach and employing appropriate decoupling methods, sufficient conditions for obtaining desired filter gains are deduced. Eventually, two illustrated examples are given to demonstrate the effectiveness of our proposed method.