通讯受限情形下非线性随机系统的鲁棒滤波

his paper investigates the H∞ filtering problem for a class of nonlinear stochastic systems over limited capacity channel. The considered plant is described by a class of It^o stochastic time-delay systems with Lipschitz nonlinearities, and the output measurements are subject to logarithmic quantization before being transmitted in the network communication link. A new effective mathematical transformation is proposed to deal with the logarithmic quantization function. A H-infinity filter is designed for the stochastic system under consideration by employing the quantized output measurements. A numerical example is provided to illustrate the effectiveness of the proposed filtering technique in this paper.