Quantized Synchronization of Chaotic Neural Networks With Scheduled Output Feedback Control

In this paper, the synchronization problem of master–slave chaotic neural networks with remote sensors, quantization process, and communication time delays is investigated. The information communication channel between the master chaotic neural network and slave chaotic neural network consists of several remote sensors, with each sensor able to access only partial knowledge of output information of the master neural network. At each sampling instants, each sensor updates its own measurement and only one sensor is scheduled to transmit its latest information to the controller’s side in order to update the control inputs for the slave neural network. Thus, such communication process and control strategy are much more energy-saving comparing with the traditional point-to-point scheme. Sufficient conditions for output feedback control gain matrix, allowable length of sampling intervals, and upper bound of network-induced delays are derived to ensure the quantized synchronization of master–slave chaotic neural networks. Lastly, Chua’s circuit system and 4-D Hopfield neural network are simulated to validate the effectiveness of the main results.

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