Chaos Synchronization Using Adaptive Dynamic Neural Network Controller with Variable Learning Rates

Chih-Hong Kao, Chun-Fei Hsu, Chih-Hu Wang and Hon-Son Don

Mathematical Problems in Engineering, 2011, vol. 2011, 1-20

Abstract:

This paper addresses the synchronization of chaotic gyros with unknown parameters and external disturbance via an adaptive dynamic neural network control (ADNNC) system. The proposed ADNNC system is composed of a neural controller and a smooth compensator. The neural controller uses a dynamic RBF (DRBF) network to online approximate an ideal controller. The DRBF network can create new hidden neurons online if the input data falls outside the hidden layer and prune the insignificant hidden neurons online if the hidden neuron is inappropriate. The smooth compensator is designed to compensate for the approximation error between the neural controller and the ideal controller. Moreover, the variable learning rates of the parameter adaptation laws are derived based on a discrete-type Lyapunov function to speed up the convergence rate of the tracking error. Finally, the simulation results which verified the chaotic behavior of two nonlinear identical chaotic gyros can be synchronized using the proposed ADNNC scheme.

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:701671

DOI: 10.1155/2011/701671

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