15th Triennial World Congress of the International Federation of Automatic Control
  Barcelona, 21–26 July 2002 
USING CHAOS TO IMPROVE GENERALIZATION IN SMART NN CONTROL DESIGN
Cong Wang*,1 Guanrong Chen*,2 Shuzhi S. Ge**,3
* Department of Electronic Engineering
City University of Hong Kong, Hong Kong SAR, P. R. China
** Department of Electrical & Computer Engineering
National University of Singapore, Singapore 117576
1 E-mail: cwang@ee.cityu.edu.hk
2 gchen@ee.cityu.edu.hk
3 E-mail: elegesz@nus.edu.sg

In this paper, a smart NN control scheme is proposed. This scheme is designed such that the current control action can utilize the knowledge that the NN learned from the past control process. A chaotic signal is employed as the reference signal to improve the generalization ability of the NN in the training phase of the scheme, where the complex chaotic signal offers much more information for NN learning thereby significantly improving the efficiency of the NN generalization. Compared with most of the adaptive neural controllers, the smart neural controller (in the operational phase) is a static and low-order controller, and thus needs much less computational resources, and is more feasible in practical implementation. Simulation studies are included to demonstrate the effectiveness of the new control scheme.
Keywords: Neural network (NN), smart NN control, generalization, chaos
Session slot T-Th-M03: Advances in Adaptive Control/Area code 3b : Adaptive Control and Tuning