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Design of dynamic Petri recurrent-fuzzy-neural-network scheme for mobile robot tracking control

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2 Author(s)
Rong-Jong Wai ; Dept. of Electr. Eng., Yuan Ze Univ., Chungli ; Chia-Ming Liu

This study focuses on the design of a dynamic Petri recurrent-fuzzy-neural-network (DPRFNN) control for the path tracking of a nonholonomic mobile robot. In the DPRFNN, the concept of a Petri net (PN) and the recurrent frame of internal feedback loops are incorporated into a traditional fuzzy neural network (FNN) to alleviate the computation burden of parameter learning and to enhance the dynamic mapping of network ability. Moreover, the supervised gradient descent method is used to develop the online training algorithm for the DPRFNN control. In order to guarantee the convergence of path tracking errors, analytical methods based on a discrete-type Lyapunov function are proposed to determine varied learning rates for DPRFNN. In addition, the effectiveness of the proposed DPRFNN control scheme under different moving paths is verified by numerical simulations, and its superiority is indicated in comparison with FNN, recurrent FNN (RFNN) and Petri FNN (PFNN) control systems.

Published in:

Neural Networks, 2008. IJCNN 2008. (IEEE World Congress on Computational Intelligence). IEEE International Joint Conference on

Date of Conference:

1-8 June 2008