Abstract
This paper presents a discrete-time decentralized control strategy for trajectory tracking of a Mitsubishi PA10-7CE robot arm. A high order neural network is used to approximate a decentralized control law designed by the backstepping technique as applied to a block strict feedback form. The weights for each neural network are adapted online by extended Kalman filter training algorithm. The motion of each joint is controlled independently using only local angular position and velocity measurements. The stability analysis for closed-loop system via Lyapunov theory is included. Finally, the simulations results show the feasibility of the proposed scheme.
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