Neural Network Control of Robot Manipulators and Nonlinear Systems
Neural Network Control of Robot Manipulators and Nonlinear Systems
Simple and conditioned adaptive behavior from Kalman filter trained recurrent networks
Neural Networks - 2003 Special issue: Advances in neural networks research IJCNN'03
Decentralized adaptive recurrent neural control structure
Engineering Applications of Artificial Intelligence
A learning algorithm for continually running fully recurrent neural networks
Neural Computation
Modelling and Control of Mini-Flying Machines
Modelling and Control of Mini-Flying Machines
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Robust and adaptive backstepping control for nonlinear systems using RBF neural networks
IEEE Transactions on Neural Networks
Discrete-Time Adaptive Backstepping Nonlinear Control via High-Order Neural Networks
IEEE Transactions on Neural Networks
High-order neural network structures for identification of dynamical systems
IEEE Transactions on Neural Networks
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Control design for helicopters is a complicated and challenging problem due to the strong inter-couplings and nonlinear uncertainties in the system model. This paper deals with the decentralized control problem for the output trajectory tracking in a Quanser 2 degree of freedom (DOF) helicopter. High order neural network (HONN) is an important technique to approximate non-linearities in the model. Two different discrete-time schemes with a decentralized structure are used. Neural backstepping and neural sliding mode block control techniques are considered in order to control pitch and yaw positions. On one hand, backstepping control divides the whole system into two subsystems which are used to track the pitch and yaw references respectively. Real and virtual controls are approximated by HONNs. On the other hand, block control technique is applied to HONNs which can identify the system helicopter model. Each discrete-time high order neural network is trained on-line with an extended Kalman filter based algorithm. Without the previous knowledge of the plant parameters neither its model, we show via simulations the good performance of both strategies. The block control technique presents slightly better results than backstepping algorithm.