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Improved value iteration for nonlinear tracking control with accelerated learning
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DOI：10.1002/rnc.7183.png)
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摘要
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In this article, an adaptive critic scheme with a novel performance index function is developed to solve the tracking control problem, which eliminates the tracking error and possesses the adjustable convergence rate in the offline learning process. Under some conditions, the convergence and monotonicity of the accelerated value function sequence can be guaranteed. Combining the advantages of the adjustable and general value iteration schemes, an integrated algorithm is proposed with a fast guaranteed convergence, which involves two stages, namely the acceleration stage and the convergence stage. Moreover, an effective approach is given to adaptively determine the acceleration interval. With this operation, the fast convergence of the new value iteration scheme can be fully utilized. Finally, compared with the general value iteration, the numerical results are presented to verify the fast convergence and the tracking performance of the developed adaptive critic design.
Keyword:
adaptive critic designs
adaptive dynamic programming
fast convergence
nonlinear tracking control
value iteration
期刊
IF:
3.2
论文数:
7.0K
被引数:
1.4W
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