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A Novel Extreme Learning Control Framework of Unmanned Surface Vehicles | IEEE Journals & Magazine | IEEE Xplore

A Novel Extreme Learning Control Framework of Unmanned Surface Vehicles


Abstract:

In this paper, an extreme learning control (ELC) framework using the single-hidden-layer feedforward network (SLFN) with random hidden nodes for tracking an unmanned surf...Show More

Abstract:

In this paper, an extreme learning control (ELC) framework using the single-hidden-layer feedforward network (SLFN) with random hidden nodes for tracking an unmanned surface vehicle suffering from unknown dynamics and external disturbances is proposed. By combining tracking errors with derivatives, an error surface and transformed states are defined to encapsulate unknown dynamics and disturbances into a lumped vector field of transformed states. The lumped nonlinearity is further identified accurately by an extreme-learning-machine-based SLFN approximator which does not require a priori system knowledge nor tuning input weights. Only output weights of the SLFN need to be updated by adaptive projection-based laws derived from the Lyapunov approach. Moreover, an error compensator is incorporated to suppress approximation residuals, and thereby contributing to the robustness and global asymptotic stability of the closed-loop ELC system. Simulation studies and comprehensive comparisons demonstrate that the ELC framework achieves high accuracy in both tracking and approximation.
Published in: IEEE Transactions on Cybernetics ( Volume: 46, Issue: 5, May 2016)
Page(s): 1106 - 1117
Date of Publication: 30 April 2015

ISSN Information:

PubMed ID: 25955859

Funding Agency:


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