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Abstract:
With adoption of the sliding mode, the super twisting algorithm (STA) based sliding-mode differentiator proposed by Levant provides good filtering ability and robustness to specific noises interference. A flexible and effective parameter tuning algorithm for this differentiator is proposed in this work. In particular, the principle of the time linear transformation and the coordination transformation is adopted to execute the normalization processing for any given inputs, and meanwhile the key parameters can be determined directly according to the frequency and amplitude of the signals. The characteristics of the differentiator based on the proposed parameter tuning algorithm are shown from both the frequency and the time domains’ analysis. The simulation results show that the proposed algorithm can conveniently and effectively provide a set of parameters for the differentiator to fulfil the accuracy and robustness. Further, the differentiator via the proposed parameter tuning algorithm is applied to the flight environment simulation control system and the experimental results verify the effectiveness of the proposed algorithm and show its potential engineering application value. © 2023 South China University of Technology. All rights reserved.
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Control Theory and Applications
ISSN: 1000-8152
CN: 44-1240/TP
Year: 2023
Issue: 10
Volume: 40
Page: 1831-1838
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 4
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