Journal
EUROPEAN JOURNAL OF CONTROL
Volume 50, Issue -, Pages 41-50Publisher
ELSEVIER
DOI: 10.1016/j.ejcon.2019.06.002
Keywords
Feedforward control; Signal tracking; Hilbert transform; Oscillation; Vibration
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Funding
- Swedish Research Agency VINNOVA
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This paper presents feedforward control for oscillatory signal tracking using Hilbert transform. The proposed controller utilizes Hilbert transform and analysis techniques to determine the signal's amplitude, frequency, and phase. By using the frequency response of the linear time-invariant process model, an amplified and phase-shifted feedforward signal is reconstructed. The proposed controller also analyzes the system response to determine the differences from the model to modify the feedforward signal. Simulation experiments with multicomponent stationary, amplitude-, and frequency-modulated signals are also conducted. The results show that using an amplified and phase-shifted signal determined by Hilbert analysis can enable an effective tracking performance. (C) 2019 European Control Association. Published by Elsevier Ltd. All rights reserved.
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