Feedforward control for oscillatory signal tracking using Hilbert transform
Journal article, 2019

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.

Oscillation

Hilbert transform

Vibration

Feedforward control

Signal tracking

Author

Ilker Erdem

Chalmers, Industrial and Materials Science, Production Systems

Gauti Asbjörnsson

Chalmers, Industrial and Materials Science, Product Development

Henrik Kihlman

Prodtex AB

European Journal of Control

0947-3580 (ISSN)

Subject Categories

Control Engineering

Signal Processing

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1016/j.ejcon.2019.06.002

More information

Latest update

11/3/2019