Detection of Linear Frequency Modulated Flash Visual Evoked Potential by Fractional Fourier Transform

DOI

10.2991/aiie-15.2015.117How to use a DOI?

Keywords

Visual Evoked Potential (VEP); Linear Frequency Modulated signal (LFM); Fractional Fourier Transform (FRFT); wigner distribution

Abstract

Linear frequency modulated visual evoked potential was explored in this paper, the stimulator, experimental paradigm, detection and analysis methods of visual evoked potential are generalized. The steady-state visual evoked potential can be seen as an specialization of linear frequency modulated visual evoked potential, which contains a set of linear frequency modulated signals corresponding to the stimulator, as well as steady-state visual evoked potential containing the fundamental and higher sine harmonics consistent with stimulus signal. In this work, time-frequency analysis methods, especially Fractional Fourier Transform which has a good focusing property for linear frequency modulated signals were used to detect the parameters of VEP evoked by LFM flash signal. The effectiveness of Fractional Fourier Transform for linear frequency modulated visual evoked potential shows feasibility and possibility for applications in brain-computer interface.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - S.L. Peng
AU  - Y. Xin
AU  - F.Y. Tian
AU  - S.K. Liu
PY  - 2015/07
DA  - 2015/07
TI  - Detection of Linear Frequency Modulated Flash Visual Evoked Potential by Fractional Fourier Transform
BT  - Proceedings of the 2015 International Conference on Artificial Intelligence and Industrial Engineering
PB  - Atlantis Press
SP  - 429
EP  - 432
SN  - 1951-6851
UR  - https://doi.org/10.2991/aiie-15.2015.117
DO  - 10.2991/aiie-15.2015.117
ID  - Peng2015/07
ER  -