NDLI: Extraction of superimposed evoked potentials by combination of independent component analysis and cumulant-based matched filtering

Content Provider	IEEE Xplore Digital Library
Author	Cichocki, A. Gharieb, R.R. Mourad, N.
Copyright Year	2001
Description	Author affiliation: RIKEN, Brain Sci. Inst., Saitama, Japan (Cichocki, A.)
Abstract	A novel approach is proposed for the efficient separation of mixed evoked potentials (EPs) presented simultaneously by different stimuli. We first apply a robust independent component analysis (ICA) approach to the observed sensor signals for the separation of the superimposed EP signals. Next, the desired EP components are estimated by matched-filtering of the separated signals. The impulse response of such a matched filter can be computed based on third-order cumulants of the filter input signal. Therefore, due to the tolerance of the third-order cumulants to both Gaussian and any symmetrically distributed non-Gaussian noise or interference, the filter impulse response will be matched with the desired signal alone. It is demonstrated by extensive computer simulations that applying the cumulant-based ICA and filtering improves dramatically the SNR of the final estimation of the EP components.
Sponsorship	IEEE Signal Process. Soc
Starting Page	237
Ending Page	240
File Size	393062
Page Count	4
File Format	PDF
ISBN	0780370112
DOI	10.1109/SSP.2001.955266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-08-08
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Independent component analysis Matched filters Filtering Signal to noise ratio Wiener filter Gaussian noise Blind source separation Additive noise Noise robustness Brain modeling
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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