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Tilmann H. Sander, Martin Burghoff, Peter Van Leeuwen, Lutz Trahms

Application of decorrelation-independent component analysis to biomagnetic multi-channel measurements

Keywords: blind source separation, fetus, magnetocardiography, magnetoencephalography, somatosensory, time-delayed decorrelation

Biomagnetic multi-channel recordings are typically a superposition of signals from several biological sources of interest and from biological and technical noise sources. Besides averaging, source localization, and spectral analysis to name only a few methods, independent component analysis is an established tool to resolve the superposition present in raw biomagnetic data on a purely statistical basis. Here the time-delayed decorrelation-independent component analysis algorithm is applied to exemplary magnetocardiographic and magnetoencephalographic data and the successful signal separation is demonstrated.

Biomedizinische Technik, Walter de Gruyter

Print ISSN: 0013-5585
Volume: 52, 02/2007
Pages: 130 - 136

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