Comparative evaluation of decomposition algorithms based on frequency domain blind source separation of biomedical signals

Authors:
Matteo Milanesi;Nicola Vanello;Vincenzo Positano;Maria Filomena Santarelli;Danilo De Rossi;Luigi Landini
Affiliations:
Department of Electrical Systems and Automation, Faculty of Engineering, University of Pisa, Italy;Department of Electrical Systems and Automation, Faculty of Engineering, University of Pisa, Italy;CNR Institute of Clinical Physiology, Pisa, Italy;CNR Institute of Clinical Physiology, Pisa, Italy;Interdepartmental Research Center "E. Piaggio", Faculty of Engineering, University of Pisa, Italy;Interdepartmental Research Center "E. Piaggio", Faculty of Engineering, University of Pisa, Italy
Venue:
MMACTE'05 Proceedings of the 7th WSEAS International Conference on Mathematical Methods and Computational Techniques In Electrical Engineering
Year:
2005

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Abstract

In this paper we compare the performance of different algorithms employed in solving frequency domain blind source separation of convolutive mixtures. The convolutive model is an extension of the instantaneous one and it allows to relax the hypothesis of a linear mixing process in which all the sources are supposed to reach the electrodes at the same time. This test is carried out in the frequency domain, where the algorithms developed for independent component analysis can be employed with minor modifications. The decomposition performance of such algorithms is evaluated on simulated dataset of convultive mixtures of biomedical signals.