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Subband Modeling of the Human Cardiovascular System: New Insights into Cardiovascular Regulation |
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| Authors: | R. Vetter P. Celka J. M. Vesin G. Thonet E. Pruvot M. Fromer U. Scherrer L. Bernardi |
| Affiliation: | (1) Department of Electrical Engineering, Signal Processing Laboratory, Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland;(2) Division of Cardiology, University Hospital, CH-1011 Lausanne, Switzerland;(3) Department of Internal Medicine, University Hospital, CH-1011 Lausanne, Switzerland;(4) Department of Internal Medicine, University of Pavia, Hospital S. Matteo, I-27100 Pavia, Italy |
| Abstract: | We present a new approach to cardiovascular analysis based on a well-known signal processing technique, namely, the frequency subband decomposition. The subbands are chosen in accordance with physiological standards: (1) 0–0.04 Hz, (2) 0.04–0.15 Hz, (3) 0.15–0.4 Hz. It is shown that such a pre-processing drastically improves the accuracy of the analysis and introduces a new direction in the understanding of the relationships between cardiovascular signals. © 1998 Biomedical Engineering Society.PAC98: 8710+e |
| Keywords: | Cardiovascular system Autonomic nervous system Subband decomposition Wavelet filter bank Multidimensional linear modeling Subband modeling Cardiovascular regulation |
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