Comparison of two methods for demodulation of pulse signals – application in case of central sleep apnea

Le Page Ronan; Nguyen Quang Vinh; Goujon  Jean-Marc; Poffo Luiz; Thual  Monique

doi:10.15625/2525-2518/58/3/14640

Author affiliations

Authors

Le Page Ronan Universite Rennes, CNRS, Institut Foton, UMR 6082, F-22305, Lannion, France
Nguyen Quang Vinh Universite Rennes, CNRS, Institut Foton, UMR 6082, F-22305, Lannion, France
Goujon Jean-Marc Universite Rennes, CNRS, Institut Foton, UMR 6082, F-22305, Lannion, France
Poffo Luiz Universite Rennes, CNRS, Institut Foton, UMR 6082, F-22305, Lannion, France
Thual Monique Universite Rennes, CNRS, Institut Foton, UMR 6082, F-22305, Lannion, France

DOI:

https://doi.org/10.15625/2525-2518/58/3/14640

Keywords:

Optical pulse signal, AM-FM demodulation, Singular Spectrum Analysis (SSA), Singular Value Decomposition (SVD), Principal or Independent Component Analysis (PCA or ICA), Heart and Respiratory Rates

Abstract

In the field of 24/7 human health monitoring, pervasive computing makes possible the continuous analysis of physiological parameters from an ambulatory device with a great acceptability. This paper presents two methods for obtaining cardiac and respiratory rates from a single arterial pressure signal: AM-FM demodulation and Singular Spectrum Analysis (SSA). With the aim to monitor sleep apnea, two simulated central sleep apnea were performed and recorded with Biopac reference system. The results showed a good evaluation of the cardiac rate with Singular Spectrum Analysis and bad results with AM-FM demodulation. For the respiration rate, some other signals were tested with average results for both methods. Further experiments will deal with real sleep apnea cases and algorithm improvements.

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