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Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
ISSN: 1058-6393
ISBN: 0-8186-6405-3
pp: 1085-1158
N. Darvish , Dept. of Electr. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
R.I. Kitney , Dept. of Electr. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
ABSTRACT
In this paper, a variety of time-frequency and time-scale methods has been applied to the detection of transients in the heart rate and respiration of neonates during quiet sleep. The methods used include the well-known short-term Fourier Transform, the Wigner-Ville distribution and the wavelet transform as well as the lesser-known instantaneous power spectrum and the Choi-Williams distribution. As far as the authors were aware, the latter two methods have not yet been applied to physiological signals. This study was carried out as part of a project to study the dynamic interactions in the cardiorespiratory system during transient phenomena.<>
INDEX TERMS
time-frequency analysis, transient analysis, signal detection, medical signal processing, Fourier transforms, Wigner distribution, wavelet transforms, spectral analysis, electrocardiography
CITATION

N. Darvish and R. Kitney, "Time-frequency and time-scale methods in the detection and classification of non-stationarities in human physiological data," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 1085-1158.
doi:10.1109/ACSSC.1994.471626
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