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Authors: S. Bozhokin 1 ; I. Suslova 2 ; A. A. Riabokon 1 and T. D. Shokhin 1

Affiliations: 1 Institute of Physics and Mechanics, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia ; 2 World-Class Research Center for Advanced Digital Technologies, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia

Keyword(s): Heart Rate Turbulence, Continuous Wavelet Transform, Local Frequency.

Abstract: This paper presents new approaches to the analysis of non-stationary heart rate variability (HRV) taking into account strong time variation in the duration of RR intervals, which is associated with extrasystoles. A mathematical model of a frequency-modulated signal comprising of identical Gaussian peaks unevenly spaced along the time axis is applied to the phenomenon of heart rate turbulence (HRT). The maxima of the Gaussian peaks correspond to the moments of real heart contractions. A time-continuous function of local (instantaneous) heart rate frequency is calculated by analyzing the maxima of the continuous wavelet transform applied to such a model signal. The change in local frequency over time is proposed as a new characteristic of extrasystoles and compensatory pauses in the heart tachogram. The proposed method, applied in this work to study tachogram records with extrasystoles, can be used in the analysis of any other heart rhythm disturbances.

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Paper citation in several formats:
Bozhokin, S., Suslova, I., Riabokon, A. A., Shokhin and T. D. (2025). Heart Rate Turbulence: Wavelet Analysis of Frequency Modulated Signals. In Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - BIOSIGNALS; ISBN 978-989-758-731-3; ISSN 2184-4305, SciTePress, pages 1038-1045. DOI: 10.5220/0013342700003911

@conference{biosignals25,
author={S. Bozhokin and I. Suslova and A. A. Riabokon and T. D. Shokhin},
title={Heart Rate Turbulence: Wavelet Analysis of Frequency Modulated Signals},
booktitle={Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - BIOSIGNALS},
year={2025},
pages={1038-1045},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013342700003911},
isbn={978-989-758-731-3},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - BIOSIGNALS
TI - Heart Rate Turbulence: Wavelet Analysis of Frequency Modulated Signals
SN - 978-989-758-731-3
IS - 2184-4305
AU - Bozhokin, S.
AU - Suslova, I.
AU - Riabokon, A.
AU - Shokhin, T.
PY - 2025
SP - 1038
EP - 1045
DO - 10.5220/0013342700003911
PB - SciTePress

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