A Time-Frequency HRV Processor Using Windowed Lomb Periodogram

In this paper, a system for time-frequency analysis of heart rate variability (HRV) using windowed Lomb periodogram is proposed. The system is designed with considerations in SOC implementation for portable applications. Time-frequency analysis of HRV is achieved through a de-normalized Lomb periodo...

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Bibliographic Details
Published inDatabase Theory and Application, Bio-Science and Bio-Technology Vol. 118; pp. 273 - 282
Main Authors Tseng, Shao-Yen, Fang, Wai-Chi
Format Book Chapter
LanguageEnglish
Published Germany Springer Berlin / Heidelberg 2010
Springer Berlin Heidelberg
SeriesCommunications in Computer and Information Science
Subjects
Biomedical system
ECG
healthcare
HRV
Lomb
portable
remote monitoring
TFD
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Summary:In this paper, a system for time-frequency analysis of heart rate variability (HRV) using windowed Lomb periodogram is proposed. The system is designed with considerations in SOC implementation for portable applications. Time-frequency analysis of HRV is achieved through a de-normalized Lomb periodogram with a sliding window configuration. The Lomb time-frequency distribution (TFD) is suited for power spectral density (PSD) analysis of unevenly spaced data and has been applied to the analysis of heart rate variability. The system has been implemented in hardware as an HRV processor and verified on FPGA. Artificial heart rate was used to evaluate the system as well as data from the MIT-BIH arrhythmia database and real EKG data. Simulations show that the proposed Lomb TFD is able to achieve better frequency resolution than short-time Fourier transform of the same hardware size.
ISBN:9783642176210
3642176216
ISSN:1865-0929
1865-0937
DOI:10.1007/978-3-642-17622-7_28