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An Efficient Time-Varying Filter for Detrending and Bandwidth Limiting the Heart Rate Variability Tachogram without Resampling : MATLAB Open-Source Code and Internet Web-Based Implementation
Joint Authors
Eleuteri, A.
Groves, D.
Dewhurst, C. J.
Fisher, A. C.
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-06
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The heart rate variability (HRV) signal derived from the ECG is a beat-to-beat record of RR intervals and is, as a time series, irregularly sampled.
It is common engineering practice to resample this record, typically at 4 Hz, onto a regular time axis for analysis in advance of time domain filtering and spectral analysis based on the DFT.
However, it is recognised that resampling introduces noise and frequency bias.
The present work describes the implementation of a time-varying filter using a smoothing priors approach based on a Gaussian process model, which does not require data to be regular in time.
Its output is directly compatible with the Lomb-Scargle algorithm for power density estimation.
A web-based demonstration is available over the Internet for exemplar data.
The MATLAB (MathWorks Inc.) code can be downloaded as open source.
American Psychological Association (APA)
Eleuteri, A.& Fisher, A. C.& Groves, D.& Dewhurst, C. J.. 2012. An Efficient Time-Varying Filter for Detrending and Bandwidth Limiting the Heart Rate Variability Tachogram without Resampling : MATLAB Open-Source Code and Internet Web-Based Implementation. Computational and Mathematical Methods in Medicine،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-482264
Modern Language Association (MLA)
Eleuteri, A.…[et al.]. An Efficient Time-Varying Filter for Detrending and Bandwidth Limiting the Heart Rate Variability Tachogram without Resampling : MATLAB Open-Source Code and Internet Web-Based Implementation. Computational and Mathematical Methods in Medicine No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-482264
American Medical Association (AMA)
Eleuteri, A.& Fisher, A. C.& Groves, D.& Dewhurst, C. J.. An Efficient Time-Varying Filter for Detrending and Bandwidth Limiting the Heart Rate Variability Tachogram without Resampling : MATLAB Open-Source Code and Internet Web-Based Implementation. Computational and Mathematical Methods in Medicine. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-482264
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-482264