Title :
An advanced detrending method with application to HRV analysis
Author :
Tarvainen, Mika P. ; Ranta-aho, Perttu O. ; Karjalainen, Pasi A.
Author_Institution :
Dept. of Appl. Phys., Kuopio Univ., Finland
Abstract :
An advanced, simple to use, detrending method to be used before heart rate variability analysis (HRV) is presented. The method is based on smoothness priors approach and operates like a time-varying finite-impulse response high-pass filter. The effect of the detrending on time- and frequency-domain analysis of HRV is studied.
Keywords :
electrocardiography; frequency-domain analysis; least squares approximations; medical signal processing; signal sampling; smoothing methods; spectral analysis; time series; time-domain analysis; ECG sampling; RR interval data; advanced detrending method; autonomic nervous system activity; frequency-domain analysis; heart rate variability analysis; mean-squared differences; power spectrum estimate; regularized least squares solution; respiratory sinus arrhythmia quantification; signal detrending; smoothness priors approach; spectral analysis; time series; time-domain analysis; time-varying FIR high-pass filter; Autonomic nervous system; Detectors; Electrocardiography; Filters; Frequency domain analysis; Frequency estimation; Heart rate variability; Physics; Power distribution; Spectral analysis; Algorithms; Electrocardiography; Fourier Analysis; Heart Rate; Humans; Models, Cardiovascular; Nonlinear Dynamics; Signal Processing, Computer-Assisted; Stochastic Processes;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
