Spectral estimate of the heart rate variability often involves using the fast Fourier transform that requires evenly sampled time series. They are gotten by resampling (various methods of resampling are usually employed). But it’s not clear what resampling interval we must use to minimize the mistake that appears after interpolation.
heart rate variability, RR-interval, tachogram, ritmogram, resampling, resampling interval, spectral analysis, frequency components
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Information Processing Systems,