The Ornstein-Uhlenbeck third-order Gaussian process (OUGP) applied directly to the un-resampled heart rate variability (HRV) tachogram for detrending and low-pass filtering.
Anthony C. FisherAntonio EleuteriDavid GrovesChristpher J. DewhurstPublished in: Medical Biol. Eng. Comput. (2012)