FilterNIHR: Artefact filter based in an adaptive threshold
Description
An algorithm that uses adaptive thresholds for rejecting those beats different from the given threshold more than a certain value. The rule for beat acceptation or rejection is to compare with previous, following and with the updated mean. We apply also a comparison with acceptable physiological values (25 and 200 bpm).Usage
FilterNIHR(HRVData, long=50, last=13, mini=12, maxi=20, fixed=10, verbose=FALSE)
Arguments
HRVData
Data structure that stores the beats register and information related to it
long
Number of beats to calculate the updated mean
mini
Deprecated argument maintained for compatibility
maxi
Deprecated argument maintained for compatibility
fixed
Deprecated argument maintained for compatibility
verbose
Deprecated argument maintained for compatibility, use SetVerbose() instead
Value
- Returns HRVData, the structure that contains beat positions register, associated heart rate instantaneous values also, and now filtered heart rate signal
References
X. Vila, F. Palacios, J. Presedo, M. Fernandez-Delgado, P. Felix, S. Barro, "Time-Frequency analysis of heart-rate variability," IEEE Eng. Med. Biol. Magazine 16, 119-125 (1997)
L. Rodriguez-Linares, X. Vila, A. Mendez, M. Lado, D. Olivieri, "RHRV: An R-based software package for heart rate variability analysis of ECG recordings," 3rd Iberian Conference in Systems and Information Technologies (CISTI 2008), Proceedings I, 565-573 (2008)