Selection of Parameters of Bandpass Filtering of the ECG Signal for Heart Rhythm Monitoring Systems

Abstract

This work is devoted to the bandpass frequency filtering of the ECG signal in heart rhythm monitoring systems against the background of disturbances and noises of various origins. It was suggested to optimize the procedure for selection of the bandwidth and the type of bandpass filter using the criteria for minimization of uncertainty in the measurement of the R-R intervals. Two different approaches to the bandpass filtering were considered: use of a second-order analog active filter and of an eighth-order digital filter.