An ECG Segmentation Model Used for Signal Generator

An ECG segmentation model and modeling method used for ECG signal generator is addressed in this paper. With the model, the ECG signal is divided into several pieces and each piece has an adjustable sampling time interval. According to this segmentation model, extending the ECG signal is achieved by adjusting the different sampling time intervals and interpolating the signal. There are two contrastive interpolating methods in this paper. One is interpolating the signal with zeroes between two consecutive sampling points, the other is interpolating the signal with piecewise linear interpolation. The second method, which can avoid the ill-conditioned characters in high order interpolation, approximates the quondam curve by the fold line through the interpolating points. And the result of spectrum analysis shows that the modeling method and piecewise linear interpolation could keep the ECG information without distortion.