How the Level of Noise Affects Temporal Accuracy of a QRS Detector—Case Study

Our research clearly indicates that selecting a QRS-detection algorithm based solely on <i>DER</i>, <i>Se</i>, and <i>PPV</i> detection statistics may be incorrect. Two equally important detection quality parameters are the change in the <i>DER</i> error rate with tightened requirements of jitter and robustness of the detection statistics <i>DER</i>, <i>Se</i>, and <i>PPV</i> to noise level variations (algorithm's detection points immunity to noise).