Research on QRS waveform detection based on difference absolute value extreme

Abstract

ECG signal is an important basis for clinical diagnosis of cardiovascular disease, and ECG signal automatic detection of cardiovascular disease is the core of automatic diagnosis. In this paper, based on the existing ECG signal detection and location algorithm, a differential absolute value extremum algorithm is proposed. This algorithm combines the original difference algorithm principle and the difference absolute value, at the same time in the final positioning abandoned the discrete sampling location method, and using the extremum positioning method, which improves the positioning accuracy. Using this algorithm, the QRS waveforms of 5 groups of ECGs were detected and the detection accuracy was 99.67%.