A Real-time QRS Complex Detection Algorithm for Portable ECG Monitoring Systems

A precise real-time QRS complex detection algorithm based on baseline-derivative with the peak-valley detection combined of ambulatory electrocardiograph (ECG) signals to meet the need of portable ECG monitoring system is developed.The algorithm can not only overcome all kinds of noise interference on the ECG signal also both effectively reduce the false detection rate and the missed rate of the QRS complex.After verification test ECG signals in the MIT-BIH database QRS wave detection accuracy rate up to 99.9%,the experimental results show that the algorithm can be fast and accurate diagnostic ECG signal,and is easily applied in the portable system.