Computer Science ›› 2018, Vol. 45 ›› Issue (6A): 588-590.

• Interdiscipline & Application • Previous Articles     Next Articles

Improved Difference Algorithm and It’s Application in QRS Detection

PENG Yan,WU Zhao-qiang, ZHANG Jing-kuo, CHEN Run-xue   

  1. School of Computer Science,Sichuan University of Science &Engineering,Zigong,Sichuan 643000,China
  • Online:2018-06-20 Published:2018-08-03

Abstract: An improved difference threshold algorithm was used to realize the electrocardiogram QRS wave detection.Distinguishing from traditional adaptive algorithms,the algorithm can realize precise localization of QRS wave in the case of strong interference,the detection error rate is under 1%,and it has feature of a small amount of calculation and strong real-time.Through a lot of practice,the implementation of algorithm can be divided into three steps.Firstly,through the combination of first derivative and second derivative,the QRS complex is determined.Secondly,Q,R,S peak position are confirmed through the adaptive threshold.Thirdly,the position of P wave and T wave are determined by using the form method through above parameters.

Key words: Adaptive threshold algorithm, Improved difference algorithm, QRS detection

CLC Number: 

  • TP301.6
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