Estimation of Instantaneous Bandwidth and Noise Rejection of ECG signals for 24-hours Continuous Health Monitoring System

24시간 건강 모니터링 시스템을 위한 심전도 신호의 순시 대역폭 추정 및 잡음 제거

  • Song, Min (Department of Electronics Engineering, Chonnam National University) ;
  • Choe, Jin-Myoung (Department of Electronics Engineering, Chonnam National University) ;
  • Lee, He-Young (Department of Electronics Engineering, Chonnam National University)
  • 송민 (전남대학교 전자공학과) ;
  • 최진명 (전남대학교 전자공학) ;
  • 이희영 (전남대학교 전자공학과)
  • Published : 2001.06.01

Abstract

For the diagnosis of arrhythmia in the heart system, the QRS complex of ECG signals is used in many cases. The rejection of the noise in ECG signals is important to acquisition of exact QRS complex. This paper presents some experimental results about instantaneous bandwidth estimation and noise rejection of ECG signals with the purpose of rejection of the 60 Hz power noise and the motion artifacts such as EMG signals and contact noise. ECG signals corrupted by noise are cleaned by using the variable bandwidth filter. For the filtering of ECG signals with noise, the instantaneous bandwidth of the signals is estimated by analysis of time-frequency representation of ECG signal.

Keywords