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심전도 자동진단을 위한 60Hz 전원잡음 제거 필터에 관한 연구
권혁제,정기삼,이명호,Kweon, Hyukje,Jeong, Keesam,Lee, Myoungho 대한의용생체공학회 1996 의공학회지 Vol.17 No.1
Diverse digital filters have been designed previously to eliminate powerline(AC) interference in the electrocardiouam. This paper describes filtering methods which have been developed recursive notch, adaptive, IEF(Incremental Estimation Filter) and proposes a new AIEF(Advanced Incremental Estimation Filter) method. The performances of these filters are compared on artificial signals as well as actual ECG signals with the aid of validated CSE(Common Standards for Quantitative Electrocardiowaphy). AC interference in this database is shown to exhibit two qualities especially relevant to filter design : considerable deviations from a nominal 60Hz frequency and substantial noise at higher harmonics.