Design of a Cascade Adaptive Filter for the Removal of Baseline Drift

기저선 변동 제거를 위한 종속 적응필터의 설계

  • 박광리 (연세대학교 보건과학대학 의용전자공학과) ;
  • 이세진 (연세대학교 보건과학대학 의용전자공학과) ;
  • 이경중 (연세대학교 보건과학대학 의용전자공학과) ;
  • 윤형로 (연세대학교 보건과학대학 의용전자공학과)
  • Published : 1995.11.17

Abstract

In this paper, we designed a cascade adaptive filter for elimination of the baseline drift and the distortion of the filtered signal. The cascade adaptive filter(CAF) consists of two filters. The first adaptive filter which has the cutoff frequency of 0.3Hz eliminate the noisy signal. The second adaptive filter remove the remnant baseline drift which is not eliminated by the first adaptive filter. Comparing the performance of the CAF with standard filter, recursive notch filter(RNF) and a adaptive impulse correlated filter(AICF), the CAF showed a higher performance in removal of the baseline drift than standard filler, and RNF. Also, considering the distortion of filtered signal, CAF is better than AICF and is comparable to the standard filter.

Keywords