Suppression of Noisy Characteristics of Biosignals by Implementing Digital Filters with an Android Smartphone Platform

스마트폰 연동 생체신호 왜곡보정을 위한 디지털 필터 설계 및 구현

  • 김정환 (건국대 의료생명대 의학공학부) ;
  • 김경섭 (건국대 의료생명대 의학공학부, 건국대 의공학실용기술연구소) ;
  • 신승원 (건국대 의료생명대 의학공학부) ;
  • 김현태 (건국대 의료생명대 의학공학부) ;
  • 이정환 (건국대 의료생명대 의학공학부) ;
  • 김동준 (청주대 이공대학 전자정보공학부)
  • Received : 2012.08.23
  • Accepted : 2012.09.24
  • Published : 2012.10.01


In this study, the novel digital filtering algorithms are implemented to suppress the noisy characteristics embedded in ambulatory electrocardiogram signals by an android smartphone platform. With this aim, Graphical User Interface (GUI) is designed and implemented by utilizing multithread-Java programming to realize Finite Impulse Response and Infinite Impulse Response filter. With simulating our implemented digital filters built in an android smartphone, we can find the fact that we can efficiently suppresses the noisy characteristics due to baseline wandering and 60 Hz powerline source fluctuations especially in electrocardiograms.


ECG;Smartphone;FIR filter;IIR filter


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