A fast adaptive filter for electrocardiography

Soumyadipta Acharya, Dale H. Mugler, Bruce C. Taylor

Research output: Contribution to conferencePaperpeer-review


A new adaptive filter structure is proposed to reduce power line interference from ECGs. It is based on the principle of continuously tracking the Frequency, Amplitude and Phase of the noise, using a modified form of the Short Time Fourier Transform. This information is used to reconstruct the noise signal, which is then subtracted from the noisy ECG. The method was tested using ECGs from the MIT-BIH database with superimposed noise of varying amplitude and frequency (60 Hz +/- 5 Hz). It was found to be efficient even at low sampling rates. The process is computationally simple enough for real time implementation. It also obviates the need for a reference input. This technique can be applied to many other bipotential signals, and can be adapted for hardware implementation.

Original languageEnglish (US)
Number of pages2
StatePublished - Jun 22 2004
Externally publishedYes
EventProceedings of the IEEE 30th Annual Northeast Bioengineering Conference - Springfield, MA, United States
Duration: Apr 17 2004Apr 18 2004


OtherProceedings of the IEEE 30th Annual Northeast Bioengineering Conference
CountryUnited States
CitySpringfield, MA


  • Adaptive Filter
  • ECG
  • Power Line Interference

ASJC Scopus subject areas

  • Bioengineering

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