A fast adaptive filter for electrocardiography

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

Research output: Contribution to journalConference articlepeer-review

Abstract

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)
Pages (from-to)106-107
Number of pages2
JournalProceedings of the IEEE Annual Northeast Bioengineering Conference, NEBEC
Volume30
StatePublished - 2004
Externally publishedYes
EventProceedings of the IEEE 30th Annual Northeast Bioengineering Conference - Springfield, MA, United States
Duration: Apr 17 2004Apr 18 2004

Keywords

  • Adaptive Filter
  • ECG
  • Power Line Interference

ASJC Scopus subject areas

  • Chemical Engineering(all)

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