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Time-efficient removal of power-line noise from EMG signals using IIR notch filters with non-zero initial conditions

Paper ID Volume ID Publish Year Pages File Format Full-Text
5250 355 2013 8 PDF Available
Title
Time-efficient removal of power-line noise from EMG signals using IIR notch filters with non-zero initial conditions
Abstract

Power-line interference is always a problem when biopotential signals are recorded. This paper presents a technique for time-efficient power-line interference suppression from EMG signals using digital IIR (Infinite Impulse Response) notch filters with reduced transient response. The reduction of the transient response is obtained by finding optimal non-zero initial conditions for the considered notch filters. Simulations verifying the effectiveness of the proposed technique are presented and compared with the performance of the traditional notch filters with zero initial conditions using EMG signal with unwanted sinusoidal interferences as a study case.

Keywords
Signal processing; Power-line noise; EMG signal; Notch filters; Transient response; Initial conditions
First Page Preview
Time-efficient removal of power-line noise from EMG signals using IIR notch filters with non-zero initial conditions
Publisher
Database: Elsevier - ScienceDirect
Journal: Biocybernetics and Biomedical Engineering - Volume 33, Issue 3, 2013, Pages 171–178
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering