Filtering of ECG Signal Using Adaptive and Non Adaptive Filters

Abhishek Sahu*, Jitendra Kumar**
* PG Scholar, Department of Electronics and Telecommunication, SSTC, Bhilai, India.
** Assistant Professor, Department of Electronics and Instrumentation, SSTC, Bhilai, India.
Periodicity:January - March'2016
DOI : https://doi.org/10.26634/jdp.4.1.4855

Abstract

Electrocardiogram (ECG) is an important diagnostic tool for the diagnosis of cardiac abnormalities. In this paper, the authors introduce a study on different types of noises, For example, Power Line Interference (PLI), Motion Artifacts, Electrode Contact Noise, Muscle Contraction, Base Line Drift, Electromyography/noise (EMG), Instrumentation Noise, etc. To eliminate the above mentioned noises, various algorithms of adaptive filter are used and authors also used Discrete Wavelet Transform (DWT) to remove Random Artifacts and filter with constant coefficients as because, hum manner is not accurate. To solve this problem, digital filters are used such as Adaptive filters as Least Mean Square (LMS), Normalized Least Mean Square (NLMS), Recursive Least Square (RLS), sign LMS, sign-sign LMS algorithms and Discrete Wavelet Transform (DWT). The performance of algorithms are evaluated by Signal to Noise Ratio (SNR), Mean Square Error (MSE), Percentage Root Mean Square (%PRD) and Normalized Mean Square (NMSE). In comparison to various adaptive algorithms, SSLMS gives better result for all parameters with MSE = 0.0262, NRMSE = 0.0033 , %PRD = 0.3331, RMSE = 0.331, and SNR = -4.3914 .

Keywords

ECG, LMS, NLMS, RLS, SLMS, DWT, SNR, MSE, NMSE, % PRD.

How to Cite this Article?

Sahu,A., and Kumar,J. (2016). Filtering of ECG Signal Using Adaptive and Non Adaptive Filters,i-manager’s Journal on Digital Signal Processing, 4(1), 1-8. https://doi.org/10.26634/jdp.4.1.4855

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