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Removal of Artifacts from Electrocardiogram Using Efficient Dead Zone Leaky LMS Adaptive Algorithm

  • T. Gowri
  • P. Rajesh Kumar
  • D. V. R. Koti Reddy
  • Ur Zia Rahman
Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 43)

Abstract

The ability to extract high resolution and valid ECG signals from contaminated recordings is an important subject in the biotelemetry systems. During ECG acquisition several artefacts strongly degrades the signal quality. The dominant artefacts encountered in ECG signal such as Power Line Interference, Muscle Artefacts, Baseline Wander, Electrode Motion Artefacts; and channel noise generated during transmission. The tiny features of ECG signal are masked due to these noises. To track random variations in noisy signals, the adaptive filter is used. In this paper, we proposed Dead Zone Leaky Least Mean Square algorithm, Leaky Least Mean Froth algorithm and Median Leaky LMS algorithms to remove PLI and EM artefacts from ECG signals. Based on these algorithms, we derived some sign based algorithms for less computational complexity. We compare the proposed algorithms with LMS algorithm, which shows better performance in weight drift problem, round off error and low steady state error. The simulation results show that Dead Zone Leaky LMS algorithm gives good correlation factor and SNR ratio.

Keywords

Adaptive filter Artifacts ECG LMS algorithm Noise cancellation 

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Copyright information

© Springer India 2016

Authors and Affiliations

  • T. Gowri
    • 1
  • P. Rajesh Kumar
    • 2
  • D. V. R. Koti Reddy
    • 3
  • Ur Zia Rahman
    • 4
  1. 1.Department of ECEGIT, GITAM UniversityVisakhapatnamIndia
  2. 2.Department of ECEAUCE, Andhra UniversityVisakhapatnamIndia
  3. 3.Department of Institute of TechnologyAUCE, Andhra UniversityVisakhapatnamIndia
  4. 4.Department of ECEKL UniversityGunturIndia

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