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Subband-Adaptive Shrinkage for Denoising of ECG Signals

  • S. PoornachandraEmail author
  • N. Kumaravel
Open Access
Research Article

Abstract

This paper describes subband dependent adaptive shrinkage function that generalizes hard and soft shrinkages proposed by Donoho and Johnstone (1994). The proposed new class of shrinkage function has continuous derivative, which has been simulated and tested with normal and abnormal ECG signals with added standard Gaussian noise using MATLAB. The recovered signal is visually pleasant compared with other existing shrinkage functions. The implication of the proposed shrinkage function in denoising and data compression is discussed.

Keywords

Shrinkage Information Technology Gaussian Noise Quantum Information Data Compression 

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Copyright information

© Poornachandra and Kumaravel 2006

Authors and Affiliations

  1. 1.Department of Biomedical Engineering, SSN College of EngineeringAnna UniversityChennaiIndia
  2. 2.Department of Electronics and Communication EngineeringAnna UniversityChennaiIndia

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