... Decomposition and the Hilbert Spectrum for Nonlinear and Non-Stationary Time Series Analysis, ” Proc. R. Soc. Lond. A, Vol. 45 4,1998, pp. 903–995.[ 14] Huang, N. E., and S. S. Shen, The Hilbert-Huang ... H., and H. Heinrich, Analysis of ECG Late Potentials Using Time-Frequency Methods, ” in M. Akay, (ed.), Time Frequency and Wavelets in Biomedical Signal Process-ing, Chapter 4, New York: Wiley-IEEE ... information in the ECG. Traditional filtering meth-ods, therefore, cannot remove these noises without severely distorting the underlying ECG. 5 .4. 3 .4 ICA for Removing Noise on the ECG For the application...