An ECG Signal Compressor Based On The Selection Of Optimal Threshold Levels Of Discrete Wavelet Transform Coefficients Research Authors A. F. Al-Ajlouni1 , M. Abo-Zahhad, S. M. Ahmed, and R. J. Schilling Research Department Electrical Engineering Department Research Journal Journal of Medical Engineering & Technology Research Member Mohammed Abo Zahhad Research Rank 1 Research Year 2008