Date: Mar 22, 2013 8:13 AM Author: Eng Manjurul Subject: Discrete wavelet transform level of decomposition problem Hi ,

I am doing EEG signal processing using discrete wavelet transform. Suppose, my data is sampled with 500Hz. So, according to Nyquist theorem there is 250 hz spectrum. I filtered the signal 0-64 Hz. I need 8-16Hz band. Now how much decomposition level is required?? 3 or 5??