Hi
tnx your response
As my thesis I work on Sleep staging and my idea is to implement a neural network by features taked from time and frequency domain
there are six EEG(ElectroEncephaloGram) signal that must be analysed at some frequency band
after decomposed by wavelet db3 ,level 4 at freq ranges 04,48,812,1216 and 1632, wavelet coefficients of each signal are entered a statistic phase and......
since I have never used Matlab
my problem is how to get wavelet coefficient of a signal by wavelet decomposition daubechies3 and 4 level at above ranges
