how to find normalized centered instantaneous of amplitude,phase and frequency using matlab code?

I am trying to work on digital modulation classification using ANN the first step is to extract feature i have difficult on finding normalized centered instantaneous amplitude,phase and frequency to find the maximum value of Power Spectral Density (PSD) of normalized-centered instantaneous amplitude,phase and frequency using matlab can any one help me

[Raúl Maldonado]

Hello, how was your search? I have the same problem.