Wavelet Transform

Windowed Fourier Transform denotes a spectrogram

Scalogram is the spectral graph by wavelet transform.

Good study materials are:

https://www.youtube.com/watch?v=ZnmvUCtUAEE 

https://www.youtube.com/watch?v=MX7ymkYGiZ0 

 

Wavelet transform library: https://github.com/OverLordGoldDragon/ssqueezepy

GitHub - OverLordGoldDragon/ssqueezepy: Synchrosqueezing, wavelet transforms, and time-frequency analysis in Python