I have a very basic question, but I didn't find a definite answer elsewhere.
When we use
scipy.signal.cwt we specify only one parameter
widths. Do you know a function that can help to relate this
widths parameter to frequencies? Like,
pywt.scale2frequency() to relate scales to frequencies in pywt package.
The only hint I found is here: https://docs.scipy.org/doc/scipy/reference/generated/scipy.signal.morlet2.html
freq = np.linspace(1, fs/2, 100) widths = w*fs / (2*freq*np.pi)
Can you please explain how this works?
Similar questions, but there was no definite answer: Continuous Wavelet Transform with Scipy.signal: what is parameter "widths" in cwt() function? How do time-frequency? https://stackoverflow.com/questions/22813512/continuous-wavelet-transform-with-scipy-signal-python-what-is-parameter-widt