Python Hilbert does not seem to calculate the envelope

1. What is Hilbert envelope?
2. How do you calculate signal envelope?

What is Hilbert envelope?

The envelope is the magnitude of the analytic signal computed by hilbert . Plot the envelope along with the original signal. Store the name-value pair arguments of the plot function in a cell array for later use.

How do you calculate signal envelope?

analytical signal a(t)=x(t)+j(hilbert(x(t)) of a real value signal, then the envelope of the original signal is abs(a(t)). wig2() to calculate. Good luck!