Envelope of a function.
Computes the envelope of the given function. The envelope is determined by adding the squared amplitudes of the function and it’s Hilbert-Transform and then taking the square-root. (See [Kanasewich1981]) The envelope at the start/end should not be taken too seriously.
Parameters: | data Data to make envelope of, type numpy.ndarray. |
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Returns: | Envelope of input data. |