obspy.signal.filter.envelope¶

envelope(data)[source]¶

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 (numpy.ndarray) Data to make envelope of.
Returns:	Envelope of input data.