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Name
Instantaneous -- Attribute that returns an instantaneous attribute
Description
The imaginary part of the complex trace is computed via the Hilbert transform. Possible outputs are:
Amplitude
Outputs the instantaneous amplitude (or envelope) of the selected data volume at the sample location.
Phase
Calculates the instantaneous phase at the sample location.
Frequency
Outputs the instantaneous frequency at the sample location.
Hilbert
Imaginary part of the complex trace.
Amplitude 1st derivative
Time derivative of the instantaneous amplitude. Used to detect sharp interfaces and discontinuities.
Amplitude 2nd derivative
Second derivative of the envelope. Used to define the sharpness of amplitude peak.
Cosine phase
Cosine of the instantaneous phase, also called normalized amplitude.
Envelope weighted phase
Instantaneous phase, weighted by the envelope over the given timewindow.
Envelope weighted frequency
Instantaneous frequency, weighted by the envelope over the given timewindow.
Phase acceleration
Time derivative of the instantaneous frequency.
Thin bed indicator
Difference between instantaneous frequency and Envelope weighted frequency
Bandwidth
The absolute value of the envelope time derivative
Q factor
Instantaneous frequency divided by the bandwidth