Update Required
To play the media you will need to either update your browser to a recent version or update your
Flash plugin.
Update Required
To play the media you will need to either update your browser to a recent version or update your
Flash plugin.
The Hilbert transform has applied to the different wave fields in order to estimate their amplitude with the instantaneous envelope computed from the associated analytic signal.
The video shows the instantaneous amplitude of the down going Stoneley waves, the up going Stoneley waves and the noise. For each wave field, the instantaneous amplitudes are stacked in a corridor immediately following the arrival time of the down going P-wave. For the Stoneley waves, the stacked amplitude, normalized by the maximum value and expressed in dB, represents the conversion of a body P-wave in to a Stoneley mode.
