Deconvolution in Velocity Space
, by Jon F. Claerbout
The deconvolution process is motivated by two phenomena, source signature and near-surface reverberation. Here the process is formulated to include uncertainty in the velocity of near-surface weathered layers. Tests on previously studied data confirm that wave-equation deconvolution removes wide-angle multiples more effectively than does simultaneous pre- and post-NMO deconvolution. No obvious multiple reflections remain. As before,
a bubble signature cannot be confirmed as being an essential feature of this data.
Regression coefficients are determined in both offset space and in a velocity space. Regression coefficients determined in the velocity space give better results in offset space than do regressions done entirely in offset space.
STANFORD