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This section presents results obtained using the HRT on a the Mobil
AVO data set Lumley et al. (1995). These prestack data are heavily contaminated
by free-surface and water-bottom multiples and thus constitute a challenging test-bed
for true amplitude multiple attenuation techniques.
The strategy for the multiple elimination is as follows:
- 1.
- Create a velocity panel with the iterative Hyperbolic Radon Transform using the Huber
solver.
- 2.
- Define a corridor between multiples and primaries in the velocity space.
- 3.
- Mute out the primaries in the velocity space.
- 4.
- Model back the multiples in the data space.
- 5.
- Subtract the multiples field from the input data.
- 6.
- NMO and Stack.

This method is most suitable for preserving primaries energy.
I compare *l*^{2}, *l*^{1} and *l*^{1} with *l*^{1} regularization for the inversion in step 1.
I decide to parameterize the problem using velocities and not slownesses.

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Stanford Exploration Project

4/27/2000