HEMNO - A Time-Imaging Operator for Pegleg Multiples in 2-D and 3-D

To correctly image primary or multiple reflections in a heterogeneous earth, migration reigns supreme,<br>although its computational cost may be nontrivial over complex geology, in 3-D, or when a “true amplitude”<br>image is required. My earlier (Brown, 2002) technique to jointly image primaries and pegleg<br>multiples used normal moveout (NMO), because of NMO’s speed and its amplitude predictability, in<br>spite of its inability to account for nonflat geology.