Imaging condition in plane wave synthesis imaging

In plane wave synthesis imaging, the deconvolution of the downgoing wave field from the upcoming wave field is performed in the same domain as profile imaging is (Figure ). As explained in an earlier section, the deconvolution in the space domain implies diagonality of reflectivity matrix and the diagonal property is valid only if the source wave acts like a plane wave locally. This is the case of plane wave synthesis imaging because it synthesizes a plane wave source along the reflector before migration.

Therefore, in plane wave synthesis migration, we retrieve the angle-dependent reflectivity by using a conventional imaging condition.

 

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Figure 6 Schematic representation of PWS imaging condition