Report 2 Migration Green’s Function by a Stationary Phase Approximation
نویسنده
چکیده
The analytical Green’s functions for the equations of zero-offset and non-zero offset migration were previously derived for a homogeneous velocity model and the far-field approximation. These approximations restricted their practical application to field data. I now derive the analytical migration Green’s functions for an inhomogeneous medium using a stationary phase approximation. These Green’s functions are valid for sufficiently high source frequencies, and can possibly be used as an efficient tool for remigration, velocity analysis, filtering and migration deconvolution.
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