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Plane-wave migration measurement of convergence in plane-wave migration.
| Content Provider | CiteSeerX |
|---|---|
| Author | Hogan, Chad M. Margrave, Gary F. |
| Abstract | We have developed a FOCI-driven imaging code that implements a plane-wave migra-tion algorithm. This algorithm produces images that are interpretable with a fraction of the computation time required for a full prestack migration. Additionally, the image may be selectively refined to maximize the benefit of computation time. To guide this refinement, we propose a measure (“residual”) of the convergence of the imaging. This method selects a region of the image to monitor. Then within this region, the `2 norm of the difference between two successive plane-wave stacks normalized by the `2 norm of the first plane-wave stack is calculated. This residual decreases rapidly while the image is improving and approaches zero as the image approaches its limit. We have implemented this plane-wave code in order to facilitate highly-efficient prestack wave-equation depth migration. Although plane-wave migration is well-known in the seis-mic community, we intend to use this code as a starting point for future theoretical devel-opments. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Plane-wave Migration Plane-wave Migration Measurement Computation Time Highly-efficient Prestack Wave-equation Depth Migration Plane-wave Code Seis-mic Community Future Theoretical Devel-opments Starting Point Foci-driven Imaging Code First Plane-wave Stack Successive Plane-wave Stack Full Prestack Migration Plane-wave Migra-tion Algorithm |
| Content Type | Text |
