A comparison of omega-x, PSPI and explicit algorithms for post-stack migration

Carl D. Notfors

doi:10.1071/EG999173

ISSN: 0812-3985
E-ISSN: 1834-7533

A comparison of omega-x, PSPI and explicit algorithms for post-stack migration
Authors Carl D. Notfors^a
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^a Veritas DGC, Union Industrial Building#06-01 37 Jalan Pemimpin Singapore, 577177, Phone:(65) 258 1221, Facsimile:(65) 258 0989, http//www.veritasdgc.com
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 30, Issue 3-4, Sep 1999, p. 173 - 176
DOI: https://doi.org/10.1071/EG999173
- Published online: 01 Sep 1999

Abstract

Three widely used frequency domain algorithms for post-stack migration are the omega-x, PSPI and explicit algorithms. They differ in speed and accuracy with omega-x being the least accurate and fastest. Phase shift plus interpolation (PSPI) is the slowest and less accurate than the explicit algorithm. The explicit algorithm is the most accurate of the three and its run time falls between the omega-x and PSPI algorithm.

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References

Claerbout, J.F., 1985, Imaging The Earth’s Interior, Blackwell Publishing
Hale, D., 1991, 3-D depth migration via McClellan transformations, Geophysics, 56, 1778-1785.
Hazra, S. N. and Reddy, M. S., 1986, Design of circularly symmetric low-pass twodimensional FIR digital filters using transformation: IEEE Transactions on Circuits and Systems, 33, 1022-1026.
Notfors, C. D., 1995, Accurate and efficient explicit 3D migration: 65th Annual Meeting, Society of Exploration Geophysicists, Extended Abstracts, 1224-1227.
Parks, T. W. and McClellan, J. H., 1972, A Program for the Design of Linear Phase Finite Impulse Response Filters, IEEE Transactions Audio Electroacoustics, Vol. AU-20, No.3, 195-199.

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Article Type: Research Article

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A comparison of omega-x, PSPI and explicit algorithms for post-stack migration

Abstract

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