Unaliased spatial trace interpolation in the f-k domain

Details Unaliased spatial trace interpolation in the f-k domain Unaliased spatial trace interpolation in the f-k domain

1996-08-14

1997-04-01

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

364421, 367 59, G01V 128

Patent

active

056173725

ABSTRACT:
Sparsely spatially-sampled seismic time-scale trace gathers may be aliased for certain spatial and temporal frequencies. Aliasing may be avoided by application of a spatial interpolation scheme that uses the phase difference between the f-k phase spectra of the odd and the even traces to generate an interpolation operator in the f-k domain. The operator is multiplied point-by-point with the f-k transform of the original recorded trace gather. The resulting complex product is inverse transformed to the t-x domain whereupon the interpolated traces are interleaved between the original recorded traces to unwrap the aliased events.

REFERENCES:
patent: 4594693 (1986-06-01), Pann et al.
patent: 4922465 (1990-05-01), Pieprzak et al.
patent: 5206837 (1993-04-01), Beasley et al.
patent: 5235556 (1993-08-01), Monk et al.
Seismic Trace Interpolation in the f-x Domain, Geophysics v. 56, n. 6, pp. 785-794.

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