RECONSTRUCTION OF SPATIALLY NONUNIFORM SAMPLED SEISMIC DATA

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KASHKOULI MOZHGAN; SIAHKOUHI H.R.

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Journal: JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT) Year:2009 | Volume:35 | Issue:2 (SECTION: GEOLOGY) Page(s): 21-26

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Information Journal Paper

Title

RECONSTRUCTION OF SPATIALLY NONUNIFORM SAMPLED SEISMIC DATA

Author(s)

KASHKOULI MOZHGAN | SIAHKOUHI H.R. | Issue Writer Certificate

Keywords

TRACE RECONSTRUCTIONQ3

NON-UNIFORM SAMPLINGQ3

NON-UNIFORM DISCRETE FOURIER TRANSFORMQ3

Abstract

The objective of exploration seismology is to measure accurately reflected wavefields from subsurface interfaces in order to generate an image of the geological formations. More often the seismic data is non-uniformly sampled, i.e. the data is not acquired on an equidistantly spaced grid. This may result in artifacts during data processing that complicate interpretation. Sampling may be nonuniform because of human-related reasons such as: 1. Faulty equipment and positioning errors, 2. It may be due to environmental circumstances, such as cable feathering in marine acquisition induced by ocean currents or 3. Due to inaccessible areas in land acquisition (cities, rivers, and canyons).The generation of uniformly sampled data from nonuniformly sampled data is called reconstruction and many different methods to reconstruct seismic data have been published over the years. The method used in this paper is called reconstruction of nonuniformly sampled data with least squares Fourier transform. It is based on estimating the Fourier coefficients that describe the non-uniformly sampled data, and once these coefficients have been found the signal can be reconstructed on any suitable grid via an inverse Fourier transformation. The efficiency of the method is evaluated on both real and synthetic seismic. All necessary codes were written in MATLAB environment.

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APA: Copy

KASHKOULI, MOZHGAN, & SIAHKOUHI, H.R.. (2009). RECONSTRUCTION OF SPATIALLY NONUNIFORM SAMPLED SEISMIC DATA. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), 35(2 (SECTION: GEOLOGY)), 21-26. SID. https://sid.ir/paper/2139/en

Vancouver: Copy

KASHKOULI MOZHGAN, SIAHKOUHI H.R.. RECONSTRUCTION OF SPATIALLY NONUNIFORM SAMPLED SEISMIC DATA. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT)[Internet]. 2009;35(2 (SECTION: GEOLOGY)):21-26. Available from: https://sid.ir/paper/2139/en

IEEE: Copy

MOZHGAN KASHKOULI, and H.R. SIAHKOUHI, “RECONSTRUCTION OF SPATIALLY NONUNIFORM SAMPLED SEISMIC DATA,” JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), vol. 35, no. 2 (SECTION: GEOLOGY), pp. 21–26, 2009, [Online]. Available: https://sid.ir/paper/2139/en

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