TIME-VARYING DECONVOLUTION OPERATOR IN GABOR DOMAIN

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JAHDI HANIEH; SIAHKOUHI H.R.

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Paper Information

Journal: Journal of the Earth and Space Physics Year:2008 | Volume:34 | Issue:1 Page(s): 109-123

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Information Journal Paper

Title

TIME-VARYING DECONVOLUTION OPERATOR IN GABOR DOMAIN

Author(s)

JAHDI HANIEH | SIAHKOUHI H.R. | Issue Writer Certificate

Keywords

TIME VARIANT FUNCTIONQ3

TIME VARIANT DECONVOLUTIONQ3

GABOR TRANSFORMQ3

GABOR DECONVOLUTIONQ3

Abstract

Due to the spherical divergence and specifically absorption in the earth, amplitude of a propagating seism wave varies as a function of time. This stretches the wavelet in time and reduces the time (or vertical) resolution of the seismic sections. To overcome the problem one has to apply so called spatial migration or deconvolution on data. Usually the least square Wiener deconvolution is used to boost up the attenuated frequency components. Unfortunately, the Wiener based deconvolution methods assume that the source generated seismic wavelet is stationary (i.e. its frequency content remains unchanged within the record). A method of deconvolution in the Gabor domain is applied in this paper that considers the seismic data as a non-stationary phenomenon.The GABOR TRANSFORM (Equation 1) is a windowed or short time Fourier transform, where the window used to isolate the frequency content of input record in time, is a Gaussian type. According to the uncertainty principle, the GABOR TRANSFORM has the least uncertainty among other windowed Fourier transforms.Please clik on PDF icon to viwe the complet abstract.

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APA: Copy

JAHDI, HANIEH, & SIAHKOUHI, H.R.. (2008). TIME-VARYING DECONVOLUTION OPERATOR IN GABOR DOMAIN. JOURNAL OF THE EARTH AND SPACE PHYSICS, 34(1), 109-123. SID. https://sid.ir/paper/80361/en

Vancouver: Copy

JAHDI HANIEH, SIAHKOUHI H.R.. TIME-VARYING DECONVOLUTION OPERATOR IN GABOR DOMAIN. JOURNAL OF THE EARTH AND SPACE PHYSICS[Internet]. 2008;34(1):109-123. Available from: https://sid.ir/paper/80361/en

IEEE: Copy

HANIEH JAHDI, and H.R. SIAHKOUHI, “TIME-VARYING DECONVOLUTION OPERATOR IN GABOR DOMAIN,” JOURNAL OF THE EARTH AND SPACE PHYSICS, vol. 34, no. 1, pp. 109–123, 2008, [Online]. Available: https://sid.ir/paper/80361/en

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