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Showing 5,187 Results. Searched 200,293 documents.
-- no title --
user
Search and Discovery.com
... be reconstructed using Fourier methods. In this case the Fourier coefficients of the irregularly sampled data are retrieved by inverting the inverse Fourier operator...
Unknown
-- no title --
user
Search and Discovery.com
... be reconstructed using Fourier methods. In this case the Fourier coefficients of the irregularly sampled data are retrieved by inverting the inverse Fourier operator...
Unknown
Abstracts: Fractional Fourier Transform in Coherent Noise Attenuation; #90173 (2015)
K. H. Miah and M. D. Sacchi
Search and Discovery.com
...Abstracts: Fractional Fourier Transform in Coherent Noise Attenuation; #90173 (2015) K. H. Miah and M. D. Sacchi AAPG Search and Discovery Article...
2015
Enhancing reservoir simulation workflows by coupling a GPU-accelerated full-physics simulator with a Fourier neural operator-based surrogate model
Karthik Mukundakrishnan, Klaus Wiegand, Vidyasagar Ananthan, Daniel Kahn, Dmitriy Tischekin, Marcos Kajita, Clement Etienam
International Meeting for Applied Geoscience and Energy (IMAGE)
...es, followed by an inverse Fourier transform ℱ −1 . The network activation 𝜎 is done in the soltution (physical) space. P and Q are the lifting and projecti...
2024
Abstract: Anisotropy-Preserving 5D Interpolation by Hybrid Fourier Transform; #90224 (2015)
Juefu Wang and Shaowu Wang
Search and Discovery.com
...Abstract: Anisotropy-Preserving 5D Interpolation by Hybrid Fourier Transform; #90224 (2015) Juefu Wang and Shaowu Wang Datapages/Search and Discovery...
2015
Abstracts: Interpolation of Nonstationary Seismic Records using a Fast Generalized Fourier Transform; #90173 (2015)
Mostafa Naghizadeh and Kristopher A. Innanen
Search and Discovery.com
.... The output is illustrated in Figure 1c. Each individual inverse Fourier transform is represented by a particular symbol in Figure 1c (square...
2015
Application of Inverse-Q Filter and Deconvolution to Improve Seismic Data Quality in the Deep Section
Deddy F. Djanawir, Frans Langitan
Indonesian Petroleum Association
... Report, p. 26. Hargreaves, N. D., Calvert, A. J., 1991. Inverse Q Filtering by Fourier Transform, Geophysics, v. 56, p. 519-527. Lindseth, R. O...
2004
Fast viscoacoustic forward modeling method based on U-net Fourier neural operator
Wenbin Tian, Yang Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... ， which are in the wavenumber domains, separately represent Fourier transform ， linear transform and inverse Fourier transform; W stands for local...
2023
Abstract: Properties of Gabor Operators for Seismic Imaging; #90171 (2013)
Michael P. Lamoureux and Gary F. Margrave
Search and Discovery.com
...), wm is a window function for some index m, F is the Fourier transform operator, and ω is the frequency variable. An inverse to the Gabor transform...
2013
Abstract: Fourier Domain Regularization 5D and More; #90174 (2014)
V. Khatchatrian
Search and Discovery.com
.... After inverse wave number Fourier transform, the resulting grid of traces is first reduced to only the original trace positions. Those “original...
2014
Abstract: Tau-P Seismic Data Processing: Fast Slant Stack Using the Hartley Transform
Leong Lap Sau, Ng Tong San
Geological Society of Malaysia (GSM)
... be reconstructed by an inverse transform after windowing in the T-P plane. Cylindrical slant stack procedures permit a plane-wave decomposition...
1991
Fracture Analysis at St
Search and Discovery.com
N/A
Deep learning Laplace-Fourier full-waveform inversion with virtual supershot gathers
Lei Fu, Daniele Colombo, Weichang Li, Ernesto Sandoval-Curiel, Ersan Turkoglu
International Meeting for Applied Geoscience and Energy (IMAGE)
...Deep learning Laplace-Fourier full-waveform inversion with virtual supershot gathers Lei Fu, Daniele Colombo, Weichang Li, Ernesto Sandoval-Curiel...
2022
Abstract: Five Dimensional Seismic Data Interpolation; #90171 (2013)
Daniel Trad
Search and Discovery.com
... this constraint requires a multidimensional Fourier Transform Fnd. To solve for the unknown data, a cost function is defined and minimized using standard...
2013
Abstracts: Application of Fractional Fourier Transform in Cepstrum Analysis; #90173 (2015)
K. H. Miah, R. H. Herrera, M. van der Baan, and M. D. Sacchi
Search and Discovery.com
... deconvolution using cepstrum analysis has been an effective method for wavelet estimation for decades. In general, the inverse of the Fourier transform...
2015
Abstracts: Evaluation of a New 5D Seismic Volume Reconstruction Method: Tensor Completion versus Fourier Reconstruction; #90173 (2015)
Nadia Kreimer and Mauricio D. Sacchi
Search and Discovery.com
.... The operator indicates the 4D inverse Fourier transform. The cost function (3) is minimized using Iterative Reweighted Least-squares (IRLS) following...
2015
Abstract: Stabilizing Seismic Absorption Compensation; #90171 (2013)
Changjun Zhang
Search and Discovery.com
... resolution discrete Fourier transform: IEEE Transactions on Signal Processing, 46, 31–38. Tarantola, A., 1987, Inverse problem theory. Methods for data...
2013
Abstract: 5D Interpolation of Seismic Data with Combination of MWNI and POCs Algorithm; #90187 (2014)
Jianhua Pan, Gerry Schlosser, Elvis Floreani, and Robert Tilson
Search and Discovery.com
..., an inverse Fourier transformation of the results of the data with the threshold applied, and finally the reinsertion of the values of the original...
2014
Efficient subsurface carbon storage modeling with Fourier neural operator
Suraj Pawar, Pandu Devarakota, Faruk O. Alpak, Jeroen Snippe, Detlef Hohl
International Meeting for Applied Geoscience and Energy (IMAGE)
..., the Fourier layer can be written as follows: ℱ ℛ ∙ ℱ(𝑧 ) , where ℱ is the Fast Fourier Transform (FFT) and is applied each channel...
2023
Multi-Step Auto-Regressive Reconstruction of Nonuniformly Sampled, Aliased Seismic Records; #41563 (2015)
M. Naghizadeh, M. D. Sacchi
Search and Discovery.com
... coefficients of the irregularly sampled data are retrieved by inverting the inverse Fourier operator with band limiting (Duijndam et al., 1999...
2015
Abstracts: The Conventional and Non-conventional Seismic Differencing; #90173 (2015)
Vanja Vracar and Robert J. Ferguson
Search and Discovery.com
..., t, and distance, d, domain are converted to frequency, f , and wavenumber, , domain invoking Fast Fourier Transform (FFT) and Inverse Fast Fourier Transform...
2015
Residual noise attenuation of poststack seismic data using t-p-x decomposition
Sujith Swaminadhan, Shuvajit Bhattacharya, Sergey Fomel
International Meeting for Applied Geoscience and Energy (IMAGE)
... as the norm. An inverse Fourier transform along the time dimension gives the data in the t-p-x domain, where the events in the original t-x domain...
2024
Robust reconstruction via orthogonal matching pursuit with Fourier operators
Ji Li, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... data processing literature and include Minimum Weighted Norm Interpolation (MWNI) (Liu and Sacchi, 2004), Antileakage Fourier Transform (ALFT) (Xu et al...
2022
Orthorhombic AVAZ inversion in the Laplace-Fourier domain
Lin Li, Jinmiao Zhang, Guangzhi Zhang, Zhenyu Zhu, Jiajia Zhang, Chao Li, Xinpeng Pan
International Meeting for Applied Geoscience and Energy (IMAGE)
... sin 2 cos 2 1 tan 2 sin 2 . 33 2 g m ln VP (6) The Laplace-Fourier transform of a time-continuous seismic signal is given...
2022
Time-Domain High-Resolution Radon Transform (Geophysics Paper 4)
Michel Schonewille, Peter Aaron, Carl Notfors
Geological Society of Malaysia (GSM)
... shows the result after the inverse Fourier transform where the vertical axis is now time and the horizontal curvature. The data in the time-curvature...
2008