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Keywords: expansion coefficient
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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3407568
... suppress numerical dispersion. Presentation Date: Tuesday, October 13, 2020 Session Start Time: 9:20 AM Presentation Time: 11:25 AM Location: Poster Station 12 Presentation Type: Poster machine learning fd scheme convergence speed artificial intelligence expansion coefficient numerical...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0811
... schlumberger-doll research efficient estimation upstream oil & gas formula artificial intelligence estimation quadrature rule main menu polynomial chaos expansion coefficient polynomial chaos coefficient integration sparse polynomial chaos proxy quadrature point simulation quadrature...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-3288
... implementation with implicit finite difference. The expansion coefficients are obtained through a nonlinear optimization of the dispersion error cost function. The strong-amplitude evanescent energy is attenuated with a frequency-dependent phase shift at each depth step. We test and verify our method...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-2687
... one-way propagator and evaluate two implementations of the amplitude correction. Numerical examples show that the lateral velocity variation related correction term can play a significant role in the asymptotic true-amplitude one-way propagator. Optimization of the expansion coefficients...

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