2007
DOI: 10.1190/1.2757616
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3D diffraction modeling of singly scattered acoustic wavefields based on the combination of surface integral propagators and transmission operators

Abstract: We present an improved method for modeling 3D acoustic wavefields scattered at smooth curved interfaces. The approach is based on a high-frequency approximation of surface integral propagators and a correct description of their boundary values in terms of transmission operators. The main improvement is a uniform local approximation of these operators in the form of effective reflection and transmission coefficients. We show that the effective coefficients represent a generalization of the plane-wave coefficien… Show more

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Cited by 36 publications
(37 citation statements)
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“…A point source exciting a spherical P-wave is located in the upper half-space. The ERC represents a ratio of the reflected spherical wave to the incident spherical wave (Ayzenberg et al, 2007). For the isotropic/HTI interface at the point of a receiver, it has the form similar to ERC for isotropic/VTI interface (Ayzenberg et al, 2009) …”
Section: Effective Reflection Coefficient For the Isotropic/hti Intermentioning
confidence: 99%
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“…A point source exciting a spherical P-wave is located in the upper half-space. The ERC represents a ratio of the reflected spherical wave to the incident spherical wave (Ayzenberg et al, 2007). For the isotropic/HTI interface at the point of a receiver, it has the form similar to ERC for isotropic/VTI interface (Ayzenberg et al, 2009) …”
Section: Effective Reflection Coefficient For the Isotropic/hti Intermentioning
confidence: 99%
“…Recently developed spherical and effective reflection coefficients (ERCs) for isotropic/isotropic interfaces (Ayzenberg et al, 2007;Ursenbach et al, 2007) provide better insights of the reflection behavior observed around and beyond the critical angle. Extension of ERCs to isotropic/VTI interfaces (Ayzenberg et al, 2009) shows their sensitivity to anisotropy parameters.…”
Section: Introductionmentioning
confidence: 99%
“…ПВКО нечувствительны к кривизне границ и неприменимы на околокритических удалениях, где образуется головная волна, а также в закритической области, где отраженная и головная волны интерферируют. Мы предложили новый подход к AVO-инверсии, основанный на эффективных коэффициентах отражения (ЭКО) [Ayzenberg et al, 2007[Ayzenberg et al, , 2009, которые обобщают ПВКО для неплоских волн, криволинейных границ и сейсмических частот. …”
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“…Эффективные коэффициенты отражения. Отра жен -ную P-волну в приемнике x в операторном виде можно представить как [Ayzenberg et al, 2009] ( ) ( ) ( ) ( ) [Ayzenberg et al, 2007]. Связано это с тем, что при от-ражении от криволинейной границы реальные фронты волн искажаются, и при выводе формул реальная волна заменяется кажущейся сферической волной, падающей на плоскость, касательную к криволинейной границе в точке отражения.…”
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