1) Post-stack reverse-time depth migration
叠后逆时深度偏移
1.
The numerical results show that this method not only increases difference precision of temporal and spatial derivatives,but also has advantages of higher efficiency and lower dispersion compared with traditional centered finite-difference method;therefore,it can be extended to 3D scalar acoustic high-precision forward numerical simulation and post-stack reverse-time depth migration.
模型试算结果表明,与传统的中心有限差分法相比,本文方法不仅可以快速提高时空导数的差分精度,而且具有频散小、计算效率高等特点,可推广应用于三维标量声波高精度正演数值模拟和叠后逆时深度偏移。
2) pre-stack and po
叠前、叠后弹性波逆时深度偏移成像
3) prestack reverse-time depth migration
叠前逆时深度偏移
1.
The prestack reverse-time depth migration scheme was studied based on elastic wave equation for two wavefield components recorded in 2D isotropic media.
研究了二维各向同性介质中两分量记录的基于弹性波标量波动方程的叠前逆时深度偏移方法。
6) reverse-time depth migration
逆时深度偏移
1.
Poststack reverse-time depth migration for anisotropic elastic waves;
各向异性弹性波叠后逆时深度偏移
2.
And the paper uses the reverse-time depth migration method to realize migration of multiwave and multicomponent informations.
作者从弹性波动方程出发,用虚谱法正演模拟了横向各向同性介质中弹性波场,用弹性波多分量联合逆时深度偏移法,并在计算中很好地解决了边界反射问题,实现了多波多分量资料的偏移,获得了一些与各向异性介质有关的波场信息和认识。
补充资料：叠后
【诗文】：
事业无成耻艺成，南宫起草旧连名。
劝君火急添功用，趁取当时二妙声。
【注释】：
【出处】：
全唐诗：卷352-17
事业无成耻艺成，南宫起草旧连名。
劝君火急添功用，趁取当时二妙声。
【注释】：
【出处】：
全唐诗：卷352-17
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条