1) pre-stack and po
叠前、叠后弹性波逆时深度偏移成像
2) 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。
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。
5) prestack reverse-time migration
叠前逆时偏移
1.
Wave-equation finite-element prestack reverse-time migration;
波动方程有限元叠前逆时偏移
6) converted wave prestack depth migration
转换波叠前深度偏移
补充资料：叠前
【诗文】：
小学新翻墨沼波，羡君琼树散枝柯。
左家弄玉唯娇女，空觉庭前鸟迹多。
【注释】：
【出处】：
全唐诗：卷352-16
小学新翻墨沼波，羡君琼树散枝柯。
左家弄玉唯娇女，空觉庭前鸟迹多。
【注释】：
【出处】：
全唐诗：卷352-16
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