pre-stack time migration 叠前时间偏移
d pre-stack time migration 三维叠前时间偏移
pre-stack time migration image 叠前时间偏移成像
Kirchhoff Pre-stack Time Migration 克希霍夫迭前时间偏移
3 d pre-stack time migration 三维叠前时间偏移
pre-stack time migration and imaging 叠前时间偏移成像
time migration after stack 叠后时间偏移
pre-stack reverse time migration 叠前逆时偏移
pre-stack kirchhoff time migration 叠前克希霍夫时间偏移技术
Common focus point (CFP) migration based on the equal travel-time principle is a kind of pre-stack depth migration method through focusing in both emission and detection.
共聚焦点(CFP)偏移是基于等时原理，通过激发聚焦和检波聚焦的双聚焦实现叠前深度偏移的地震成像方法。
As the most physical of the shot-profile wave equation pre-stack depth migration involving huge extrapolation calculation, the calculation is extremely time-consuming and less efficient.
作为最具物理性的共炮点道集的波动方程叠前深度偏移，涉及庞大的波场外推计算量，计算极其耗时，效率较低。
At the same time, the complex characteristics of underground structure make conventional stack and post-stack migration methods can not accurately imaging.
同时，由于地下复杂构造特征使得常规叠加和叠后偏移方法不能准确的成像。
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