目前使用的常规dMO数据处理方法忽略了速度的影响，认为D MO处理对速度不像全偏移那样敏感。
Ordinary DMO processing methods neglect the influence of velocity because some people think that DMO processing is less sensitive to velocity than full migration processing.
其中阶梯型全倾角偏移既能有效地消除交叉干扰，又能保持大倾角反射波的振幅特性。
The all-dip migration using ladder difference scheme not only effectively removes cross-interference but also preserves amplitude characteristic of steep-dip reflections.
算法结合误差曲面特性以及运动矢量中心偏移特性，得到最佳参考运动矢量；利用运动矢量的方向和强度信息，确定搜索方向，切换搜索模式，搜索的同时应用全零块的中止准则。
It gets the best reference motion vectors from the error - surface and the center deviation characteristics, and it USES the direction and intensity information to choose the proper searching mode.
在该系统中采用了自行研制设计的实现全光纤化的两个关键光纤元件：普通单模光纤频率偏移器和普通单模光纤偏振控制器，介绍了此两光纤元件的基本工作原理和设计方法。
Two novel fibre devices, fibre optic frequency shifter and fibre optic polarization controller, are employed in this system. The principle and design method for the two key devices are described.
为此，以全三维地震偏移资料为基础的岩性圈闭研究得以开展。
For this reason, the lithological trap investigation has been carried out on the basis of full 3-d seismic migration data.
为此，以全三维地震偏移资料为基础的岩性圈闭研究得以开展。
For this reason, the lithological trap investigation has been carried out on the basis of full 3-d seismic migration data.
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