1) excitation-time imaging condition
激发时间成像条件
1.
Calculation on the excitation-time imaging condition is very important work in prestack reverse-time migration.
激发时间成像条件的求取是叠前逆时偏移的难点之一,本文采用求解程函方程的方法得到地下各点的初至波走时,以此作为叠前逆时偏移的成像条件。
2) time-shift imaging condition
时移成像条件
1.
Prestack depth migration based on wave equation using time-shift imaging condition
时移成像条件下的波动方程叠前深度偏移
3) imaging condition
成像条件
1.
Progress in research of imaging condition for wave equation migration;
波动方程偏移中的成像条件研究进展
2.
An application of imaging condition to pre-stack depth migration of wave equation;
成像条件在波动方程叠前深度偏移中的应用
3.
On the basis of imaging condition of deconvolution,the converted wave amplitude-preserved prestack time migration formula on common-shot gather was deduced by using Kirchhoff-Helmholtz integration.
根据反褶积成像条件,利用Kirchhoff-Helmholtz积分推导出转换波的共炮保幅叠前时间偏移公式。
4) shooting condition
激发条件
1.
Through improving shooting conditions and the quality of single shot and designing scientific and rational observation systems with forward modeling technology, the signal - to - noi.
通过改善激发条件提高单炮品质,应用正演模拟技术设计科学合理的观测系统,使地震剖面的信噪比、分辨率明显提高,获得了完整的南部陡坡带资料,满足了构造解释的需要。
5) Excitation Condition
激发条件
6) shot condition
激发条件
1.
Acceleration sensors were planted in borehole and on surface to de-termine the frequency spectra of near-source seismic waves which were generatedfrom different shot conditions (depth, charge and lithology).
其方法是将地震加速度传感器分别置于井下和地表,测试来自不同激发条件(井深、药量及岩性)的近源地震波激发频谱,并与用地震检波器同时接收的地震信号进行对比,以验证其结果的精度。
补充资料:单次激发回波平面成像
单次激发回波平面成像
磁共振成像术语。磁共振快速成像的方法之一。仅使用一次射频(RF)脉冲激励来获得图像的回波平面成像(EPI)方式。在EPI数据采集过程中令读出梯度快速往返振荡,产生一个相位编码彼此独立的梯度回波链,最终形成一幅图像。单次激发EPI采集时间短,一般仅为50~100ms,但存在着信号强度低、空间分辨率低、视野受限、磁敏感性伪影明显等缺点,这些缺点随技术的进步正在不断地克服。
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