1) one-way wave extrapolation
单程波外推
1.
The principles of secondary reflection wave imaging technology based on one-way wave extrapolation are as follows:based on the conventional down-going wave field continuation of shot points and the up-going wave field continuation of the receivers,the down-going wave field continuation of the receivers is carried out again.
基于单程波外推方法的二次反射波成像技术基本原理是:在将地震波场进行炮点下行波和检波点上行波常规波场延拓的基础上,进一步对检波点波场进行下行波延拓,对延拓的3个波场通过上、下行波两两交叉相关,进行上行和下行波场成像,该技术具有类似于逆时偏移的功能。
2) wave field extrapolation
波场外推
1.
Wave equation datuming by wave field extrapolation based on hybrid method;
基于混合法波场外推的波动方程基准面校正
2.
The algorithm uses the technology of wave field extrapolation and the wave equation migration by finite difference approach,which can be used in common offset gathers,for 3D material requires common offset gathers with the same azimut.
该算法应用波场外推的技术及波动方程偏移的有限差分算法,可在共偏移道集上实现,对于3D资料须应用同方位角共偏移距道集。
3.
In this paper, the method of wave field extrapolation and decomposition of seismic compound wave in viscoeleastic medium is presented, based on wave equation.
从粘弹性波动方程出发，建立了一种地震散射波场纵横向高分辨波场外推方法。
3) wavelet extrapolation
子波外推
1.
Forward-inversive horizon calibration and wavelet extrapolation in 3-D wide-band restriction inversion;
三维宽带约束反演中的正反演联合层位标定及子波外推技术
4) wavefield extrapolation
波场外推
1.
Near offset wavefield extrapolation based on parabolic Radon transform;
抛物Radon变换法近偏移距波场外推
2.
Influence of aperture angle on precision of 3D wavefield extrapolation.;
孔径角对三维波场外推精度的影响
5) echo extrapolation
回波外推
6) external work-travel
外推程
补充资料：外推云
外推云 外推云 病证名。见清·顾锡《银海指南》卷二。眼生翳障，凡自下而向上发展，且生在黑珠外者，则名外推云。治宜结合眼部及全身情况辨证施治。
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