1) wave field upward continuation
波场上延
1.
"wave field downward continuation" and "wave field upward continuation" are valid way to solve the problem of irregular surface migration.
双复杂条件下的叠前深度偏移方法是解决复杂地表条件和复杂地质构造成像的有效手段,基于"逐步累加"的"直接下延"法和"波场上延"法都是解决复杂地表成像的有效手段。
2.
According to zero velocity layer brought out by Beasley and Lynn,and the method of summation step by step put forward by Reshef,and the characteristics of wave propagation in real media and wave stacking,the method of wave field upward continuation to realize wave-equation pre-stack depth migration and imaging based on phase shift(in time.
借鉴Beasley和Lynn提出的“零速层”的概念与Reshef提出的“逐步累加”法的思路,根据地震波在真实介质中的传播特性及波的可叠加性,利用“波场上延”法,实现基于相移(时间域)法上延和频率空间域有限差分(深度域)法(ω-xFD)上延的波动方程法叠前深度偏移成像。
2) wavefield continuation
波场延拓
1.
Combined datum correction of tomography inversion with wavefield continuation under complex near surface condition.;
复杂近地表层析反演与波场延拓联合基准面校正
2.
Forward simulation of wavefield continuation at shot point appropriate for fluctuate surface
适合起伏地表的炮点波场延拓正演模拟
3.
Topics include design of seismic acquisition geometry based on illumination analysis, noise elimination with wavefield continuation, statics with wavefield continuation, prestack time/ depth migration techniques, construction and update of velocity model, and attribute analysis in depth-domain.
系统介绍了深度域处理解释技术的概念,包括基于照明分析的地震采集设计技术、波场延拓噪音消除技 术、波场延拓静校正技术、叠前时间／深度偏移成像技术、速度模型建立及修正技术和深度域属性分析技术等,并 展望了该技术的发展前景。
3) wave field continuation
波场延拓
1.
A new prestack depth migration method that is based on wave field continuation has been developed by combining physical model of plane wave synthesizing with Fourier finite difference operator for wave field continuation.
本文将平面波合成的物理模型与傅里叶有限差分波场延拓算子相结合，提出了一种新的基于波场延拓的叠前深度偏移方法。
2.
Making a new approach to study this noise by us is using wave character of scattered wave,by post stack wave field continuation to make imaged,and then make it attenuated by means .
利用散射波的波动特性 ,在叠后通过波场延拓使其聚焦成像 ,然后通过压制强噪声的手段将其衰减 ,是我们对这种噪声研究的一种新的探索。
3.
In order to solve the problem of influence of complicated surface velocity change on reflection wave,on the basis of tomographic inversion of first break surface model,the paper studied theory and method for surface model correction by wave field continuation,and formed a suit of effective calculation method.
波场延拓表层模型校正 。
4) Wavefield extrapolation
波场延拓
1.
In addition,in order to raise the image accuracy of complex layer and the stability of wavefield extrapolation formula, the scattered wavefield formula is improved.
此外,为进一步提高复杂地层的成像精度和波场延拓算子的稳定性,对散射波场的计算公式作了改进。
2.
This thesis bases on the acoustic wave equation, uses the wavefield extrapolation operator in frequency-wavenumber domain to analyze the migration velocity error.
声学波动方程描述了声波动现象的物理本质，本文基于声学波动方程，借助于频率波数域的波场延拓算子来开展偏移速度误差的分析。
3.
The paper integrates and researches the wavefield extrapolation operator for lateral variation of velocity, analysis of the wavefield characteristic, forward modeling and depth migration of prestack and poststack seismic wavefield, creation of wavelet, design of the model with fracture and cavity, and computation of reflectivity.
本文围绕缝洞储层地震波场正演与偏移问题，对横向变速波场延拓算子；叠前与叠后正演模拟；叠前与叠后深度偏移；子波的生成；缝洞模型的设计、反射系数的求取、正演、偏移及其波场特征分析进行了一体化研究。
6) upward-continued field
向上延拓场
补充资料：提波延那
【提波延那】
（人名）又作提波耶那，仙人名。辅行四曰：“如婆沙中云：佛未出时，帝释常诣提婆延那仙人所听法，舍脂（帝释夫人）念帝释舍我欲诣余女隐形上车，到仙人所，帝释乃见之言：仙人不欲见女，汝当还去。不肯去。帝释以莲荷茎打之，舍脂乃以软语谢。诸仙闻声起欲，螺髻落地失通。”又佛本行集经十六曰：“昔迦尸国有一仙人，名提波耶那，隋言埏上生，被孙陀利淫女诳惑。”梵Devayana。
（人名）又作提波耶那，仙人名。辅行四曰：“如婆沙中云：佛未出时，帝释常诣提婆延那仙人所听法，舍脂（帝释夫人）念帝释舍我欲诣余女隐形上车，到仙人所，帝释乃见之言：仙人不欲见女，汝当还去。不肯去。帝释以莲荷茎打之，舍脂乃以软语谢。诸仙闻声起欲，螺髻落地失通。”又佛本行集经十六曰：“昔迦尸国有一仙人，名提波耶那，隋言埏上生，被孙陀利淫女诳惑。”梵Devayana。
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