The finite difference methods based on acoustic or elastic wave equation are very useful tools for wave-field numerical modeling or VSP data synthesizing.
基于声波或弹性波方程的有限差分方法是数值模拟地震波场或合成VSP地震记录的有力工具。
The wave-field continuations along up-going wavefront or down -going wavefront are the two methods we can take to ensure the all -dip migration of wave field.
沿上行波波前或下行波波前进行波场延拓是确保波场全倾角归位仅能采用的两种延拓方法。
You discovered first hand while meditating there, the area exuded a translucent wave field, similar to the mirage you see when observing heat rising from tarmac roads in the height of summer.
你在那里冥想时直接发现了这个情况，此地散发出一个半透明的波场（或者能量场），有点类似你盛夏时在柏油路上看到的因地面升温而产生的幻象。
Extrapolating wave field is most important in the whole process.
在整个计算过程中，波场外推是最为重要的环节。
Wave field continuation can remove much of the energy which propagates along the surface, such as direct waves, ground roll and some random noises.
把波场沿深度外推可以消除与地表有关的“噪音” ，如直达波、面波、声波及在表层传播的随机噪音。
Snapshot of wave field trial result says that this kind of absorptive boundary condition brings good absorption effect except.
波场快照试算结果表明，这种吸收边界条件吸收效果很好，而且形式简单，易于实现。
In this way, corresponding to every single viscoelastic random medium model, we can calculate and gained 6 different wave field characteristic quantities.
这样，对应每一个粘弹性随机介质模型，我们均可计算得到6个不同的波场特征量。
Holographic optical elements (HOE) can transform optical wave field.
全息光学元件能够完成光波场的转换。
Snapshot of wave field trial result says that this kind of absorptive boundary condition brings good absorption effect except its simplicity and easy achievement.
波场快照试算结果表明，这种吸收边界条件吸收效果很好，而且形式简单，易于实现。
The results obviously demonstrate wave diffraction in harbor on condition of boundary reflection. Distribution of wave field in harbor is relatively appropriate.
结果比较清楚地反映出在考虑边界反射条件下波浪绕射情况，港内波浪场的分布比较合理。
This algorithm USES ray tracing to calculate traveltime, and DE - rives reflection amplitude from wave field interface equation.
该算法使用射线追踪计算传播时间，应用波场界面方程计算反射振幅。
The intensity of traveling wave field averaged in a time period demonstrates that the characteristics of doubly localized traveling wave can be well described by the averaged wave field.
最后对一个时间周期上行进波场进行平均后说明，场的平均值可以很好的表征双局部行进波特性。
Model experiments show that it is possible for us to identify lithology and hydrocarbon conditions in abnormal area in terms of wave field characters and images in different media.
模型试验表明，根据波在不同介质中的传播规律，使我们有可能利用波场图像来区分异常区的岩性和含油气特性。
Finally the initial research works of scattered wave field characteristics based on numerical simulation by authors were introduced.
并介绍了作者关于地震散射波场特征数值模拟研究的初步成果。
Finally, the computation of wave reflection and diffraction in the Dalian Harbor indicates that the present method can be widely used for computing the wave field in harbors.
对大连港区内的波浪折射绕射进行了计算，表明本方法可以应用于实际港口的波浪场计算中。
Combing the wave field snapshot with the corresponding velocity section proves to be important in the observing of wave propagation.
将波场快照与速度剖面相结合，可以更好地观测到波的传播过程。
High density spatial sampling enhances wave field continuity and the accuracy of various mathematical transforms, which benefits wave field separation.
高密度采集使波场连续性增强，使得各种数学变换的精度提高，有利于不同波场的分离。
Clear wave field snapshots are obtained through the modeling in homogeneous ti media. The wave field characters accord with theoretical analysis.
均匀ti介质中的模拟获得了非常清晰的波场快照，其波场特征与理论分析能够准确吻合。
It can make up the shortage that only the periodic dots or lines can be made when using laser standing wave field to control the atoms to stack on wafer in atom lithography.
弥补了原子光刻技术中利用激光驻波场控制原子堆积只能制作单一量子点、线等周期性图形的不足。
The result shows that P PEM is a simple, clear and practical original wave field model, which can be widely used in coastal works, such as the selection of harbour sites.
事实证明：P-PEM是一种简洁、实用的原始波场计算模型，适用于海岸工程方案规划比选等诸多领域。
Through total analysis of wave field, it illustrates that SWAN model can rationally reflect the wave field in coastal area of East Zhejiang.
通过综合分述模型计算的波浪场，说明swan模型能够合理地反映浙东沿海的波浪场。
Here we present a new VSP wave field separation method using two-trace recursive filtering.
本文提出一种用二道递归滤波分离vsp波场的新方法。
A given seismic wave field can be described using different kinds of seismic wavelets.
对于一个确定的地震波场，可用不同类型的子波来描述。
Numerical simulation is an important means of recognizing the character of wave field of earthquake.
数值模拟是了解地震波场特征的重要手段。
The wind field has been calculated by the simulation of the pressure field of typhoons, and then the wave field in the region of typhoons has been obtained by use of the tracing method.
通过对台风气压场的模拟得到计算风场，在此基础上采用跟踪计算方法取得台风域内的波浪分布。
Computations reveal the extremely complicated spectral structures of the wave field near a hurricane center.
计算显示出台风中心附近浪场的极端复杂的谱结构。
In this paper, seismic wave propagation in viscoelastic isotropic media is mainly addressed by the technology of wave field numerical simulation.
本文主要是通过波场数值正演模拟技术来研究粘弹性各向同性介质中地震波的传播问题。
According to the characteristic of the wave field data, a simple algorithm is used to calculate the normal vector at the nodes.
文中针对表示波浪面的数据集的特性，采用了一种简单的节点法矢量算法。
These results quantitatively expound the effect of the nonlinear up-down asymmetry of wave profile on the statistical properties of the wave field.
所得结果定量地阐明了波剖面的非线性上下不对称性对波动场统计特征的影响。
These results quantitatively expound the effect of the nonlinear up-down asymmetry of wave profile on the statistical properties of the wave field.
所得结果定量地阐明了波剖面的非线性上下不对称性对波动场统计特征的影响。
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