The full - wave equation methods are adopted, namely the wave field is the solution of wave equation.

本文采用的是全波方程法模拟, 即由方程的解中给出了全波场的值.

The total wave field simulation is realized by this method for the wave pattern conversion and the wave form change in the propagation of the seismic wave.

实现了在微机上用有限差分法对地震波在传播过程中的波型转换及波形变化的全波场模拟。

This method can improve the precision effectively in the wave field simulation.

该方法可有效提高波场模拟精度。

The numerical results clearly reflect the wave propagation process and the phenomena of shear wave splitting and wave-field differences caused by the azimuthal property variations.

数值结果准确地反映了方位各向异性介质中波场的变化过程，可以清晰地观察到横波分裂和方位特征差异等现象。

The effect of time-varied wave field on the diffraction tomography was analyzed.

初步分析了时变入射波场对衍射层析成像的影响。

Fourier finite difference operator can be adopted to ensure good fidelity of seismic wave field in wave field continuation of complicated geology structure, bringing high quality image.

利用傅里叶有限差分算子可保证在复杂构造的波场延拓中，地震波场不失真，成像质量高。此外，本文对傅里叶有限差分算子作了必要的优化。

The effect of time - varied wave field on the diffraction tomography was analyzed.

初步分析了时变入射波场对衍射层析成像的影响.

Wave equation-based prestack depth migration technique can accurately describe the wave field in complex media conditions and perform high resolution imaging.

基于波动方程的叠前深度偏移方法能在复杂介质条件下精确描述波场，且能高精度成像。

The synchronistical measurement for marine pipeline lifting force and surrounding current field in wave field was carried out by introducing a PIV system method.

在波浪场中，利用PIV装置进行水平输油管线升力及其周围流场的同步测量。

An accurate method for time-domain elastic wave field modeling is given by introducing high-order finite element.

在弹性演场正演中，我们通过引入高阶有限单元，给出了一种高精度的时域弹性波场正演方法。