Prestack depth migration is an optimal imaging method for PSV wave.
叠前深度偏移是转换波最佳成像方法。
Prestack reverse time migration requires computing the first breaks time of imaging points.
叠前逆时偏移需要计算成像点的初至时间。
It is stressed that the relationship between prestack processing S/N and resolution is important.
强调了叠前处理信噪比与分辨率关系的重要性。
Therefore, this paper introduces a method of prestack time migration in dealing with such a mass of data.
如何高质量、快速完成叠前时间偏移是一个非常困难的课题。
Presented here is a prestack noise suppression method which is applied to multiple NMO-corrected trace gathers.
本文介绍一种用于动校正之后多个道集上的叠前去噪方法。
Wave equation migration after common receiving point slant stacks (WEMCRPSS) is essentially a prestack migration method.
共接收点倾斜叠加波动方程偏移，本质上是一种叠前偏移方法。
Wave equation prestack depth migration technique is an effective method of seismic data imaginating in complicated surfaces.
波动方程叠前深度偏移技术是复杂地表地震资料成像的有效方法。
The paper introduces a prestack depth migration by nonstationary phase shift method suitable for laterally variable velocity.
介绍一种能够适应介质速度横向变化的非稳态相移算子及其叠前深度偏移方法。
The used seismic data are prestack data:therefore, this method considers the energies of direct wave, refraction wave and multiple wave.
因所用资料是叠前资料，所以该方法考虑了直达波、折射波和多次波能量。
The One-Way Wave Equation Prestack Depth Imagimg operators in the hybrid domain are developed into the software and the processing sequence is built.
利用单程波动方程炮道集叠前深度偏移方法，建立了相关叠前深度偏移处理流程；
Prestack time migration processing is an application technology of combination of theory and experience. Each stage will have an impact on migration imaging.
叠前时间偏移是一项理论与经验紧密结合的应用技术，处理过程中每一环节均会对成像产生影响。
Prestack depth migration is an effective tool for complex geologic body imaging. The quality of its image depends mainly on the accuracy of velocity-depth model.
叠前深度偏移是复杂地质体成像的有力工具，其成像的质量主要取决于所用速度-深度模型的精度。
Noise-removing processing for prestack seismic data is emphatically discussed with refercnce to Mr. Li Qingzhong's one-dimensional iterative noise-removing method.
文中结合李庆忠先生提出的一维迭代去噪方法，重点讨论叠前资料的去噪问题。
Prestack depth migration is an ideal technique for seismic data imaging in the regions with complex structural conditions and severely changeable lateral velocities.
叠前深度偏移技术是解决复杂构造和速度横向变化剧烈地区的地震资料成像问题的理想技术。
The 3-D wave equation prestack depth migration is one of the most important techniques in the structure imaging and the inversion of elastic parameters of complex media.
三维波动方程叠前深度偏移是复杂介质中进行构造成像、弹性参数反演的重要环节。
The paper also introduced the forward simulation of Shenli Oilfield typical model and application of their data volume to study prestack depth migration and design of geometry.
然后介绍了胜利油田典型模型的正演模拟及其数据体在研究叠前深度偏移方法和观测系统设计方面的应用。
The result showed that the illuminated weighting imaging results by wave equation prestack depth migration from relief surface very coincide with the structural configuration of model.
结果表明：起伏地表波动方程叠前深度偏移照明加权成像结果与理论模型构造形态非常吻合。
Prestack depth migration of areal shot records and controlled illumination can get high-quality images by source wavefield controlling and highly efficient areal shot records migration.
面炮组合和控制照明结合的叠前深度偏移通过对震源波场的控制以及高效的面炮偏移能够得到高质量的成像结果。
The numerical test and real application show that the computation speed and accuracy can be increased by the reflectivity method, and which lays solid foundation for prestack inversion.
模型试算和实际应用均表明该方法能够提高计算速度和计算精度。
Prestack migration of common shot records is very sensitive to the velocity input, and demands a kind of continuation formula which can adapt to both vertical and lateral velocity variations.
共炮记录叠前偏移对输入的速度非常敏感，要求偏移中所使用的延拓公式能较为精确地适应速度的纵横向变化。
Analysis of the results suggest that poststack depth migration has more advantages in improving S/N ratio, resolution and image effect than poststack time migration and prestack time migration.
对比分析了叠前深度偏移、叠后时间偏移和叠前时间偏移结果，分析表明，叠前深度偏移技术能较好地改善该区复杂构造的成像质量，提高资料的信噪比和分辨率。
Wave equation migration can preserve the kinetic characteristics of wave field, so this paper applies common-azimuth prestack depth migration technology to realize 3D process for 2D seismic data.
波动方程偏移保持了波场动力学特征，依此本文应用共方位角叠前深度偏移技术来实现二维资料三维化处理。
The paper introduced the prestack depth migration from relief surface based on implicit wide-angle finite-difference one-way propagation operator and used SEG piedmont nappe structure model for test.
本文介绍了基于广角隐式有限差分单程波传播算子的起伏地表叠前深度偏移方法，并对SEG山前带推覆构造模型进行了检验。
The paper introduced the prestack depth migration from relief surface based on implicit wide-angle finite-difference one-way propagation operator and used SEG piedmont nappe structure model for test.
本文介绍了基于广角隐式有限差分单程波传播算子的起伏地表叠前深度偏移方法，并对SEG山前带推覆构造模型进行了检验。
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