Seismic migration imaging is an important component to seismic data processing.
地震偏移成像是地震资料处理的重要组成部分。
Simultaneously, a migration imaging technique using the whole MT observed frequency bands information was realized.
同时实现了可包含所有观测频率信息的全频段MT偏移成像技术。
Because of the ambiguity of seismic migration velocity, the quality of seismic migration imaging always bores people.
由于地震偏移速度的不确定性,偏移成像的质量很难得到保证。
The study about migration imaging method in electromagnetic sounding is the focus and the advanced subject in the field.
瞬变电磁测深的偏移成像方法技术的研究,是目前在该领域研究的焦点和前沿课题。
This paper has made some searching in Complex structure fine pre-stack processing and pre-stack migration imaging, and has achieved some results.
本文就这两个问题,在复杂构造叠前精细处理、复杂构造叠前偏移成像等方面开展了一些探索,取得了一定的效果。
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。
According to theoretical analysis, a large number of numerical simulation experiments were conducted to quantitative analysis of resolution of seismic migration imaging.
在理论分析的基础上,对地震偏移成像分辨率的定量分析过程进行了数值模拟实验。
Theoretical analysis shows that near field 3-d range migration imaging technique can reduce computational complexity in much degree by contrast with back propagation algorithm.
理论分析表明:近场三维距离偏移算法与后向投影算法相比,能在较大程度上减少运算量。
The conventional velocity analysis does not consider the influence of the NMO velocity varying with offset, making the results not ideal, leading to a poor stacking and migration imaging.
由于动校正速度是随偏移距变化而变化的,而常规速度分析并没有考虑这一因素,动校正效果往往不是很理想,从而影响资料的叠加和成像效果。
The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture Angle of migration processing.
结果表明,影响偏移成像水平分辨率的主要参数是介质速度、地震子波主频和偏移处理的孔径角。
Migration though resolution cell(MTRC) of scatters often occurs in inverse synthetic aperture radar(ISAR) imaging.
逆合成孔径雷达(ISAR)转台成像中散射点越距离单元徙动(MTRC)时有发生。
It can act as an interim key step of imaging complex structure, which plays an important role for ensuring quality of velocity analysis and depth migration.
它可以作为复杂构造成像的一个关键的中间环节,对于提高最终的速度分析质量和深度偏移成像效果是至关重要的。
Plane wave has the overall direction, compared with the normal migration, the plane-wave imaging results can be comparable to, and has a high computational efficiency.
平面波具有全局方向性,相对逐炮偏移而言,平面波偏移成像的结果是可以与其相相比的,并有很高的计算效率。
Using time depth conversion and depth migration technologies for data processing, more proper structural imaging profiles in steep structure were obtained.
高陡构造资料处理采用层速度时深转换技术和射线深度偏移技术,将得到比较准确的构造成像剖面。
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 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。
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。
For enhancing the migrated imaging, these techniques, like DMO, migration velocity field smoothing and pre-stack depth migration, are used.
采用DMO、偏移速度场平滑、叠前深度偏移等技术提高偏移成像精度。
Reverse time migration (RTM) is more applicable for the imaging of complex structures than one-way wave-equation migration and Kirchhoff integral migration.
逆时偏移比单程波波动方程偏移和克希霍夫积分偏移更适于复杂构造成像。
The technique of seismic pre-stack depth migration is used to correctly implement the complex structural imaging.
采用地震造前深度偏移技术,使复杂构造正确成像。
A brand new kind of approach is presented for seismic migration processing-Common Focus Point (CFP) imaging techniques in this paper.
提出一种全新的地震偏移处理方法—共聚焦点(CFP)成像技术。
At the same time, the complex characteristics of underground structure make conventional stack and post-stack migration methods can not accurately imaging.
同时,由于地下复杂构造特征使得常规叠加和叠后偏移方法不能准确的成像。
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。
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。
Although the wave field based pre-stack depth migration is the most reliable method for complex structure imaging, it has a high computation cost and a poor adaptation to geometry.
基于波场延拓的叠前深度偏移是实现复杂构造地质体成像的可靠方法,但存在着计算量大、对观测系统适应性差等缺点。
In the research on the SAR imaging algorithm, range Doppler algorithm and range migration algorithm are implemented.
在对合成孔径雷达成像算法的研究中,实现了距离多普勒算法和距离徙动算法。
In the research on the SAR imaging algorithm, range Doppler algorithm and range migration algorithm are implemented.
在对合成孔径雷达成像算法的研究中,实现了距离多普勒算法和距离徙动算法。
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