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 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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
Then three spotlight mode SAR imaging algorithms are discussed and compared, including polar format (PF) algorithm, chirp scaling (CS) algorithm and range migration (rm) algorithm.
然后重点对三种聚束式SAR成像算法进行了讨论与比较，包括极坐标格式(PF)算法、线性调频测绘(CS)算法和距离走动(RM)算法。
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。
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 theory of inspects inter-quality of fruit using spectroscopy and imaging is light migration in fruit tissue.
水果组织内光子传输特性是利用光谱和计算机图像检测农产品内在品质的理论基础。
Some crucial issues, such as model of echo, resolution and range migration are explained and the standard rd imaging algorithm is deduced.
对其中一些诸如回波信号模型、分辨率、距离徙动等关键问题进行了介绍，并详细推导了标准的距离-多普勒算法。
Some crucial issues, such as model of echo, resolution and range migration are explained and the standard rd imaging algorithm is deduced.
对其中一些诸如回波信号模型、分辨率、距离徙动等关键问题进行了介绍，并详细推导了标准的距离-多普勒算法。
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