是利用振幅随偏移距变化特征分析和识别岩性和油气藏的地震勘探技术。
AVO is a seismic exploration technology using the characteristics of amplitude variation versus offset to recognize the rock types and oil-gas reservoir.
其中阶梯型全倾角偏移既能有效地消除交叉干扰，又能保持大倾角反射波的振幅特性。
The all-dip migration using ladder difference scheme not only effectively removes cross-interference but also preserves amplitude characteristic of steep-dip reflections.
本文使用高阶方程深度偏移方法，并且在计算中采用了一种与差分运算等价的时移法解决了计算中出现的频散和振幅失真问题。
The depth migration with higher-order approximation by time-shift algorithm eliminates the frequency dispersion and amplitude distortion in the calculation process.
考虑振幅几何扩散补偿、散射角度补偿，在迭代反演过程求出最优解，即保幅偏移解。
An optimal solution, which is a true amplitude, is obtained in the process of iteration by considering the weighted factors to compensate the amplitude spreading and the Angle effects with offset.
振幅随偏移距变化关系的研究，近年来深受勘探地球物理学家的青睐。
In recent years, the study of "Amplitude versus Offset" arouses a great interest in exploration geophysicists circle.
比较了近炮检距剖面、叠加剖面、偏移剖面、瞬时振幅剖面与瞬时相位剖面上BSR的显示特征。
The appearances of BSRs oon near-offset profile, stacked profile, migration profile, migration profile, instantaneous amplitude profile and instantaneous phase profile are compared and described.
然而，在振幅随炮检距变化的情况下，即当偏移距范围很大时，无论是反射波的振幅还是极性都发生了非常大的变化。
However, in the presence of amplitude variation with offset (AVO), and particularly at large offsets, reflection coefficients and polarities may differ significantly from those at normal incidence.
粘弹性偏移不但实现了振幅的恢复，而且同时偏移剖面的垂向空间分辨率也得到了提高。
Migration with viscoelastic arithmetic has achieved amplitude recovery, and the seismic data resolution also has been enhanced.
粘弹性偏移不但实现了振幅的恢复，而且同时偏移剖面的垂向空间分辨率也得到了提高。
Migration with viscoelastic arithmetic has achieved amplitude recovery, and the seismic data resolution also has been enhanced.
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