此外，本文对傅里叶有限差分算子作了必要的优化。
In addition, Fourier finite difference operator is optimized desirably.
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。
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.
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.
通过改进傅立叶有限差分的延拓算子，补偿了几何扩散损失引起的振幅误差。
We improved FFD extrapolation operator to compensate the amplitude difference generated by geometry diffusion loss.
通过改进傅立叶有限差分的延拓算子，补偿了几何扩散损失引起的振幅误差。
We improved FFD extrapolation operator to compensate the amplitude difference generated by geometry diffusion loss.
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