Wave field continuation can remove much of the energy which propagates along the surface, such as direct waves, ground roll and some random noises.
把波场沿深度外推可以消除与地表有关的“噪音” ，如直达波、面波、声波及在表层传播的随机噪音。
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.
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。
The key to all-dip wave field migration using finite-difference method lies in the continuation direction of wave field.
用有限差分法进行波场全倾角归位的关键在于波场的延拓方向。
The key to all-dip wave field migration using finite-difference method lies in the continuation direction of wave field.
用有限差分法进行波场全倾角归位的关键在于波场的延拓方向。
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