该方法可以根据地质构造的复杂性，灵活地选取各种单程波场延拓算子进行计算，具有很强的适用性。
It can flexibly select continuation operators of various one-way wave fields for computation according to the complexity of geologic structures, thus it has strong applicability.
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.
该方法只需对某一核合成算子进行简单的几何旋转建立合成算子函数，避免了复杂的波场外推。
A surface synthesis operator function is simply constructed by geometrically rotating a certain kernel synthesis operator, instead of complicated wave extrapolations.
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