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空间—频率域SCHRODINGER 方程偏移,王咏娟、许云在时空域坐标变换和傅氏变换的基础上,可用有限差分法求解SCHRODINGER方程实现有限差分偏移。SCHRODINGER 方程不含空间坐标z的二阶导数项,因此满足解的存在与唯一性定理。文中具体讨论了方程数值求解算法及差分格式。该方法无倾角限制。由于计算中采用递推形式,所以适应速度横向和纵向变化,即使在速度相对变
Spatial-frequency domain SCHRODINGER equation migration, WANG Yong-juan, XU Yun Finite difference difference migration can be solved by Finite Difference Method based on space-time coordinate transformation and Fourier transform. The SCHRODINGER equation does not contain the second derivative term of the space coordinate z, thus satisfying the existence and uniqueness theorem of the solution. In this paper, the equations numerical solution algorithm and the difference format are discussed in detail. This method has no dip limit. Due to the recursive form used in the calculation, the adaptive lateral and longitudinal speed changes, even when the speed is relatively variable