A multi step numerical inversion algorithm is presented for solving the problem based on the superposition technique of scattered waves.
基于散射波的合成技术，提出了数值求解这类问题的一个分离式三步反演算法。
In Kirchhoff migration, this is done by using the Kirchhoff integral representation of a field at a given point as a (weighted) superposition of waves propagating from adjacent points and times.
克希霍夫偏移中，反传播的处理就是把特定点的波场克希霍夫积分表达式作为从邻近点在邻近时间传播来的波的(加权)叠加。
Based on the principle of superposition of plane waves, the same expressions are derived as those based on Maxwell 'e field equations.
从平面波叠加原理出发，导出与从麦克斯韦方程组出发同样的表达式。
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