After applying this method to the forward modeling and migration of salt dame model, a better result than the conventional Born approximation migration method can be got. The ability of dealing with lateral velocity variation is greatly increased.

• 将改进的方法运用于盐丘模型的正演和偏移试验,并与常规Born近似偏移方法相比较,可明显看出变参考慢度Born近似傅氏偏移方法在效果上要优于后者,其处理速度横向变化的能力大大增强。