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通过对CRS叠加的改进,将复杂地表的影响考虑在内。这样,复杂地表条件下的CRS叠加就可以直接应用于未作静校正的数据。在基准面重建时,利用CRS运动学波场参数可将CRS叠加剖面校正到一选定的水平面上。地震数据的试算表明,复杂地表CRS叠加得出的剖面与常规处理剖面相比有着较高的信噪比和同相轴连续性。考虑到射线存在多路径的情况,通过倾角分解的方法,将来自各个角度的有效反射信息分别进行处理并参与叠加,有效的改善了CRS叠加剖面的质量。
By improving the CRS overlay, the effects of complex surfaces are taken into account. In this way, the CRS overlay under complex surface conditions can be directly applied to the uncorrected data. CRS kinematic wavefield parameters can be used to correct the CRS overlay profile to a selected horizontal plane when reconstructing the datum. The trial calculation of the seismic data shows that the CRS superimposed on the complex surface has a higher signal-to-noise ratio and continuity than the conventional ones. Taking into account the existence of multi-path ray conditions, the effective reflection information from all angles are separately processed and superimposed by the method of dip decomposition, which effectively improves the quality of the CRS superimposed profile.