A Comparison of Splitting Techniques for 3D Complex Padé Fourier Finite Difference Migration

Figure 2

Migration impulse responses. (a)–(d): FFD migration using alternating four-way splitting; 𝑝=0.75. (e)–(h): FFDPI migration using conventional two-way splitting, with interpolation between 𝑝=0.9 and 𝑝=1.1. (i)–(l): FFDPI migration using alternating four-way splitting, with interpolation between 𝑝=0.9 and 𝑝=1.1. From left to right: central vertical cut in the 𝑥-𝑧 plane and horizontal cuts at 150 m, 750 m, and 1250 m depth.

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