Comparison of angle decomposition methods for wave-equation migration
نویسنده
چکیده
Angle domain common image gathers offer advantages for subsurface image analysis in complex media. We compare two angle decomposition methods using extended images and wave propagation directions based on Poynting vectors of the source and receiver wavefields. We evaluate the ability of each method to produce accurate and efficient angle gathers for wave-equation migration in the presence of multi-arrivals and in the subsalt environment. Both methods are characterized by features that make them attractive in different situations.
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