Strong multiples generated by a coral reef can be identified from a 2D, 4-s common offset section recorded in the offshore South China Sea. In order to reject these multiples with reasonable computation effort, beamforming multiple attenuation was applied by using overlap reject bands. The offshore results show that this method can attenuate some very strong multiples and enhance weak primaries.

Multiple attenuation, a long-standing challenge in seismic processing, is particularly difficult in areas of complex geology. The Radon transform is useful in eliminating multiples in prestack data but it does not preserve amplitude at near offsets due to artifacts...

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