Prestack multiple attenuation using the hyperbolic Radon transform A comparison of inversion schemes

I apply the iterative hyperbolic Radon transform to CMP gathers to create a velocity panel where multiples and primaries are separable. The velocity panel is created using three different inversion schemes: (1) l2 norm inversion, (2) l1 norm inversion and (3) l1 norm with l1 regularization inversion. The third technique is particularly efficient at separating primaries and multiples in the prestack domain. A comparison of the three techniques shows that some noticeable differences appear in the prestack domain after multiple attenuation and that no discrepancies emerge on the stacked sections. These conclusions are linked to convergence properties of each method, and also linked to the “quality” of the data.