A qualitative comparison of the first-order Born and Rytov approximations , by Marta Jo Woodward

Many papers have been written on the relative merits of the first-order Born and Rytov approximations. They concur on the superiority of the Born approximation for describing reflected energy and of the Rytov for describing transmitted energy. This paper illustrates these conclusions through analysis of the approximations as they are applied to the synthetic, cross-hole geometry experiment of SEP-57 (Woodward, 1988). Qualitative comparisons are made between both: the velocity inversions resulting from Born and Rytov implementations of wave-equation tomography, and the error terms in the corresponding wave equations.


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