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In this paper we study the linearized inverse problem associated with imagingof reflection seismic data. We introduce an inverse scattering transformderived from reverse-time migration (RTM). In the process, the explicitevaluation of the so-called normal operator is avoided, while otherdifferential and pseudodifferential operator factors are introduced. We provethat, under certain conditions, the transform yields a partial inverse, andsupport this with numerical simulations. In addition, we explain the recentlydiscussed 'low-frequency artifacts' in RTM, which are naturally removed by thenew method.

Linearized inverse scattering based on seismic Reverse Time Migration