Linearized inverse scattering based on seismic reverse time migration
نویسندگان
چکیده
In this paper we study the linearized inverse problem associated with imaging of reflection seismic data. We introduce an inverse scattering transform derived from reverse time migration (RTM). In the process, the explicit evaluation of the so-called normal operator is avoided, while other differential and pseudodifferential operator factors are introduced. We prove that, under certain conditions, the transform yields a partial inverse, and support this with numerical simulations. In addition, we explain the recently discussed ‘low-frequency artifacts’ in RTM, which are naturally removed by the new method. © 2012 Elsevier Masson SAS. All rights reserved.
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Wave propagation in complex media, scattering theory, and application to seismic imaging
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