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Least Squares Reverse Time Migration with Model Space Preconditioning and Exact Forward/Adjoint Pairs
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 78th EAGE Conference and Exhibition 2016, May 2016, Volume 2016, p.1 - 5
Abstract
Summary
We investigate the proper derivation of forward and adjoint pairs for least squares reverse time migration. We adopt a matrix-vector formulation to guide the development of our algorithm. We also investigate the development of conjugate gradients solutions with preconditioning techniques for the alleviation of low wavenumber artifacts that contaminate images that are computed via reverse time migration.
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