@presentation {miao2013SINBADfid, title = {Fast imaging via depth stepping with the two-way wave equation}, year = {2013}, publisher = {SINBAD}, abstract = {In this presentation we propose a fast imaging algorithm via depth stepping with the two-way wave equation. Within the framework of survey sinking, a stabilized depth extrapolation operator is computed using a spectral projector which can efficiently split evanescent wave components. The computation of the spectral projector features with an Hierarchically Semi-Seperable (HSS) matrix representation speeded up polynomial recursion, resulting in an accleration from cubic numerical complexity to linear numerical complexity.}, keywords = {Presentation, SINBAD, SINBADFALL2013, SLIM}, url = {https://slim.gatech.edu/Publications/Public/Conferences/SINBAD/2013/Fall/miao2013SINBADfid/miao2013SINBADfid.pdf}, author = {Lina Miao and Felix J. Herrmann} }