A class of singular Fourier integral operators in Synthetic Aperture Radar imaging

摘要

In this article, we analyze the microlocal properties of the linearized forward scattering operator F and the normal operator F ~*F (where F ~* is the L ~2 adjoint of F) which arises in Synthetic Aperture Radar imaging for the common midpoint acquisition geometry. When F ~* is applied to the scattered data, artifacts appear. We show that F ~*F can be decomposed as a sum of four operators, each belonging to a class of distributions associated to two cleanly intersecting Lagrangians, I ~(p,l)(Λ 0, Λ 1), thereby explaining the latter artifacts.