Non-iterative MUSIC-Type Imaging Algorithmfor Reconstructing Penetrable Thin DielectricInclusions

摘要

We consider a non-iterative MUSIC-type imaging algorithm for reconstructing thin,curve-like penetrable inclusions in a two-dimensional homogeneous space. It is based on anappropriate asymptotic formula of the scattering amplitude. Operating at fixed nonzero fre-quency, it yields the shape of the inclusion from scattered fields in addition to estimates of thelength of the supporting curve. Numerical implementation shows that it is a fast and efficientalgorithm.