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@ARTICLE{Hughes:1042382,
author = {Hughes, Victor and Harris, Isaac and Kleefeld, Andreas},
title = {{T}wo direct sampling methods for an anisotropic scatterer
with a conductive boundary},
journal = {Applicable analysis},
volume = {N/A},
issn = {1026-7360},
publisher = {Taylor $\&$ Francis},
reportid = {FZJ-2025-02553},
pages = {1 - 31},
year = {2025},
note = {Online first since 13.5.2025},
abstract = {In this paper, we consider the inverse scattering problem
associated with an anisotropic medium with a conductive
boundary condition. We will assume that the corresponding
far–field pattern or Cauchy data is either known or
measured. The conductive boundary condition models a thin
coating around the boundary of the scatterer. We will
develop two direct sampling methods to solve the inverse
shape problem by numerically recovering the scatterer. To
this end, we study direct sampling methods by deriving that
the corresponding imaging functionals decay as the sampling
point moves away from the scatterer. These methods have been
applied to other inverse shape problems, but this is the
first time they will be applied to an anisotropic scatterer
with a conductive boundary condition. These methods allow
one to recover the scatterer by considering an
inner–product of the far–field data or the Cauchy data.
Here, we will assume that the Cauchy data is known on the
boundary of a region Ω that completely encloses the
scatterer D. We present numerical reconstructions in two
dimensions to validate our theoretical results for both
circular and non-circular scatterers.},
cin = {JSC},
ddc = {510},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {5112 - Cross-Domain Algorithms, Tools, Methods Labs (ATMLs)
and Research Groups (POF4-511)},
pid = {G:(DE-HGF)POF4-5112},
typ = {PUB:(DE-HGF)16},
doi = {10.1080/00036811.2025.2504034},
url = {https://juser.fz-juelich.de/record/1042382},
}