Reconstruction of Planar Multilayered Structures using Multiplicative-Regularized Contrast Source Inversion
Abstract: There is an
increasing interest to have an access to hidden objects without making any
destructive action. Such non-destructive method is able to give a picture of
the inner part of the structure by measuring some external entities. The
problem of reconstructing planar multilayered structures based on given
scattering data is an inverse problem. Inverse problems are ill-posed, beside matrix
inversion tools, a regularization procedure must be applied additionally.
Multiplicative regularization was considered as an appropriate penalty method
to solve this problem. The Gauss-Newton inversion method as an optimization
procedure was used to find the permittivity values, which minimized some cost
functions. Several dielectric layers with different thickness and profiles were
observed. Some layers needed more discretization elements and more iteration
steps to give the correct profiles.
Keywords: contrast source,
electromagnetic waves, Green’s function, inverse problems, multiple regularization
Author: Mudrik Alaydrus, Said
Attamimi
Journal Code: jptkomputergg130084
