Imaging schemes for perfectly conducting cracks

H Ammari, J Garnier, H Kang, WK Park, K SØlna - SIAM Journal on Applied …, 2011 - SIAM
We consider the problem of locating perfectly conducting cracks and estimating their
geometric features from multistatic response matrix measurements at a single or multiple …

A shape-topological control problem for nonlinear crack-defect interaction: The antiplane variational model

VA Kovtunenko, G Leugering - SIAM Journal on Control and Optimization, 2016 - SIAM
We consider the shape-topological control of a singularly perturbed variational inequality.
The geometry-dependent state problem that we address in this paper concerns a …

Multi-frequency subspace migration for imaging of perfectly conducting, arc-like cracks in full-and limited-view inverse scattering problems

WK Park - Journal of Computational Physics, 2015 - Elsevier
Multi-frequency subspace migration imaging techniques are usually adopted for the non-
iterative imaging of unknown electromagnetic targets, such as cracks in concrete walls or …

Application of MUSIC algorithm in real-world microwave imaging of unknown anomalies from scattering matrix

WK Park - Mechanical Systems and Signal Processing, 2021 - Elsevier
In this contribution, we consider MUltiple SIgnal Classification (MUSIC)-type algorithm for a
non-iterative microwave imaging of small and arbitrary shaped extended anomalies located …

Level set methods for inverse scattering—some recent developments

O Dorn, D Lesselier - Inverse Problems, 2009 - iopscience.iop.org
We give an update on recent techniques which use a level set representation of shapes for
solving inverse scattering problems, completing in that matter the exposition made in (Dorn …

Electromagnetic MUSIC-type imaging of perfectly conducting, arc-like cracks at single frequency

WK Park, D Lesselier - Journal of Computational Physics, 2009 - Elsevier
We propose a non-iterative MUSIC (MUltiple SIgnal Classification)-type algorithm for the
time-harmonic electromagnetic imaging of one or more perfectly conducting, arc-like cracks …

Application of MUSIC algorithm for a fast identification of small perfectly conducting cracks in limited-aperture inverse scattering problem

S Kang, WK Park - Computers & Mathematics with Applications, 2022 - Elsevier
In this study, we investigate MUltiple SIgnal Classification (MUSIC) operated at a fixed
frequency for identifying the locations of short, linear perfectly conducting cracks in limited …

[HTML][HTML] Fast identification of short, sound-soft open arcs by the orthogonality sampling method in the limited-aperture inverse scattering problem

CY Ahn, S Chae, WK Park - Applied Mathematics Letters, 2020 - Elsevier
The orthogonality sampling method (OSM) is a recently developed non-iterative technique
for imaging and identifying targets in inverse scattering problems. In this paper, a set of short …

MUSIC algorithm for location searching of dielectric anomalies from S-parameters using microwave imaging

WK Park, HP Kim, KJ Lee, SH Son - Journal of Computational Physics, 2017 - Elsevier
Motivated by the biomedical engineering used in early-stage breast cancer detection, we
investigated the use of MUltiple SIgnal Classification (MUSIC) algorithm for location …

Asymptotic properties of MUSIC-type imaging in two-dimensional inverse scattering from thin electromagnetic inclusions

WK Park - SIAM Journal on Applied Mathematics, 2015 - SIAM
The main purpose of this paper is to study the structure of the well-known noniterative
MUltiple SIgnal Classification (MUSIC) algorithm for identifying the shape of extended …