90 citations · 591 across the 32 of their papers we have counts for
32 papers
Application of MUSIC algorithm in real-world microwave imaging of unknown anomalies from scattering matrix
Won-Kwang Park
In this contribution, we consider MUltiple SIgnal Classification (MUSIC)-type algorithm for a non-iterative microwave imaging of small and arbitrary shaped extended anomalies locat…
A novel study on the MUSIC-type imaging of small electromagnetic inhomogeneities in the limited-aperture inverse scattering problem
Won-Kwang Park
We apply MUltiple SIgnal Classification (MUSIC) algorithm for the location reconstruction of a set of {two-dimensional circle-like} small inhomogeneities in the limited-aperture in…
Application of MUSIC-type imaging for anomaly detection without background information
Won-Kwang Park
It has been demonstrated that the MUltiple SIgnal Classification (MUSIC) algorithm is fast, stable, and effective for localizing small anomalies in microwave imaging. For the succe…
Application and analysis of MUSIC algorithm for anomaly detection in microwave imaging without a switching device
Won-Kwang Park
Although the MUltiple SIgnal Classification (MUSIC) algorithm has demonstrated suitability as a microwave imaging technique for detecting anomalies, there is a fundamental limit th…
Real-time microwave imaging of unknown anomalies via scattering matrix
Won-Kwang Park
We consider an inverse scattering problem to identify the locations or shapes of unknown anomalies from scattering parameter data collected by a small number of dipole antennas. Mo…
Analysis and improvement of direct sampling method in the mono-static configuration
Sangwoo Kang, Marc Lambert, Won-Kwang Park
The recently introduced non-iterative imaging method entitled \enquote{direct sampling method} (DSM) is known to be fast, robust, and effective for inverse scattering problems in t…
Direct sampling method for retrieving small perfectly conducting cracks
Won-Kwang Park
In this paper, direct sampling method is considered for determining the location of a set of small, linear perfectly conducting cracks from the collected far-field data correspondi…
Direct sampling method for imaging small anomalies: real-data experiments
Won-Kwang Park, Kwang-Jae Lee, Seong-Ho Son
A direct sampling method (DSM) is designed herein for a real-time detection of small anomalies from scattering parameters measured by a small number of dipole antennas. Applicabili…
Direct sampling method for imaging small dielectric inhomogeneities: analysis and improvement
Sangwoo Kang, Marc Lambert, Won-Kwang Park
The direct sampling method (DSM) has been introduced for non-iterative imaging of small inhomogeneities and is known to be fast, robust, and effective for inverse scattering proble…
Detection of small inhomogeneities via direct sampling method in transverse electric polarization
Won-Kwang Park
Various studies have confirmed the possibility of identifying the location of a set of small inhomogeneities via a direct sampling method; however, when their permeability differs…
Direct sampling method for anomaly imaging from S-parameter
Won-Kwang Park
In this paper, we develop a fast imaging technique for small anomalies located in homogeneous media from S-parameter data measured at dipole antennas. Based on the representation o…
A novel study on subspace migration for imaging of a sound-hard arc
Won-Kwang Park
In this study, the influence of a test vector selection used in subspace migration to reconstruct the shape of a sound-hard arc in a two-dimensional inverse acoustic problem is con…
Topological derivative-based technique for imaging thin inhomogeneities with few incident directions
Won-Kwang Park
Many non-iterative imaging algorithms require a large number of incident directions. Topological derivative-based imaging techniques can alleviate this problem, but lacks a theoret…
Appearance of inaccurate results in the MUSIC algorithm with inappropriate wavenumber
Won-Kwang Park
MUltiple SIgnal Classification (MUSIC) is a well-known non-iterative location detection algorithm for small, perfectly conducting cracks in inverse scattering problems. However, wh…
Subspace migration for imaging of thin, curve-like electromagnetic inhomogeneities without shape information
Won-Kwang Park
It is well-known that subspace migration is stable and effective non-iterative imaging technique in inverse scattering problem. But, for a proper application, geometric features of…
Certain properties of MUSIC-type imaging functional in inverse scattering from an open, sound-hard arc
Won-Kwang Park
This paper concerns mathematical formulation of well-known MUltiple SIgnal Classification (MUSIC)-type imaging functional in the inverse scattering problem by an open sound-hard ar…
Detection of small electromagnetic inhomogeneities with inaccurate frequency
Won-Kwang Park
Generally, in the application of subspace migration for detecting locations of small inhomogeneities, one begins reconstruction procedure with a priori information of applied frequ…
Interpretation of MUSIC for location detecting of small inhomogeneities surrounded by random scatterers
Won-Kwang Park
In this paper, we consider the MUltiple SIgnal Classification (MUSIC) algorithm for identifying the locations of small electromagnetic inhomogeneities surrounded by random scattere…
Localization of small perfectly conducting cracks from far-field pattern with unknown frequency
Jung Ho Park, Won-Kwang Park
In inverse scattering problem, it is well-known that subspace migration yields very accurate locations of small perfectly conducting cracks when applied frequency is known. In cont…
Analysis of multi-frequency subspace migration weighted by natural logarithmic function for fast imaging of two-dimensional thin, arc-like electromagnetic inhomogeneities
Young-Deuk Joh, Won-Kwang Park
The present study seeks to investigate mathematical structures of a multi-frequency subspace migration weighted by the natural logarithmic function for imaging of thin electromagne…
Structure and properties of linear sampling method for perfectly conducting, arc-like cracks
Won-Kwang Park
We consider the imaging of arbitrary shaped, arc-like perfectly conducting cracks located in the two-dimensional homogeneous space via linear sampling method. Based on the structur…
One-step iterative reconstruction of conductivity inclusion via the concept of topological derivative
Won-Kwang Park
We consider an inverse problem of location identification of small conductivity inhomogeneity inside a conductor via boundary measurements which occurs in the EIT (Electrical Imped…
Multi-frequency subspace migration for imaging of perfectly conducting, arc-like cracks
Won-Kwang Park
Multi-frequency subspace migration imaging technique are usually adopted for the non-iterative imaging of unknown electromagnetic targets such as cracks in the concrete walls or br…
Analysis of subspace migration in the limited-view inverse scattering problems
Young Mi Kwon, Won-Kwang Park
In this paper, we analyze the subspace migration that occurs in limited-view inverse scattering problems. Based on the structure of singular vectors associated with the nonzero sin…