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Reflection-Based Source Inversion for Sparse Imaging of Low-Loss Composite Panels

Helander, Jakob LU ; Lundgren, Johan LU ; Sjoberg, Daniel LU orcid ; Larsson, Christer LU ; Martin, Torleif LU and Gustafsson, Mats LU orcid (2020) In IEEE Transactions on Antennas and Propagation 68(6). p.4860-4870
Abstract

This article presents a bistatic reflection-based imaging technique for electromagnetic testing of conductor-backed composite panels, which is based on an inverse formulation of the numerical problem at hand, and technically extends a previously demonstrated transmission-based system. The technique exploits the a priori assumption of pixel-based sparsity and retrieves the final image using data from only a single measurement, thereby removing the necessity of a reference measurement to be conducted. To demonstrate the capability of the technique, retrieved images are presented for a synthetic proof-of-concept device under test and an industrially manufactured composite panel. The presented technique can be considered as the initial... (More)

This article presents a bistatic reflection-based imaging technique for electromagnetic testing of conductor-backed composite panels, which is based on an inverse formulation of the numerical problem at hand, and technically extends a previously demonstrated transmission-based system. The technique exploits the a priori assumption of pixel-based sparsity and retrieves the final image using data from only a single measurement, thereby removing the necessity of a reference measurement to be conducted. To demonstrate the capability of the technique, retrieved images are presented for a synthetic proof-of-concept device under test and an industrially manufactured composite panel. The presented technique can be considered as the initial model in the development of more complex bistatic imaging systems and has been developed for the purpose of extending the opportunities to conduct reflection-based electromagnetic nondestructive testing on aircraft structural components.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Inverse scattering, L-minimization, millimeter wave (mm-wave) imaging, nondestructive testing (NDT), planar scanning, reflection
in
IEEE Transactions on Antennas and Propagation
volume
68
issue
6
article number
9014499
pages
11 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85086081078
ISSN
0018-926X
DOI
10.1109/TAP.2020.2975283
language
English
LU publication?
yes
id
1ac3543a-c311-4ced-91c5-87f4e7292534
date added to LUP
2021-01-13 09:32:20
date last changed
2022-04-19 03:38:31
@article{1ac3543a-c311-4ced-91c5-87f4e7292534,
  abstract     = {{<p>This article presents a bistatic reflection-based imaging technique for electromagnetic testing of conductor-backed composite panels, which is based on an inverse formulation of the numerical problem at hand, and technically extends a previously demonstrated transmission-based system. The technique exploits the a priori assumption of pixel-based sparsity and retrieves the final image using data from only a single measurement, thereby removing the necessity of a reference measurement to be conducted. To demonstrate the capability of the technique, retrieved images are presented for a synthetic proof-of-concept device under test and an industrially manufactured composite panel. The presented technique can be considered as the initial model in the development of more complex bistatic imaging systems and has been developed for the purpose of extending the opportunities to conduct reflection-based electromagnetic nondestructive testing on aircraft structural components.</p>}},
  author       = {{Helander, Jakob and Lundgren, Johan and Sjoberg, Daniel and Larsson, Christer and Martin, Torleif and Gustafsson, Mats}},
  issn         = {{0018-926X}},
  keywords     = {{Inverse scattering; L-minimization; millimeter wave (mm-wave) imaging; nondestructive testing (NDT); planar scanning; reflection}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{4860--4870}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Transactions on Antennas and Propagation}},
  title        = {{Reflection-Based Source Inversion for Sparse Imaging of Low-Loss Composite Panels}},
  url          = {{http://dx.doi.org/10.1109/TAP.2020.2975283}},
  doi          = {{10.1109/TAP.2020.2975283}},
  volume       = {{68}},
  year         = {{2020}},
}