Microwave imaging with a time-reversed finite-difference time-domain technique

BARDAK C., Saed M.

Journal of Electromagnetic Waves and Applications, vol.28, no.12, pp.1455-1467, 2014 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 12
  • Publication Date: 2014
  • Doi Number: 10.1080/09205071.2014.929048
  • Journal Name: Journal of Electromagnetic Waves and Applications
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1455-1467
  • Keywords: microwave imaging, image reconstruction, FDTD time-reversal, behind-the-wall imaging
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

A novel approach to microwave imaging in three dimensions based on time-reversed finite-difference time-domain method (FDTD-TR) is presented. The proposed computationally efficient technique allows the reconstruction of detailed images of scattering objects. Transmissions as well as reflection imaging modalities in the near-field and far-field were investigated. In this study, we implemented the FDTD-TR algorithm in three dimensions using time-reversed convolutional perfectly matching layers as boundaries to truncate the simulation domain. The method works for dielectric as well as conducting objects. The methods capabilities in imaging multiple objects and behind-the-wall imaging are also presented. © 2014 © 2014 Taylor & Francis.