Sensing targets behind the opaque structures based on the combined method of ray tracing and diffraction

Xiaoyang Huang, Bingquan Chen, Hong Liang Cui, Ke Wang, Robert Pastore, Mark Farwell, Wilbur Chin, Jennifer Ross, Moses Mingle

Research output: Contribution to journalConference articlepeer-review

Abstract

The modeling of through-wall sensing using ultra-wideband (UWB) signals is considered. The combined method of ray tracing and diffraction (CMRTD) is employed to analyze the interaction between the UWB signal and the target. The result is obtained in frequency domain, and then transformed into time domain by use of inverse Fourier transform dFD. Scattering from a two-dimensional (2D) perfectly conducting circular cylinder is calculated and the result is shown in agreement with that obtained from the eigenfunction expansion method. Furthermore, the attenuating effects of walls are considered based on the geometrical optics. Numerical results of scattering from a 2D perfectly conducing circular cylinder behind a homogeneous, single-layered wall are given in both graphical and tabular formats.

Original languageEnglish
Article number60100N
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume6010
DOIs
StatePublished - 2005
EventInfrared to Terahertz Technologies for Health and the Environment - Boston, MA, United States
Duration: 24 Oct 200525 Oct 2005

Keywords

  • Diffraction
  • Perfectly conducting circular cylinder
  • Ray tracing
  • Scattering
  • Through-wall sensing
  • Ultra-wideband

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