Through-the-Wall Imaging from Electromagnetic Scattered Field Measurements

Abstract

We investigate an inverse imaging problem for TWI (Through-the-wall Imaging) using frequencies between 500 GHz and 1 THz. Starting from first principles, this thesis uses Maxwells equations to develop a model for the transmission Greens function. This simplified model is then used in a Lippman-Schwinger integral equation to predict the scattered field associated with interrogating THz waves. We investigate the effects of wave propagation through isotropic media, and present methods for creating images from the scattered field. These methods are examined using simulated data.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2007
Accession Number
ADA467076

Entities

People

  • Jerry Kim

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Atmospheric Attenuation
  • Dielectric Permittivity
  • Diffraction
  • Electromagnetic Fields
  • Electromagnetic Scattering
  • Formulas (Mathematics)
  • Image Reconstruction
  • Integral Equations
  • Inverse Problems
  • Refraction
  • Refractive Index
  • Scattering
  • Terahertz Radiation
  • Two Dimensional
  • Wave Equations
  • Wave Propagation
  • X-Ray Computed Tomography

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering