Through-the-Wall Radar Simulations for Complex Room Imaging

Abstract

This report demonstrates the application of synthetic aperture radar (SAR) techniques on imaging a complex room containing realistic features, such as doors, windows, interior walls, furniture objects, and humans. We analyze the changes in the radar phenomenology as we consider various aspect angles and polarizations. The scenarios investigated here correspond to either ground-based or airborne radar systems. Enhancements in the radar images can be obtained by combining images from different aspect angles. We demonstrate the advantages of using cross-polarization for detecting human targets. We also emphasize the importance of multipath propagation effects in interpreting radar images. All the numerical examples are based on radar data obtained through computer simulation of the electromagnetic (EM) scattering problems using either the finite-difference time-domain (FDTD) method or Xpatch. The accuracy of the EM modeling methods is evaluated by comparing the images based on FDTD and Xpatch simulations.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2010
Accession Number
ADA522101

Entities

People

  • Calvin D. Le
  • Traian V. Dogaru

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Aspect Angle
  • Central Processing Units
  • Computational Science
  • Computer-Aided Design
  • Computers
  • Cross Polarization
  • Detection
  • Geometry
  • Ground Based
  • Military Research
  • Radar
  • Scattering
  • Simulations
  • Synthetic Aperture Radar
  • Two Dimensional

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Radar Systems Engineering.