Ultra Wide Bandwidth Synthetic Aperture Radar Focusing of Dispersive Targets

Abstract

This report addresses focusing of synthetic aperture radar (SAR) data, More specifically, it addresses the SAR focusing problem with special attention to focusing an area in the near-field of the synthetic aperture over a decade or more of bandwidth in a manner that preserves target resonance characteristics, A method for solving this image formation problem is described, along with a computationally efficient algorithm that is applicable to real-time processing with motion compensation, Both simplified program examples are given, as well as a complete program listing that executes on a several single-chip array processors simultaneously, An error analysis shows quantitatively when the depth of focus is adequate to preserve long-duration target resonance ringing effects for a given target Q, geometry, and bandwidth.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1992
Accession Number
ADA531148

Entities

People

  • John Mccorkle
  • Lam M. Nguyen

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Bandwidth
  • Computational Science
  • Computer Programs
  • Computers
  • Detection
  • Detectors
  • Doppler Effect
  • Error Analysis
  • Errors
  • Frequency
  • Geometry
  • Images
  • Near Field
  • Radar
  • Synthetic Aperture Radar
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computer Vision.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Electronics Engineering