ISAR Imaging of Maritime Targets: Theory and Simulation.

Abstract

The theoretical analysis of synthetic aperture techniques presented in Memoran duni 4532 is applied to the inverse synthetic aperture radar (ISAR) imaging of ship targets. The point spread function of an ISAR system is derived and discussed iii detail. The explicit representation of phase information within our formalism makes possible the first thorough analysis of interference effects in synthetic aperture im ages of closely spaced scatterers. Effects of errors in motion compensation are also discussed in considerably greater depth than in earlier work. Computer simulation has provided us with a useful tool with which to verify our analytical results; we describe our simulation method and present a comprehensive selection of simulated images illustrating and confirming our theoretical analysis. Finally some practical implications of our results for the autofocusing of ISAR images are discussed. (KAR) P. 2

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1992
Accession Number
ADA297443

Entities

People

  • K. D. Ward
  • N. J. Porter
  • R. J. Tough

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Agreements
  • Amplitude
  • Classification
  • Compensation
  • Computer Simulations
  • Computers
  • Coordinate Systems
  • Errors
  • Far Field
  • Frequency
  • Frequency Modulation
  • Geometry
  • Intensity
  • Line Of Sight
  • Modulation
  • Simulations
  • Synthetic Aperture Radar

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Radar Systems Engineering.

Technology Areas

  • Space
  • Space - Space Objects