Synthetic Aperture Radar System Processing with a Nonuniform Pulse Repetition Interval.

Abstract

Based on recent developments it has become feasible to combine the multiple pulse integration of Synthetic Aperture Radar (SAR) with the temporal agility of nonuniform Pulse Repetition Intervals (PRIs). This combination can bring to the traditional SAR system both strong resistance to countermeasures and interception, and high sensitivity. A significant problem which must be addressed in SAR systems is the possible smearing of the azimuth dimension of the image due to Doppler sidelobes which are too high. This issue is even more serious with a nonuniform PRI waveform. One method for increasing the sidelobe rejection capability of these waveforms is through the use of interpolation techniques. The improved performance obtained by this method is illustrated through the use of the two examples.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1997
Accession Number
ADA323291

Entities

People

  • Stacie Mobley

Organizations

  • United States Army Aviation and Missile Command

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Antenna Radiation Patterns
  • Antennas
  • Bandwidth
  • Classification
  • Countermeasures
  • Doppler Effect
  • Doppler Radar
  • Energy Bands
  • Frequency Response
  • Processing Equipment
  • Radar
  • Side Looking Radar
  • Signal Processing
  • Synthetic Aperture Radar
  • Waveforms
  • Waves

Readers

  • Computational Fluid Dynamics (CFD)
  • Radar Systems Engineering.