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Low PRF Operation

Low PRF Operation

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At low PRF, mainlobe clutter may largely be eliminated by offsetting the Doppler spectrum so the central line is at dc and passing the return through a clutter canceller and bank of Doppler filters. To keep the clutter in the canceller's rejection notches, the 'offset' must be varied with radar speed and antenna look angle.

Chapter Contents:

  • Differentiating Between Targets and Clutter
  • Signal Processing
  • Less Sophisticated Signal Processing
  • Advantages and Limitations
  • Getting Around Limitations

Inspec keywords: radar clutter; radar antennas; echo suppression; Doppler radar

Other keywords: low PRF operation; clutter canceller; Doppler filters; antenna look angle; canceller rejection notch; mainlobe clutter; Doppler spectrum; radar speed

Subjects: Electromagnetic compatibility and interference; Radar equipment, systems and applications; Single antennas

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