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Designing a surveillance radar

Designing a surveillance radar

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Radar surveillance can be improved through the use of narrow beams, but this may lead to there being more beam positions to be searched than is possible in the time available. Multibeam systems can help with this problem, but they put more pressure on the data processing activities, which are often already stretched, even with today's technology. The RCS of real targets fluctuates and its statistical nature must be taken into consideration if the radar detection performance is not to be overestimated. The problem of clutter and the need for sub-clutter visibility is often severe and leads to a need for doppler processing. Careful design of the transmitted waveform is needed to avoid range and/or doppler ambiguities.

Chapter Contents:

  • 2.1 Radar and surveillance
  • 2.2 Antenna beamwidth considerations
  • 2.3 Pulse repetition frequency and unambiguous range and velocities
  • 2.4 Pulse length and sampling
  • 2.5 Radar cross-section
  • 2.6 Clutter
  • 2.7 Noise
  • 2.8 Final design
  • 2.9 Summary
  • 2.10 References
  • 2.11 Problems

Inspec keywords: search radar; Doppler radar

Other keywords: subclutter visibility; multibeam system; statistical nature; surveillance radar; radar detection performance; Doppler processing; narrow beam position; data processing activity

Subjects: Radar equipment, systems and applications; Radar theory

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