Multistatic radar

Multistatic radar

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Bistatic and multistatic radars differ in a number of ways from equivalent monostatic systems. Some of the differences are unwanted and merely add to the system cost and engineering complexity, but others can be exploited to produce significant operational advantages. Perhaps the biggest single advantage of multistatic operation is the reduced vulnerability of the receiver to jamming or physical attack by anti-radiation missiles. Another big advantage, in the case of mobile systems, is that clutter tuning may be employed to increase the sensitivity of the system to slowly moving targets. A higher PRF can be used with bistatic radar than with monostatic, which also aids sub-clutter visibility. The original reason for the application of bistatic techniques in the 1920s, which was to isolate the receiver from the transmitter when CW waveforms were used, remains valid today and most large HF over-the-horizon radars have transmitters and receivers separated by over 100 km (see Chapter 10). These radars also follow the typical bistatic format of a single transmitter beam and several narrow receiver beams. The cost of multibeam receiving antennas, and other system complexities, means that multistatic radar will never replace monostatic radar in general usage, but in certain applications it remains a powerful technique.

Chapter Contents:

  • 13.1 Introduction
  • 13.2 Multistatic concepts
  • 13.3 The bistatic radar equation
  • 13.4 Multistatic target location
  • 13.5 Bistatic doppler
  • 13.6 Applications
  • 13.7 Summary
  • 13.8 References
  • 13.9 Further reading
  • 13.10 Problems

Inspec keywords: jamming; radar transmitters; radar receivers; radar clutter

Other keywords: subclutter visibility; equivalent monostatic systems; multistatic radar; jamming; single transmitter beam; antiradiation missiles; PRF; bistatic techniques; HF over-the-horizon radars; receiver beams; multistatic operation; physical attack; mobile systems; bistatic radars; engineering complexity

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

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