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Gaussian and non-Gaussian clutter models

Gaussian and non-Gaussian clutter models

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Sea Clutter: Scattering, the K Distribution and Radar Performance — Recommend this title to your library

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In this chapter we develop the models of sea clutter that will provide a basis for our discussion and calculation of radar performance. As we will see in Part IV (Chapters 15-17), a direct approach to the modelling of sea clutter provides many useful insights. Nonetheless, the interactions between the ocean, atmosphere and microwave radiation are far too complicated to be described usefully in strictly deterministic terms. Consequently, the models we develop in this chapter are unashamedly statistical in character.

Chapter Contents:

  • 6.1 Introduction
  • 6.2 Gaussian clutter models
  • 6.3 Non-Gaussian clutter
  • 6.3.1 Compound models of non-Gaussian clutter
  • 6.3.2 The gamma distribution of local power and the K distribution
  • 6.3.3 A coherent signal in K distributed clutter
  • 6.3.4 K distributed clutter with added thermal noise
  • 6.3.5 Phases of homodyned and generalised K processes
  • 6.4 Modelling coherent clutter
  • References

Inspec keywords: radar clutter; radar signal processing; marine radar; Gaussian processes

Other keywords: nonGaussian clutter model; microwave radiation; atmosphere; radar performance; ocean; sea clutter modelling

Subjects: Signal processing and detection; Radar equipment, systems and applications; Other topics in statistics

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