Propagation Effects and Mechanisms

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Propagation Effects and Mechanisms

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Author(s): Jay A. Saffold 1
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Source: Principles of Modern Radar: Basic principles,
Publication date January 2010

This chapter discusses the effects of the transmission medium on the propagation of electromagnetic waves traveling from a radar transmitter to a target and back to the receiver. Many factors can influence the propagating radar signal, such as the composition of the atmosphere, clouds, rain, insects, and obstacles. The wave will also be affected by the ground the wave passes over as well as other topological features, such as hills, valleys, and lakes. This chapter considers only how these topological features affect the propagating wave, while the radar return from these features, known as clutter, are discussed in the next chapter.

Chapter Contents:

  • 4.1 Introduction
  • 4.2 Propagation Factor
  • 4.3 Propagation Paths and Regions
  • 4.4 Atmospheric Attenuation and Absorption
  • 4.5 Atmospheric Refraction
  • 4.6 Turbulence
  • 4.7 Exploiting the Ionosphere
  • 4.8 Diffraction
  • 4.9 Multipath
  • 4.10 Skin Depth and Penetration: Transmitting Through Walls
  • 4.11 Commercial Simulations
  • 4.12 Summary and Further Reading
  • 4.13 References
  • 4.14 Problems

Inspec keywords: electromagnetic wave propagation

Other keywords: topological features; rain; atmosphere; propagation mechanisms; clouds; propagation effects; valleys; hills; transmission medium; electromagnetic wave propagation; insects; lakes; obstacles; radar signal propagation; radar transmitter

Subjects: Electromagnetic waves: theory; Electromagnetic wave propagation

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