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Radar Fundamentals

Radar Fundamentals

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The purpose of this chapter is to provide a brief survey of radar fundamentals that can be used to put the RCS and RCS reduction (RCSR) problems in context. Obviously, only some of the most basic points concerning radar can be covered in a single chapter, and the reader who seeks more detail can find it in any one of a number of books on the general topic of radar. Here, after a brief history, radar system fundamentals are covered, with a focus on how radars discriminate in their measurement space of range, angle, and doppler. The radar range equation is developed, and its implication for RCSR is examined. Detection theory is then briefly discussed, and, finally, electronic countermeasure (ECM) techniques are outlined, with an emphasis on the effects of RCS control on ECM effectiveness.

Chapter Contents:

  • 2.1 Introduction
  • 2.2 History of Radar Development
  • 2.3 Radar Frequency Bands
  • 2.4 Radar System Fundamentals
  • 2.4.1 Basic Radar System Elements
  • 2.4.2 Continuous Wave Radars
  • 2.4.3 Pulsed Radar
  • 2.4.4 Range Discrimination
  • 2.4.5 Angle Discrimination
  • 2.4.6 Doppler Discrimination
  • 2.4.7 An Instrumentation Radar Example
  • 2.5 The Radar Range Equation
  • 2.5.1 Derivation of the Radar Range Equation
  • 2.5.2 The Decibel Scale
  • 2.6 Radar Detection
  • 2.6.1 The Decision Process
  • 2.6.2 Noise Statistics
  • 2.6.3 Single-Pulse Probability of Detection for a Nonfluctuating Target
  • 2.6.4 Pulse Integration
  • 2.6.5 Detection of Fluctuating Targets
  • 2.7 Radar System Performance Examples
  • 2.7.1 L Band Surveillance Radar
  • 2.7.2 Airborne Interceptor Radar
  • 2.7.3 Active Missile Seeker Radar
  • 2.7.4 Performance Summary
  • 2.8 Electronic Countermeasures
  • 2.9 Summary
  • References

Inspec keywords: Doppler radar; radar cross-sections; electronic countermeasures; radar detection

Other keywords: radar range equation; RCS reduction; radar measurement; MEMS packaging; RCSR; Doppler radar fundamental; electronic countermeasure technique; ECM technique

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

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