Practice Incorporating Target Fluctuation Models (Swerling I-IV) - 5.5.1 | Module 4: Radar Detection and Ambiguity | Radar System
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does RCS stand for in radar?

💡 Hint: Think about what we measure in radar systems.

Question 2

Easy

What Swerling model involves rapid fluctuations from pulse to pulse?

💡 Hint: Look for the model that describes rapid changes in RCS.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the Swerling I model characterized by?

  • Constant RCS
  • Slow fluctuations from scan to scan
  • Rapid fluctuations from pulse to pulse

💡 Hint: Think about how often the RCS changes in this model.

Question 2

Is Swerling IV associated with needing higher SNR for detection?

  • True
  • False

💡 Hint: Reflect on how quickly RCS changes can assist detection.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

If a radar system using Swerling I wishes to detect an aircraft at a maximum range of 100 km with a required detection probability of 0.9, calculate the implications on transmitted power needed versus a non-fluctuating target.

💡 Hint: Consider the relationship between SNR and power needed for detection based on fluctuation models.

Question 2

A radar system must adapt its parameters for detecting a target transitioning from Swerling IV to Swerling I. What changes should be made in terms of SNR and sensitivity?

💡 Hint: Evaluate how average RCS changes impact required sensitivity for different models.

Challenge and get performance evaluation