Signal Processing in Doppler Radar Systems
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Questions and Answers

What are the two main outputs provided by Doppler navigation?

  • Drift angle and ground speed (correct)
  • Distance-To-Go and ETA
  • True air speed and wind speed
  • Altitude and heading

    • In Doppler navigation, what is the difference between heading and track?

  • Ground speed
  • Drift angle (correct)
  • Direction of the nose
  • Actual path of the aircraft

    • What is the formula for calculating ground speed in Doppler navigation?

  • Wind speed - True air speed
  • Heading - Track
  • Distance-To-Go + Heading to Steer
  • True air speed + wind speed (correct)

    • According to the principle of Doppler, what is the relationship between the change in frequency and the velocity of the observer?

    <p>Directly proportional</p> Signup and view all the answers

    What term is used to describe the change in frequency due to the relative motion between a source and an observer?

    <p>Red shift</p> Signup and view all the answers

    If a source is moving towards an observer, what shift in frequency occurs?

    <p>Blue shift</p> Signup and view all the answers

    What does 'extra' represent in Doppler with respect to frequency tracking?

    <p>The change in frequency due to relative motion</p> Signup and view all the answers

    In Doppler effect, what does Red shift indicate?

    <p>Decrease in frequency</p> Signup and view all the answers

    What is the relationship between transmitter's motion towards a source and the observed frequency according to Doppler?

    <p>Increase in frequency</p> Signup and view all the answers

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