Doppler Effect and Navigation
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Questions and Answers

What is the direction of transmitter motion that causes an apparent increase in the transmitted frequency?

  • Away from the receiver and towards the transmitter
  • In a circular motion around the receiver
  • Towards the receiver and away from the transmitter (correct)
  • Perpendicular to the receiver

    • What is the principle behind the Doppler Navigation System?

  • Measuring the phase shift of transmitted radio signals
  • Comparing the frequency of transmitted and received radio signals (correct)
  • Measuring the time delay between transmitted and received radio signals
  • Determining the velocity of the transmitter using trigonometry

    • When does an apparent decrease in the transmitted frequency occur due to the Doppler effect?

  • When the transmitter and receiver are moving in the same direction
  • When the transmitter moves away from the receiver (correct)
  • When the transmitter moves in a circular motion around the receiver
  • When the transmitter and receiver are stationary

    • What is the result of the transmitter moving towards the receiver on the transmitted frequency?

    <p>An apparent increase in frequency</p> Signup and view all the answers

    What is the relationship between the transmitter velocity and the apparent change in frequency?

    <p>The apparent change in frequency is directly proportional to the transmitter velocity</p> Signup and view all the answers

    Study Notes

    Doppler Effect

    • An apparent increase in the transmitted frequency occurs when the transmitter moves towards the receiver or the receiver moves towards the transmitter.
    • An apparent decrease in the transmitted frequency occurs when the transmitter moves away from the receiver.

    Doppler Navigation System

    • The Doppler Navigation System is based on the Doppler effect.

    Doppler Effect Scenarios

    • When the transmitter moves away from the receiver, an apparent decrease in the transmitted frequency occurs, proportional to the transmitter's velocity.
    • When the transmitter moves towards the receiver, an apparent increase in the transmitted frequency occurs, proportional to the transmitter's velocity.
    • When both the transmitter and receiver move towards each other, an apparent increase in the transmitted frequency occurs, proportional to the transmitter's velocity.

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    Description

    This quiz covers the principles of Doppler effect and its application in navigation systems, including frequency shifts and velocity.

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