Practice - Doppler Effect and Velocity Measurement
Practice Questions
Test your understanding with targeted questions
What happens to the frequency when a target moves towards the radar?
💡 Hint: Think about how wavefronts behave when objects come closer.
Define radial velocity.
💡 Hint: Consider it as the component of total velocity in the line of sight.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the Doppler Effect?
💡 Hint: Think of how a siren changes pitch as it approaches.
True or False: A CW radar can accurately measure both radial velocity and distance to targets.
💡 Hint: Consider what you need to measure distance.
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Challenge Problems
Push your limits with advanced challenges
A radar system transmits a signal of frequency 3 GHz and observes a Doppler shift of 1200 Hz from an approaching target. Calculate the radial velocity.
💡 Hint: Use the relationship between speed, frequency, and wavelength carefully.
Discuss how using CW radar to detect an object moving at 30 m/s in a tangential direction would yield different data than it does with radial motion.
💡 Hint: Consider alternative methods for measuring movement.
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Reference links
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