Practice Time Scaling (4.3.4) - Fourier Transform Analysis of Continuous-Time Aperiodic Signals
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Time Scaling

Practice - Time Scaling

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Practice Questions

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Question 1 Easy

What is the formula for the Time Scaling property in Fourier Transforms?

💡 Hint: Remember the basic structure of Fourier Transforms.

Question 2 Easy

If a signal is compressed (|a| > 1), what happens to its frequency content?

💡 Hint: Think about what compression in time means for the frequency domain.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the relationship between time compression and frequency bandwidth?

Bandwidth increases as time duration decreases.
Bandwidth decreases as time duration decreases.
Bandwidth remains unchanged.

💡 Hint: Consider the implications of speeding up a signal.

Question 2

True or False: The amplitude of a signal increases when it is compressed in time.

True
False

💡 Hint: Think about energy conservation principles.

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Challenge Problems

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Challenge 1 Hard

Design a signal processing operation where you need to compress a time signal by 3. Analyze how the Fourier Transform changes.

💡 Hint: Apply F{x(at)} to your analysis.

Challenge 2 Hard

Discuss how time scaling might be relevant in real-world applications like voice modulation.

💡 Hint: Think about how faster speech impacts comprehension.

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