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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define the term 'discrete-time signal'.
π‘ Hint: Think of how continuous signals change over time.
Question 2
Easy
What is the formula for sampling frequency (fs)?
π‘ Hint: Consider how many samples you take per second.
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 does the term 'discrete-time signal' refer to?
- A signal defined continuously over time.
- A signal defined only at specific intervals.
- Both A and B.
π‘ Hint: Think about how we measure time.
Question 2
True or False: The Nyquist rate is the minimum sampling rate to avoid aliasing.
- True
- False
π‘ Hint: Relate this to what happens when sampling is inadequate.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A continuous signal is sampled at 1.5 kHz. If this signal has frequency components up to 800 Hz, analyze whether aliasing may occur.
π‘ Hint: Use the Nyquist theorem to assess the sampling rate.
Question 2
Derive the discrete representation x[n] for a continuous signal x(t) = sin(2Ο300t) when sampled at 0.002 seconds.
π‘ Hint: Substitute the value of t with n times the sampling period.
Challenge and get performance evaluation