Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβperfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define the Discrete-Time Fourier Transform (DTFT).
π‘ Hint: Think about how we analyze signals over time.
Question 2
Easy
What is the fundamental period of the DTFT?
π‘ Hint: Consider how often properties repeat in the frequency domain.
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 DTFT transform?
- Continuous signals
- Discrete signals
- Random signals
π‘ Hint: Pay attention to the nature of the signals involved.
Question 2
Is the DTFT periodic?
- True
- False
π‘ Hint: Think about the repetition of frequency information.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a sequence x[n] = cos(Οβn)u[n], compute its DTFT and illustrate its spectrum.
π‘ Hint: Recall the DTFT definitions involving cosines.
Question 2
Design a digital filter using DTFT; explain its frequency response and how it modifies input signals.
π‘ Hint: Think about how you want different frequencies to be affected by the filter.
Challenge and get performance evaluation