3. Signals and Systems

Signal Basics — Quiz

Test your understanding of signal basics with 5 practice questions.

Practice Questions

Question 1

What term describes a signal defined only at integer multiples of a sampling period?

Question 2

If y(t)=x(2t), how is the time axis of y(t) related to x(t)?

Question 3

What is the fundamental period T of the signal x(t)=sin(5t)?

Question 4

Which type of signal has finite, non-zero average power but infinite total energy?

Question 5

Compute the energy of the signal x(t)=1 for 0≤t≤2 and x(t)=0 elsewhere.