A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
Signals and Systems: Graph Transformations: Suppose a signal x(t) looks like this: https://dl.dropbox.com/u/17638088/Capture.PNG. What does [x(t)+x(t)]u(t) look like, where u(t) is the unit step function?
 2 years ago
Signals and Systems: Graph Transformations: Suppose a signal x(t) looks like this: https://dl.dropbox.com/u/17638088/Capture.PNG. What does [x(t)+x(t)]u(t) look like, where u(t) is the unit step function?

This Question is Closed

kaushi
 2 years ago
Best ResponseYou've already chosen the best response.0Unit step function is defined by u(t) = { 0, t<0 and 1, t>=0 } x(t) = { t+2, 1<t<=2 { 2, 0<t<= 1 { 1, 1<t<=0 { t+1, 2<t<=1 Now, let's find g(t)= [x(t)+x(t)]u(t) for each step of x(t) when 1<t<=2 : g(t)= [(t+2)+(t+1)].1=3 when 0<t<=1 : g(t)= [2 + 1].1 = 3 when 1<t<=0 : g(t) = [1+2].0 =0 when 2<t<=1 : g(t) = [(t+1)+(t+2)].0 = 0 which gives g(t) = {0,t<0 and 3, t>=0}

windsylph
 2 years ago
Best ResponseYou've already chosen the best response.0wait, but isn't x(t) = t+1 at 1<t<=2?
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.