1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Discrete Time Fourier Transform

  1. Apr 8, 2013 #1
    Find the DTFT of:

    h[n]=(-1)[itex]^{n}[/itex][itex]\frac{sin(\frac{\pi}{2}n}{sin(\pi n}[/itex]

    useful properties:

    x[n]y[n] --> X[Ω]*Y[Ω]

    [itex]\frac{sin(\frac{\pi}{2}n}{sin(\pi n}[/itex] --> rect[[itex]\frac{2Ω}{\pi}[/itex]


    I have no clue how to deal with the (-1)[itex]^{n}[\itex] the DTFT of that doesn't converge. . .

    any help would be appreciated
     
  2. jcsd
  3. Apr 8, 2013 #2

    marcusl

    User Avatar
    Science Advisor
    Gold Member

    Why do you say that?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted