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DTFT questionby l46kok
Tags: dtft 
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#1
Nov707, 12:52 AM

P: 296

1. The problem statement, all variables and given/known data
Compute the DTFT of the following signal. [tex]x[n] = (0.8)^n u[n][/tex] 2. Relevant equations Properties of DTFT 3. The attempt at a solution Well, my professor tells me to use the properties of DTFT to solve this. I'd love to  except I don't know what the DTFT of [tex](0.8)^n[/tex] is. I've tried looking it up on the DTFT table, but couldn't find any, can someone tell me what it is? 


#2
Nov707, 11:16 AM

HW Helper
P: 4,125

It's in the DTFT pairs here:
http://www.neng.usu.edu/classes/ece/...transforms.pdf on page 20. but maybe the prof wants you to derive it from the properties you already have in your text? 


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