January 22nd, 2017, 07:56 AM  #1 
Member Joined: Nov 2014 From: SG Posts: 55 Thanks: 1  Sampled signal  Z transform Last edited by KaiL; January 22nd, 2017 at 08:13 AM. 
January 22nd, 2017, 05:00 PM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,404 Thanks: 1306 
what is $1(k)$ and $1(t)$ ?

January 22nd, 2017, 06:37 PM  #3 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,790 Thanks: 629 Math Focus: Yet to find out.  
January 22nd, 2017, 07:32 PM  #4 
Senior Member Joined: Sep 2015 From: USA Posts: 2,404 Thanks: 1306 
sampled at rate $f_s = \dfrac 1 T$ $f(n) = \alpha t 1(t)= \alpha n T,~n=0,1,\dots$ $F(z) = \displaystyle{\sum_{n=0}^\infty}~\alpha n T z^{n}$ $F(z) = \alpha T \displaystyle{\sum_{n=0}^\infty}~\ n z^{n}$ $F(z) = \alpha T \dfrac{z}{(z1)^2}$ 
January 23rd, 2017, 03:11 AM  #5 
Member Joined: Nov 2014 From: SG Posts: 55 Thanks: 1  Hi Thank you very much for your help but could I check with you what does the alpha α means in the equation ? I can't really find any information online with regard to the α alpha

January 23rd, 2017, 04:39 AM  #6 
Member Joined: Nov 2014 From: SG Posts: 55 Thanks: 1  
January 23rd, 2017, 05:20 AM  #7 
Senior Member Joined: Sep 2015 From: USA Posts: 2,404 Thanks: 1306  
January 23rd, 2017, 07:14 AM  #8 
Member Joined: Nov 2014 From: SG Posts: 55 Thanks: 1  

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sampled, signal, transform 
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