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 February 10th, 2017, 12:23 AM #1 Member   Joined: Nov 2014 From: SG Posts: 55 Thanks: 1 Need hint for this discrete transfer function The question ask me to calculate and sketch the step response of the disrete transfer functions shown below for the first 6 sampling instants. What conclusion can you make about the effect of the pole zero locations? (1) 1/(1+0.7z^-1) My answer: Let X(z) = 1/(1+0.7z^-1) = z / (z+0.7) Inverse z-transform X(k) = (-0.7)^k and at k=0 to 5 X(k) = 1 , -0.7 , 0.49 , -0.343 , 0.2401 and -0.16807. i sketch the unit step response at k=0 , X(k) =1 and all the way to k=5 , X(k)=-0.16807. so now i need to answer the questions what conclusion can you make about the effect of the pole zero location? I think it is stable since it becomes smaller and smaller (as k goes to infinity , X(k) = 0) Did I do it correctly? Tags discrete, function, hint, transfer Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post MMath Pre-Calculus 18 June 10th, 2016 05:27 AM RGNIT Linear Algebra 0 March 22nd, 2014 11:44 PM r-soy Physics 2 October 14th, 2013 03:03 AM sibtain125 Calculus 7 January 16th, 2012 06:56 PM Hankyaku Algebra 0 June 16th, 2010 02:09 AM

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