x(n)= -a^(-n)
Question 18 (1 point) a then the associated time If X(z)=z/(z-a) with ROC of z]< sequence...
True False Question 9 Consider the discrete-time signal a[k] with Z-transform, 2+3z-1 X(z) = and ROC /z/ > . Use long-division to find the signal value x [2]. You find that z[2] = O-1 None of the listed answers 0.5 2.
3. Obtain the BZT of the sequence x[n]-(e)"u[n] + (e-2)"d-n-1]. The ROC must be given as part of the answer. 4. Obtain the BZT of the sequence xl")-(e"ruf"Mer4-"-u. The ROC must be given as part of the answer. 3. Obtain the BZT of the sequence x[n]-(e)"u[n] + (e-2)"d-n-1]. The ROC must be given as part of the answer. 4. Obtain the BZT of the sequence xl")-(e"ruf"Mer4-"-u. The ROC must be given as part of the answer.
1. Find the z-transform (ZT) of the discrete-time (DT) sequence provide the region of convergence (ROC)
In-class Assignment 4 Z-transform OGY 8 2. Determine the z-transform and the associated region of convergence ROC 5) u(k) e2(k) = ( ) k u(k-1) 3. The error signal e(t) = Be-"u(t) is sampled at the rte of 20Hz. The z-transform of the resulting number sequence is E(c) , Determine B and a. -0.8 4. Determien the initial and value of the sequence e(k) if the E(z) is given be 2z E (z) = z2-1
3.10. Without explicitly solving for X (2), find the ROC of the z-transform of each of the following sequences, and determine whether the Fourier transform converges: (a) x[n] = [(y)"+(!)"]u[n – 10) J1, -10 <n<10, (b) xin] = 1 o. otherwise, (c) x[n] = 2"u[-n] (d) x[n] = |()*++ - (ja/331]u[n - 1] (e) x[n] = a[n+ 10] – u[n+ 50 (f) x[n]=()” [1] + (2+36)-24 – – 1).
7. Derive the time domsin representation of the Sollowing Lapince transiorm espressicnbasi on e sivee Roc ROC:0< Rels) < X(s) = s(s-1),
10. Find the ROC of the Z-transform of x[n] (a) [:l> (6) 31 (0)1> (a) not (a), not (b) and not () 11. Calculate the DFT of the following discrete-time signal with: x[0] = 2, x[1] = -1, x[2] = 3, x[3] = -2. The value of the DFT required for this question is X(0). (a) 2 + j3. (b) 2-4, (c) 6, (d) not (a), not (b) and not e
Find Z tranform and ROC; Sketch pole zero x[n]=(2/3)^n u[-n-1]+(-(1/3))^n u[n]
A sequence has the discrete-time Fourier transform 1 - a2 X(e) ae-jw)2(1- aejw) la| < 1 (a) Find the sequence r[n] (b) Calculate X(eju)cos(w)dw/27
x[n] = { Consider the discrete sequence S (0.5)" 0<n<N-1 otherwise a) Determine the z-transform X(2)! b) Determine and plot the poles and zeros of X(2) when N = 8!