EXERCISE 4. Compute the DTFT of the following signals, either directly or using its properties (below a is a fixed constant |a| < 1): (a) n = ()un-10 (b) xn = n()² un (c) xn = (1/a)"u_n (d) xn na" un
EXERCISE 4. Compute the DTFT of the following signals, either directly or using its properties (below a is a fixed constant |a| < 1): (a) n = ()un-10 (b) xn = n()² un (c) xn = (1/a)"u_n (d) xn na" un
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:EXERCISE 4. Compute the DTFT of the following signals, either directly or using its
properties (below a is a fixed constant |a| < 1):
(a) n = (²)un-10
(b) xn = n()² un
(c) n = (1/a)"u_n
(d) xn = na" un
part d only
1
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