Sketch the periodic signal k(t) = Em(t + kT) where the period T = 3 s for a given signal m(t) in Figure Q3(a). Proof that by using the exponential Fourier Series, the signal expansion of k(t) is given by the following expression: (Hint: Simplify the coefficient x, in term of sinc function) (a) (i) k(t) = e-20) sinc 3 n=-0 Based on the answer in Q3(a)(i), predict the amplitude spectrum of the non- periodic signal m(t) in Figure Q3(a) with T = 200 s. (ii) (b) Based on your understanding, give a suggestion to calculate the frequency domain of signal x(t) = eatu(t) and state your justification.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Question
(i)
Sketch the periodic signal k(t) = £,m(t + kT) where the period T = 3 s
for a given signal m(t) in Figure Q3(a). Proof that by using the exponential
Fourier Series, the signal expansion of k(t) is given by the following
expression: (Hint: Simplify the coefficient x, in term of sinc function)
Q3
(а)
%3D
k(t) ==2
1
_İan
(1-2t) sinc
3
n=-0
(ii)
Based on the answer in Q3(a)(i), predict the amplitude spectrum of the non-
periodic signal m(t) in Figure Q3(a) with T = 200 s.
(b)
Based on your understanding, give a suggestion to calculate the frequency domain of
signal x(t) = eat u(t) and state your justification.
m(t)
1
T
Figure Q3(a)
Transcribed Image Text:(i) Sketch the periodic signal k(t) = £,m(t + kT) where the period T = 3 s for a given signal m(t) in Figure Q3(a). Proof that by using the exponential Fourier Series, the signal expansion of k(t) is given by the following expression: (Hint: Simplify the coefficient x, in term of sinc function) Q3 (а) %3D k(t) ==2 1 _İan (1-2t) sinc 3 n=-0 (ii) Based on the answer in Q3(a)(i), predict the amplitude spectrum of the non- periodic signal m(t) in Figure Q3(a) with T = 200 s. (b) Based on your understanding, give a suggestion to calculate the frequency domain of signal x(t) = eat u(t) and state your justification. m(t) 1 T Figure Q3(a)
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