Examlpe: Assume that an analog signal is given by a) x(t) = 5 cos(4 × 10 t) + 3 cos(6 x 10 tt),t 2 0 b) x(t) = 5 cos(4 x 103nt) + 1 cos(10 x 103tt), t 20 and is sampled at the rate of 8kHz. Sketch the spectrum for the sampled signal from 0 to 20kHz. Sketch the recovered analoge signal spectrum if an ideal LPF with a cutoff frequency of 4KHZ used to filter the sampled signal (y(n) = x(n) )to recover the original signal. 1 x,(f) == } >. X(f -nfs) Ts
Examlpe: Assume that an analog signal is given by a) x(t) = 5 cos(4 × 10 t) + 3 cos(6 x 10 tt),t 2 0 b) x(t) = 5 cos(4 x 103nt) + 1 cos(10 x 103tt), t 20 and is sampled at the rate of 8kHz. Sketch the spectrum for the sampled signal from 0 to 20kHz. Sketch the recovered analoge signal spectrum if an ideal LPF with a cutoff frequency of 4KHZ used to filter the sampled signal (y(n) = x(n) )to recover the original signal. 1 x,(f) == } >. X(f -nfs) Ts
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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![Examlpe:
Assume that an analog signal is given by
a) x(t) = 5 cos(4 × 10³nt) + 3 cos(6 x 10 nt),t 2 0
b) x(t) = 5 cos(4 × 10³nt) + 1 cos(10 x 10 rt),t N0
and is sampled at the rate of 8KHZ. Sketch the spectrum for the sampled signal from 0 to
20kHz. Sketch the recovered analoge signal spectrum if an ideal LPF with a cutoff frequency
of 4KHZ used to filter the sampled signal (y(n) = x(n) )to recover the original signal.
%3D
%3D
1
>
Ts
Xs(f)
X(f – nfs)
f
n=ー00](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F77999ab1-4cad-4428-a98d-64e6574e5f4d%2F85ff56c5-de54-4abb-8804-4a22d92d1bba%2Fosfovth_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Examlpe:
Assume that an analog signal is given by
a) x(t) = 5 cos(4 × 10³nt) + 3 cos(6 x 10 nt),t 2 0
b) x(t) = 5 cos(4 × 10³nt) + 1 cos(10 x 10 rt),t N0
and is sampled at the rate of 8KHZ. Sketch the spectrum for the sampled signal from 0 to
20kHz. Sketch the recovered analoge signal spectrum if an ideal LPF with a cutoff frequency
of 4KHZ used to filter the sampled signal (y(n) = x(n) )to recover the original signal.
%3D
%3D
1
>
Ts
Xs(f)
X(f – nfs)
f
n=ー00
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