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Given an analog signal. x(t) =4 cos(7000rt), for t>0, sampled at a rate of 6,000 Hz, a. Sketch the spectrum of the original signal; b. Sketch the spectrum of the sampled signal up to 20 kHz; c. sketch the recovered analog signal spectrum if an ideal lowpass filter with a cutoff frequency of 4 kHz is used to filter the sampled signal in order to recover the original signal. d. Name the type of sampling used.

Given an analog signal. x(t) =4 cos(7000rt), for t>0, sampled at a rate of 6,000 Hz, a. Sketch the spectrum of the original signal; b. Sketch the spectrum of the sampled signal up to 20 kHz; c. sketch the recovered analog signal spectrum if an ideal lowpass filter with a cutoff frequency of 4 kHz is used to filter the sampled signal in order to recover the original signal. d. Name the type of sampling used.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Given an analog signal. x(t) =4 cos(7000rtt), for t>0, sampled at a rate of 6,000 Hz, a. Sketch the spectrum of the original signal; b. Sketch the spectrum of the sampled signal up to 20 kHz; c. sketch the recovered analog signal spectrum if an ideal lowpass filter with a cutoff frequency of 4 kHz is used to filter the sampled signal in order to recover the original signal. d. Name the type of sampling used.
Transcribed Image Text:Given an analog signal. x(t) =4 cos(7000rtt), for t>0, sampled at a rate of 6,000 Hz, a. Sketch the spectrum of the original signal; b. Sketch the spectrum of the sampled signal up to 20 kHz; c. sketch the recovered analog signal spectrum if an ideal lowpass filter with a cutoff frequency of 4 kHz is used to filter the sampled signal in order to recover the original signal. d. Name the type of sampling used.
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