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In DSB-SC, the modulation and demodulation processes are shown in block diagrams in Figure 1. Assume that m(t) = 10 cos 500t and c(t) = cos 5000t 60 m(t) Modulating signal Modulated signal PDBS-SC (1) 3 Carrier signal c(t) (a) DSB-SC modulator r(t) Received signal d (t) c'(t) (b) DSB-SC Demodulator Figure 1. DSB-SC modulator and demodulator. Low-pass filter o(t) Find the bandwidth of the modulating and modulated signals. What modifications do the above DSB-SC circuit need to go through so that the resultant modified circuit will operate as an AM circuit? Draw the equivalent AM circuit.

In DSB-SC, the modulation and demodulation processes are shown in block diagrams in Figure 1. Assume that m(t) = 10 cos 500t and c(t) = cos 5000t 60 m(t) Modulating signal Modulated signal PDBS-SC (1) 3 Carrier signal c(t) (a) DSB-SC modulator r(t) Received signal d (t) c'(t) (b) DSB-SC Demodulator Figure 1. DSB-SC modulator and demodulator. Low-pass filter o(t) Find the bandwidth of the modulating and modulated signals. What modifications do the above DSB-SC circuit need to go through so that the resultant modified circuit will operate as an AM circuit? Draw the equivalent AM circuit.

Introductory Circuit Analysis (13th Edition)
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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Please solve b) and c) correctly showing all the steps in detail

In DSB-SC, the modulation and demodulation processes are shown in block diagrams in Figure 1. Assume that m(t) = 10 cos 500t and c(t) = cos 5000t 60 m(t) Modulating signal Modulated signal PDBS-SC (t) 3 Carrier signal c(t) (a) DSB-SC modulator r(t) Received signal d (t) c'(t) (b) DSB-SC Demodulator Figure 1. DSB-SC modulator and demodulator. Low-pass filter o(t) Find the bandwidth of the modulating and modulated signals. What modifications do the above DSB-SC circuit need to go through so that the resultant modified circuit will operate as an AM circuit? Draw the equivalent AM circuit.
Transcribed Image Text:In DSB-SC, the modulation and demodulation processes are shown in block diagrams in Figure 1. Assume that m(t) = 10 cos 500t and c(t) = cos 5000t 60 m(t) Modulating signal Modulated signal PDBS-SC (t) 3 Carrier signal c(t) (a) DSB-SC modulator r(t) Received signal d (t) c'(t) (b) DSB-SC Demodulator Figure 1. DSB-SC modulator and demodulator. Low-pass filter o(t) Find the bandwidth of the modulating and modulated signals. What modifications do the above DSB-SC circuit need to go through so that the resultant modified circuit will operate as an AM circuit? Draw the equivalent AM circuit.
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