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Problem 3 The modulating signal m(t) = 4 cos(200t) cos(400nt) is multiplied by the carrier c(t) = cos(2nfct), where fe %3D = 1000 Hz. Determine and sketch the spectra of the modulating %3D and modulated signals. Identify the upper sideband (USB) and the lower sideband (LSB) spectra in the DSB-SC modulated signal.

Problem 3 The modulating signal m(t) = 4 cos(200t) cos(400nt) is multiplied by the carrier c(t) = cos(2nfct), where fe %3D = 1000 Hz. Determine and sketch the spectra of the modulating %3D and modulated signals. Identify the upper sideband (USB) and the lower sideband (LSB) spectra in the DSB-SC modulated signal.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Problem 3 The modulating signal m(t) = 4 cos(200nt) cos(400nt) is multiplied by the carrier c(t) = cos(2nfct), where f. = 1000 Hz. Determine and sketch the spectra of the modulating and modulated signals. Identify the upper sideband (USB) and the lower sideband (LSB) spectra in the DSB-SC modulated signal. Problem 4 In a DSB-SC system, the carrier frequency is 10 kHz and the message signal is given by m(t) = 2 sin(2000t) + 4sin(4000nt). Find and sketch the spectra of the message signal and modulated signal. Identify the upper sideband (USB) and the lower sideband (LSB) spectra in the DSB-SC modulated signal.
Transcribed Image Text:Problem 3 The modulating signal m(t) = 4 cos(200nt) cos(400nt) is multiplied by the carrier c(t) = cos(2nfct), where f. = 1000 Hz. Determine and sketch the spectra of the modulating and modulated signals. Identify the upper sideband (USB) and the lower sideband (LSB) spectra in the DSB-SC modulated signal. Problem 4 In a DSB-SC system, the carrier frequency is 10 kHz and the message signal is given by m(t) = 2 sin(2000t) + 4sin(4000nt). Find and sketch the spectra of the message signal and modulated signal. Identify the upper sideband (USB) and the lower sideband (LSB) spectra in the DSB-SC modulated signal.
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Given that 3.

mt=4cos200πtcos400πtct=cos2πfctfc=1000Hz

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