message or information signal will be encoded onto the carrier signal. i) Sketch a DSB-SC signal in the time-domain, identifying any key features. Include the message signal in your plot. Describe the key differences between your sketch and that of a DSB- AM signal. ii) Calculate the operating bandwidth of the DSB-SC signal assuming the message signal is audio (40 Hz to 4 kHz). Would this be any different if DSB-AM were used instead? Explain your answer.

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
a) In communications, the modulation method we use dictates how the
message or information signal will be encoded onto the carrier
signal.
i)
ii)
Sketch a DSB-SC signal in the time-domain, identifying any
key features. Include the message signal in your plot. Describe
the key differences between your sketch and that of a DSB-
AM signal.
Calculate the operating bandwidth of the DSB-SC signal
assuming the message signal is audio (40 Hz to 4 kHz). Would
this be any different if DSB-AM were used instead? Explain
your answer.
Transcribed Image Text:a) In communications, the modulation method we use dictates how the message or information signal will be encoded onto the carrier signal. i) ii) Sketch a DSB-SC signal in the time-domain, identifying any key features. Include the message signal in your plot. Describe the key differences between your sketch and that of a DSB- AM signal. Calculate the operating bandwidth of the DSB-SC signal assuming the message signal is audio (40 Hz to 4 kHz). Would this be any different if DSB-AM were used instead? Explain your answer.
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