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In an amplitude modulation system, the message signal is given by Fig.below and the carrier frequency is 1 kHz. The modulator output is SAM() = 2[b+0.5m(t)]cos wet %3D (a) Determine the average message power. (b) If b 1, determine the modulation index and the modulation power efficiency. (c) Sketch the modulated signal of part (a) in the time domain. (d) If b = 0.5, repeat parts (a) and (b). %3D m(1) -0.05 0 0.05

In an amplitude modulation system, the message signal is given by Fig.below and the carrier frequency is 1 kHz. The modulator output is SAM() = 2[b+0.5m(t)]cos wet %3D (a) Determine the average message power. (b) If b 1, determine the modulation index and the modulation power efficiency. (c) Sketch the modulated signal of part (a) in the time domain. (d) If b = 0.5, repeat parts (a) and (b). %3D m(1) -0.05 0 0.05

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
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Problem 4 In an amplitude modulation system, the message signal is given by Fig.below and the carrier frequency is 1 kHz. The modulator output is SAM() = 2[b+0.5m(t)]cos wet (a) Determine the average message power. (b) If b 1, determine the modulation index and the modulation power efficiency. (c) Sketch the modulated signal of part (a) in the time domain. (d) If b = 0.5, repeat parts (a) and (b). m(1) -0.05 0.05 -2+
Transcribed Image Text:Problem 4 In an amplitude modulation system, the message signal is given by Fig.below and the carrier frequency is 1 kHz. The modulator output is SAM() = 2[b+0.5m(t)]cos wet (a) Determine the average message power. (b) If b 1, determine the modulation index and the modulation power efficiency. (c) Sketch the modulated signal of part (a) in the time domain. (d) If b = 0.5, repeat parts (a) and (b). m(1) -0.05 0.05 -2+
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