For the sinusoidally modulated “DSB-LC" waveform shown in the Fig. below Find : • Find the modulation index. • Sketch a line spectrum. • Calculate the ratio of the average power in the sidebands to that in the carrier. • Determine the amplitude of the additional carrier which must be added to obtain a modulation index 20%

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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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For the sinusoidally modulated “DSB-LC"
waveform shown in the Fig. below Find : •
Find the modulation index. • Sketch a line
spectrum. • Calculate the ratio of the
average power in the sidebands to that in
the carrier. • Determine the amplitude of
the additional carrier which must be added
to obtain a modulation index 20%
98 V
48 V
-48 V
- 98 V
Transcribed Image Text:For the sinusoidally modulated “DSB-LC" waveform shown in the Fig. below Find : • Find the modulation index. • Sketch a line spectrum. • Calculate the ratio of the average power in the sidebands to that in the carrier. • Determine the amplitude of the additional carrier which must be added to obtain a modulation index 20% 98 V 48 V -48 V - 98 V
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