zain IQAM Modulatio...->AM Modulation1. What is the main feature in AM modulation, that is used tojudge if the modulation is good or not? Explain withexamples.2. Can AM modulated signal change phase and/or frequency?Explain the reason.3. What is modulation index? Its formula?4. Plot an AM modulated signal, that has an information signalm(t) = 10 sin(10nt) and a carrier signalc(t) = 15cos(1000t). Calculate the modulation index (u). Is it a goodmodulation? If no, suggest a change in one of the signalsabove and calculate u again, so that it approaches ideal case.5. Draw the modulation block diagram of AM....

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5. Draw the modulation block diagram of AM.

Introductory Circuit Analysis (13th Edition)

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Publisher:Robert L. Boylestad

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Concept explainers

Amplitude modulation

A radio signal can carry information in the form of sound or image for broadcasting or communication. For it to be sent to a greater distance, the signal must be changed or modulated in some way. One of the easiest way is to change the amplitude of the signal with variations of the video or the audio signal. This is called Amplitude Modulaton. In this modulation information of message is carried in amplitude of carrier signal.

Question

zain IQ
AM Modulatio...
->
AM Modulation
1. What is the main feature in AM modulation, that is used to
judge if the modulation is good or not? Explain with
examples.
2. Can AM modulated signal change phase and/or frequency?
Explain the reason.
3. What is modulation index? Its formula?
4. Plot an AM modulated signal, that has an information signal
m(t) = 10 sin(10nt) and a carrier signal
c(t) = 15
cos(1000t). Calculate the modulation index (u). Is it a good
modulation? If no, suggest a change in one of the signals
above and calculate u again, so that it approaches ideal case.
5. Draw the modulation block diagram of AM.
...

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