Question
Your message is a sinusoidal signal having a frequency of 6006 and the maximum amplitude of the signal is 18. You have also managed to
Your message is a sinusoidal signal having a frequency of 6006 and the maximum amplitude of the signal is 18. You have also managed to generate a carrier signal having the same amplitude as the message signal and the frequency being equal to 182016.
At first, you try to send your message by DSB-WC (AM) modulation process. In this
regard,
Write down the equations of your message signal and carrier signal.
Write the equation of the AM modulated signal.
sketch how your AM modulated signal looks in the frequency domain.
Provide the details of the modulation and demodulation technique of your designed
system with nrcessary diagram.
Next, to save bandwidth, you try to send the message using DSB-SC modulation. To this
end,
Provide the equation of DSB-SC modulated signal.
sketch how your DSB-SC modulated signal looks in the frequency domain.
Provide the details of the modulation and demodulation technique of your designed
system with necessary diagram.
To be certain of sending the information, now you adopt digital technique instead of
analog techniques. You plan to convert your analog message signal to digital signal and
send the message via Pulse Code Modulation (PCM) technique. To this end,
Describe and sketch how you'll convert your analog message signal to a digital signal in detail. [i.e., how you will do sampling, quantization and encoding]
Provide the detailed sktech diagrams of the components required on the transmitter and
receiver side of your designed PCM system.
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