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hello can you help me with this question for analog communication lesson?

m (t) = rect (50t), c (t) = cos (2πfct) fc = 100 khz the m (t) message sign c (t) given above is subjected to double sideband modulation (dsb) with carrier signal.

 a) obtain the modulated signal and draw the amplitude spectrum in the frequency domain. (write down all the necessary values (center frequency, points where axes are cut, etc.) in the axes of the graph) 

b) calculate the energy of the modulated signal. (specify units)

Analog   communication   Modulation   
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Answer #1

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