Question: Using the message signal m (t) = 1/1 + t 2 , determine and sketch the modulated waves for the following methods of modulation: (a)

Using the message signal m (t) = 1/1 + t², determine and sketch the modulated waves for the following methods of modulation:
(a) Amplitude modulation with 50 percent modulation.
(b) Double sideband-suppressed carrier modulation.
(c) Single sideband modulation with only the upper sideband transmitted.
(d) Single sideband modulation with only the lower sideband transmitted.

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