The signal x(t) is formed from the signal v(t) by AM modulation. Assume that v(t) = 3 – 4 cos(10£ + 1 /4) and that æ(t) = v(t) cos(30t) %3D (a) Draw the spectrum for v(t). (b) Draw the spectrum for a(t).
The signal x(t) is formed from the signal v(t) by AM modulation. Assume that v(t) = 3 – 4 cos(10£ + 1 /4) and that æ(t) = v(t) cos(30t) %3D (a) Draw the spectrum for v(t). (b) Draw the spectrum for a(t).
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Transcribed Image Text:The signal x(t) is formed from the signal v(t) by AM modulation. Assume that
v(t) = 3 – 4 cos(10t + 7/4)
and that
x(t) = v(t) cos(30t)
(a)
Draw the spectrum for v(t).
(b)
Draw the spectrum for x(t).
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