The message signal m(t) = 2 cos 200t + 3 sin(600t + π 3 ) modulates the carrier signal c(t) = A cos(700πt), using DSB-SC (dual s
ide-band, suppressed-carrier) modulations. Find the time domain and frequency domain representation of the modulated signal and plot the spectrum (Fourier transform) of the modulated signal. What is the power content of the modulated signal?
1 answer:
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First, simplify
Second, simplify
Third, simplify
Fourth, regroup terms. / Your problem should look like: 6 -
Fifth, multiply both sides by 7. / Your problem should look like: 42 - x = 126
Sixth, subtract 42 from both sides. / Your problem should look like: -x = 126 - 42
Seventh, simplify 126 - 42 to 84. / Your problem should look like: -x = 84
Eighth, multiply both sides by -1. / Your problem should look like: x = -84
Answer: x = -84