The conventional amplitude modulated signal is in the time domain; m(t) message sign, Ac carrier the amplitude of the signal and fc the frequency of the carrier signal in the form below. What we did in our laboratory with a sinusoidal message signal with a single tone (that is, a single frequency component) The modulated signal time we obtained as a result of the traditional amplitude modulation experiment in the domain Qm (t)= 0.5cos (1800πt)+ 2cos (2000πt)+ 0.5 cos(2200πt) a) Draw the spectrum
The conventional amplitude modulated signal is in the time domain; m(t) message sign, Ac carrier the amplitude of the signal and fc the frequency of the carrier signal in the form below. What we did in our laboratory with a sinusoidal message signal with a single tone (that is, a single frequency component) The modulated signal time we obtained as a result of the traditional amplitude modulation experiment in the domain
Qm (t)= 0.5cos (1800πt)+ 2cos (2000πt)+ 0.5 cos(2200πt)
a) Draw the spectrum of the modulated signal in the frequency domain. In the modulated signal Show the lower sideband and the upper sideband. Sideband frequencies with carrier signal specify.
b) Determine the message sign in the time domain m(t) and the carrier sign in the time domain c(t). These signs Write the Fourier transform and plot it in the frequency domain.
c) Draw the modulated sign in the time domain. find the Modulation index (μ) .
d) Interpret by determining the ratio of the power in the sidebands to the total power.
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