Assume a normalized message signal has power spectral density
Sm(f) = (b|f|)/W, |f|<=W
= 0, otherwise
where b and W are constants. Assume white Gaussian noise of zero means and power spectral density No/2 is added to the signal at the receiver input. Find the expression for SNRout (SNR at the output of the receiver) when:
a) the signal is transmitted by DSB-SC
b) the signal is transmitted by SSB
c) the signal is transmitted by Amplitude Modulation (DSB) with modulation index a=0.3