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(Solved): The upper single side band (SSB) modulated wave that is given by s(t)=(1)/(2)m(t)cos(2\pi f_(c)t)-(1 ...
The upper single side band (SSB) modulated wave that is given by
s(t)=(1)/(2)m(t)cos(2\pi f_(c)t)-(1)/(2)hat(m)(t)sin(2\pi f_(c)t) where m(t) is the message signal is
applied to a product modulator coherent detector circuit as shown in Fig. 2.
a. Determine the general expression for the demodulated signal v_(0)(t) after the
lowpass filter circuit. Please show your analysis steps.
b. Determine and plot the upper sideband frequency spectrum of the
transmitted modulated wave, S(f) for \beta >0, if the message signal is given
by m(t)=8cos(160\pi t)+4cos(300\pi t), and the carrier frequency is f_(c)=1
kHz and A_(c)=1.
Fin 9 Coherent Detector circuit for Question 3.