[ 30 points] a) If a double-side band (DSB) signal is given below what could be the message signal;
m(t)
and the carrier signal;
c(t)
? (b) For a single-side band (SSB), upper side-band (USB) modulation scenario, If the base-band signal is
m(t)=2sin^(2)(t)
and the carrier signal is
c(t)=4sin(20\pi t)
, draw the spectrum of USB modulated signal;
v(t)
.

Question

[ 30 points] a) If a double-side band (DSB) signal is given below what could be the message signal;

m(t)

and the carrier signal;

c(t)

? (b) For a single-side band (SSB), upper side-band (USB) modulation scenario, If the base-band signal is

m(t)=2sin^(2)(t)

and the carrier signal is

c(t)=4sin(20\pi t)

, draw the spectrum of USB modulated signal;

v(t)

.

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