3. For the AM demodulator in figure, v(t) = m(t)cos (2πfet + 4) with a constant where the message signal is m(t) v(t)- =Acos (2πfmt) and carrier signal is v(t) = cos (2πfet) with fm

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3. For the AM demodulator in figure, v(t) = m(t)cos (2πfet + 4) with a constant where the message
signal is m(t)
v(t)-
=Acos (2πfmt) and carrier signal is v(t)
= cos (2πfet) with fm <fm «fe.
H(f)^
H(f)
→ vo(t)
D
v₁(t)
vc(t)
-fM
0
fm f
Determine
(a) (12%) v₁(t);
(b) (13%) vo(t).
Transcribed Image Text:3. For the AM demodulator in figure, v(t) = m(t)cos (2πfet + 4) with a constant where the message signal is m(t) v(t)- =Acos (2πfmt) and carrier signal is v(t) = cos (2πfet) with fm <fm «fe. H(f)^ H(f) → vo(t) D v₁(t) vc(t) -fM 0 fm f Determine (a) (12%) v₁(t); (b) (13%) vo(t).
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