A frequency modulated signal is given by S(t)=10sin[16π×10⁶t + 20 sin 4π×10³t] volts. Find modulation index,modulation frequency deviation carrier frequency and bandwidth.
Answers
Answered by
0
Answer:
(101)2
=(100+1)2
Using (a+b)2=a2+b2+2ab
(100+1)2=1002+12+2×100×1
=10000+1+200
=10000+201
=10201.
Answered by
0
Answer:
V(t)=10+
2
3
[2cosAsinB]
=10+
2
3
[sin(A+B)−sin(A−B)]
10+
2
3
[sin(57.2×10
4
t)−sin(52.8×10
4
t)]
ω
1
=57.2×10
4
=2πf
1
f
1
=
2×(
7
22
)
57.2×10
4
=9.1×10
4
≈91KHz
f
2
=
2×(
7
22
)
52.8×10
4
≈84KHz
Side band frequency are
f
1
=f
c
−f
w
=
2π
52.8×10
4
≈85.00kHz
f
2
=f
c
+f
w
=
2π
57.2×10
4
≈90.00kHz
Explanation:
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