Electronics and Communication Engineering - Communication Systems - Discussion
Discussion Forum : Communication Systems - Section 1 (Q.No. 29)
29.
A carrier is simultaneously modulated by two sine waves having modulation indices of 0.4 and 0.3. The total modulation index will be
Answer: Option
Explanation:
m1 = 0.4, m2 = 0.3
.
Discussion:
3 comments Page 1 of 1.
Surendar said:
6 years ago
M(t)=√(m1^2+m2^2).
M1=0.4.
M2=0.3.
M(t)=√(0.4^2+0.3^2).
=√(0.4+0.3)^2 =>(0.4+0.3),
=0.7.
Then, how come 0.5 is the correct answer.
M1=0.4.
M2=0.3.
M(t)=√(0.4^2+0.3^2).
=√(0.4+0.3)^2 =>(0.4+0.3),
=0.7.
Then, how come 0.5 is the correct answer.
(1)
Sohail said:
3 years ago
0.4^2 = 0.16
0.3^2 = 0.9
√0.16+0.9 = √0.25 = 0.5.
0.3^2 = 0.9
√0.16+0.9 = √0.25 = 0.5.
(1)
TAMOGHNO NATH said:
1 decade ago
It's a very common example. Could you please analyze the details solution or discuss another example?
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