Electronics and Communication Engineering - Communication Systems - Discussion
Discussion Forum : Communication Systems - Section 7 (Q.No. 21)
21.
Two sinusoidal signals of same amplitude and frequencies 10 kHz and 10.1 kHz are added together. The combined signal is given to an ideal frequency detector. The output of the detector is
Answer: Option
Explanation:
Y(t) = A cos (2p x 104 t) + A cos (2p x 10.1 x 103 t)
when passed through high pass filter,
Output will be A cos (2p x 10.1 x 103 t) only.
Discussion:
5 comments Page 1 of 1.
ARS said:
5 years ago
Ideal freq detector is proportional to the phase of the given signal. Then will get a constant value.
Manvith said:
6 years ago
Frequency detector converts frequency variations to equivalent voltage variations,
here freq = 10.1k(const).
here freq = 10.1k(const).
Priya singh said:
6 years ago
The correct Answer is D.
Vijeet said:
7 years ago
Why are we passing Y(t) through high pass filter?
Virat said:
7 years ago
Please explain the answer.
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