Electronics and Communication Engineering - Communication Systems
Exercise : Communication Systems - Section 1
- Communication Systems - Section 13
- Communication Systems - Section 25
- Communication Systems - Section 24
- Communication Systems - Section 23
- Communication Systems - Section 22
- Communication Systems - Section 21
- Communication Systems - Section 20
- Communication Systems - Section 19
- Communication Systems - Section 18
- Communication Systems - Section 17
- Communication Systems - Section 16
- Communication Systems - Section 15
- Communication Systems - Section 14
- Communication Systems - Section 1
- Communication Systems - Section 12
- Communication Systems - Section 11
- Communication Systems - Section 10
- Communication Systems - Section 9
- Communication Systems - Section 8
- Communication Systems - Section 7
- Communication Systems - Section 6
- Communication Systems - Section 5
- Communication Systems - Section 4
- Communication Systems - Section 3
- Communication Systems - Section 2
16.
In radar systems PRF stands for
Answer: Option
Explanation:
PRF in radar systems means pulse repetition frequency.
17.
Which of the following cannot be the Fourier series expansion of a periodic signal?
Answer: Option
Explanation:
x(t) = cos t + 0.5
not satisfies the Dirichlet condition.
The integration of constant term is ∞.
18.
Which of the following is the indirect way of FM generation?
Answer: Option
Explanation:
It generates FM through phase modulation.
19.
A telephone exchange has 9000 subscribers. If the number of calls originating at peak time is 10, 000 in one hour, the calling rate is
Answer: Option
Explanation:
Calling rate is the number of calls per subscriber.
20.
If C is capacity of noisy channel, (bits/s), δf is bandwidth Hz and S/N is signal to noise ratio, then
Answer: Option
Explanation:
This is Shannon-Hartley theorem.
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