Analog Communications – 1 – 1

1. For a Gaussian process, auto-correction also implies –

(a) Statistical dependence
(b) Statistical independence
(c) Ergodic process
(d) None of these

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

2. An ergodic process in communication present if many random signals have-

(a) Identical time averages
(b) Identical ensemble averages
(c) Identical time and ensemble averages
(d) None of the above

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

3. Spectral density expresses –

(a) Average voltage
(b) Average current
(c) Average power in a waveform as a function of frequency
(d) None of the above

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

4. Which of the following is not true regarding auto-correlation function?

(a) It is an average function
(b) It is defined only for periodic signals
(c) It is measure of both time variation and statistical dependence
(d) It is non-unique description of signals

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

5. For a periodic function, the spectral density and auto-correlation functions are –

(a) Fourier transform pair
(b) Laplace transform pair
(c) one and the same thing
(d) None of the above

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

1 2 3 4

General Knowledge Books

Be a Part of the New & Next

MCQs fb  MCQs G+

Share the Knowledge

MORE INFORMATION
GATE Total InfoGATE 2020 BooksFree Notes
IES Total InfoIES 2020 BooksFree Mock tests
JAM Total InfoJAM 2020 BooksEngg Diploma
PSUs Total InfoM Tech Total InfoUGC NET Total Info
Copy Protected by Chetan's WP-Copyprotect.