ANALOG COMMUNICATION ENGINEERING [ACE] EC 208 I KTU B TECH QUESTIONS FOR SECOND YEAR [S4] STUDENTS | QUESTION BANK Part - |


APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

 ANALOG COMMUNICATION ENGINEERING I S4 KTU
 QUESTION PAPERS

ANALOG COMMUNICATION ENGINEERING [ACE] EC 208 I KTU B TECH QUESTIONS FOR SECOND YEAR [S4] STUDENTS | QUESTION BANK Part - |


PART A

1. What is noise?
2. Define noise figure.
3. Define partition noise
4. Give an example of low frequency noise.
5. Define noise equivalent temperature.
6. Compare frequency domain and time domain concepts.
7. Define signal to noise ratio and write its importance.

PART B

8. Write short notes on
1. Need for modulation
2. Elements of communication systems.
9. Assume that the narrow band noise n(t) is Gaussian and its power spectral density S N (f) is symmetric about the mid band frequency f c. show that the in-phase and quadrature components of n(t) are statistically independent.
10. Define shot noise and thermal noise with expressions
11. Discuss sine wave plus narrow band noise.

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