CS2204 Analog And Digital Communication MJ2014 Question Paper

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Anna University Question Paper Code : 51340
B.E./B.Tech. DEGREE EXAMINATION, MAY/JUNE 2014. 

Third Semester 

Computer Science and Engineering 

CS 2204/ CS 36/EC 1207/080230008/10144 CS 305 — ANALOG AND DIGITAL COMMUNICATION 

(Regulation 2008/2010)

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PART A — (10 x 2 =- 20 marks) 

1. Define angle modulation.
2. What is modulation index and percent modulation?
3. Define Shannon limit for information capacity.
4. How are bit rate and baud rate related?
5. What is slope overload error?
6. Define sampling rate.
7. What is the function of a modem?
8. What are the advantages and disadvantages of error detection?
9. What is pseudo–noise?
10. What is meant by spread spectrum?



PART B (5 x 16 = 80 marks)

11. (a) (i) Derive equations for AM voltage and power distribution. (8)
(ii) Explain the frequency analysis of angle modulated waves. (8) Or
(b) (i) Write a note on frequency deviation of FM wave. (8)
(ii) Describe the generation of FM. (8)