Pondicherry University 2008 B.Tech Electronics and Communications Engineering Spread Spectrum (SS) Communication - Question Paper

Year: November/December 2008
Semester: 7th Semester
Subject: Spread Spectrum (SS) Communication
Paper Code: EV 305 R
Department: Electronics and Communication Engineering
Duration: three Hours Marks: 75

ans any 5 ques. by choosing 1 full from every unit

All ques. carry equal Marks

Unit I

1) (a) discuss the processing gain and other fundamental parameters. (7)
(b) explain about Jamming methods. (8)

(Or)

2) Explain the subsequent
(a) Correlation properties (7)
(b) Gold codes (8)

Unit II

3) (a)Describe briefly about the uncoded bit fault probability for arbitrary jammer. (12)
(b)What is meant by Cheuoff bound? (3)

(Or)

4) Discuss the subsequent
(a) Multitune Jammer. (8)
(b) Coded DS/BPSK System. (7)

Unit III

5) Write Short Notes on
(a) Coherent FH systems. (8)
(b) Frequency Synthesis (7)

(Or)

6) Explain in detail about Time hopping SS technique. (15)

Unit IV

7) (a) explain briefly about Acquisition and Tracking in DS SS. (8)
(b) provide brief notes on FHSS receivers. (7)

(Or)

8)
9) Explain the subsequent
(a) Delay Locked Loop (8)
(b) Tau-Dither Loop (7)

Unit V

10) Discuss the application of spread spectrum in Satellite communication. (15)

(Or)

11) Describe briefly about the Anti jam military communication and Mobile Communication. (15)

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All the best for examinations
Have a nice day and Love peace all time
With regards
Raaghavan Krishnamurthy

Earning:   Approval pending.