M G M’S CLOLLEGE OF ENGINEERING
DEPARTMENT OF ELECTRONICS & TELECOMMUNICATION ENGG.
Assignment Ist
SUBJECT: DIGITAL COMMUNICATION Class: T.E (I & II)
SUBJECT TECHER: SAYED SHOAIB ANWAR
NOTE: All the students should submit the assignment on or before 25/02/14.
1.Reconstruct the signal g (t) from the sequence of sample value g (n/2W) with the help of necessary expression. OR
State and prove the sampling theorem in time domain & Frequency domain. (S.H Pg.No.134-136)
2. What is mean by Aliasing? What are the corrective measures for it? OR
Explain the concept of Bound on Aliasing Error. (S.H Pg.No.146-149).
3. Prove that , For flat-top Sample in pulse amplitude modulation.
(S.H Pg.No.156-159).
4. Explain the sampling procedure in detail. (S.H Pg.No.153-154).
5. Prove that if a stationary massage process contains no frequencies higher then W Hz, It may be reconstructed from its samples at a sequence of points spaced 1/2Wsecond apart with zero Mean Squared Error. (S.H Pg.No.143-146).
6. Define PAM waves & Explain PAM in detail. (S.H Pg.No.161-162).
7. Explain in detail block diagram generation method of PPM by considering PWM generation first.
8. Explain the concept of TDM with suitable block diagram. (S.H Pg.No.162-163).
9. Explain PCM in detail with suitable block diagram. (S.H Pg.No.172-180).
10. Draw and Explain DPCM System. (S.H Pg.No.200-203).
11. Explain the concept of Delta Modulation with the block diagram of transmitter and receiver.
(S.H Pg.No.203-206).
12. How we can improve the performance of Delta Modulator with Adaptive Delta Modulator, Explain in detail. (S.H Pg.No.208-210).
13. Explain the concept of AQF & AQB with satiable diagram. (S.H Pg.No.211-212).
14. Explain the concept of APF & APB with satiable diagram. (S.H Pg.No.213-214).
15. Explain any one example of long- haul telecommunication network. (S.H Pg.No.225-226).
16. What are the advantages of digital representation over analog? (S.H Pg.No.172).
Subject Incharge
Sayed Shoaib Anwar