SRM University 2007 B.Tech Electronics and Communications Engineering BANK : EC303 – DIGITAL SIGNAL PROCESSING - Question Paper

Z2+Z
42. obtain the inverse Z- transform of X(Z)= ------------- ; for ROC ? Z?>3
(Z -1)(Z-3)
using partial fraction expansion method.

UNIT- II
Part A:

1. What are the advantages of FIR filters?
2. What are the advantages of IIR filters?
3. Plot the magnitude response of ideal Low pass filters.
4. Plot the magnitude response of ideal High pass filters.
5. Plot the magnitude response of ideal Band pass filters.
6. Plot the magnitude response of ideal Band stop filters.
7. What are the 4 possible kinds of linear phase FIR filters?
8. What are the design techniques for linear phase IIR filters?
9. What is Gibbs Phenomenon?
10. Define FIR filters.
11. Define IIR filters.
12. How LTI systems behave as a frequency selective filter?
13. How phase distortion & delay distortion are introduced?
14. Write the steps involved in FIR filters.
15. How is constant group & phase delay achieved in linear phase FIR filters?
16. What is necessary & sufficient condition for the linear phase characteristic of an FIR filters?
17. Write the frequency response of linear phase LTI system with constant phase & group delay.
18. Write the magnitude & phase function of FIR filters when impulse response is symmetric & N is odd.


19. Write the magnitude & phase function of FIR filters when impulse response is symmetric & N is odd.
20. Write the magnitude & phase function of FIR filters when impulse response is anti-symmetric & N is even.
21. Write the magnitude & phase function of FIR filters when impulse response is symmetric & N is odd.
22. Write the magnitude & phase function of FIR filters when impulse response is anti-symmetric & N is even.
23. Compare IIR & FIR filters.
24. Compare Digital & analog filters.
25. Classify the filters based on frequency response.
26. Mention 2 properties that an analog filter should have for effective transformation.
27. What are the requirements for an analog filter to be stable & causal?
28. elaborate the requirements for a digital filter to be stable & causal?
29. Sketch the different tolerance limits to approximate an ideal Low pass filter & high pass filter.
30. Define ripples in a filter.
31. Mention any 2 techniques used for digitizing the transfer function of an analog filter.

Earning:   Approval pending.