B.E-B.E Electronics and Communication Engineering Digital Signal Processing(Sathyabama University, Chennai, Tamil Nadu-2010)
Friday, 23 August 2013 06:55Duraimani
(Established under section 3 of UGC Act,1956)
Course & Branch :B.E - E&C
Title of the Paper :Digital Signal Processing Max. Marks :80
Sub. Code :517605/6C0083 Time : 3 Hours
Date :03/05/2010 Session :FN
PART - A (10 x 2 = 20)
Answer ALL the Questions
1. Name any four elementary time domain operations for discrete time signals.
2. What are the applications of FFT algorithms?
3. How is Kaiser window different from other window?
4. What condition on the DIR sequence H9n) is to be imposed in order that this filter can be called a linear phase filter.
5. State the periodicity property of DFT.
6. Differentiate Zero Input limit cycle and overflow limit cycle.
7. What is the use of an M file.
8. Explain the use of load function in Matlab.
9. Define pipelining.
10. List the elements in programme controller in TMSC320C54
PART – B (5 x 12 = 60)
Answer All the Questions
11. Find the Z transform and ROC of
(a) X(n) = Cos Q n U(n)
(b) X(n) = n2 u(N)
(c) X(N) = {1,0,3,-1,2}
(or)
12. Compute the eight point DFT of the sequence
X(n) = {0.5,0.5,0.5,0.5,0,0,0,0}
13. Show that a stable analog filter is mapped to a stable digital filter using bilinear transform.
(or)
14. Design an analog Chebychev filter with following specification:
Pass band ripple: 1 dB for 0 < = W <= 10 rad/sec
Stop band attenuation
-60 dB for W >= 50 rad/sec
15. Obtain direct form and cascade form realizations for the transfer function of an FIR systems given by
H(Z)= (1 – 1/4Z-1 + 3/8 Z-2) (1 – 1/8 Z-1 – ½ Z-2 )
(or)
16. Explain characteristics of a limit cycle oscillation with respect to the system described by the difference equation Y(n) = 0.95 Y(n-1) + X(n).
17. Explain in detail mathematical functions available in Matlab with example.
(or)
18. Explain the various functions available to plot a graph and also explain the MESH and Surface Plot.
19. Explain the Harvard architecture.
(or)
20. Explain the addressing modes of TMS320C5X.
| Earning: ₹ 3.75/- |
