Download PTU B-Tech EEE 2020 Dec 6th Sem 71130 Digital Signal Processing Question Paper

Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) (EEE)- Electrical And Electronics Engineering 2020 December 6th Sem 71130 Digital Signal Processing Previous Question Paper

Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech.(Electronics & Electrical) (2012 to 2017)
B.Tech.(Electrical & Electronics) (2013 Onwards)
(Sem.?6)
DIGITAL SIGNAL PROCESSING
Subject Code : BTEEE-601
M.Code : 71130
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Write briefly :
1. Write down the basic elements of digital signal processing system?
2. What do you understand by LTI system?
3. Write Laplace and Z transform of sin(t) and cos(t).
4. Define sampling & Nyquist rate?
5. What is Goertzel algorithm? State its applications.
6. Distinguish between FIR and IIR filter.
7. What is the use of pipelining in DSP processor?
8. What is Gibbs phenomena?
9. What are benefits of representing a digital filter in the block diagram form?
10. State the desirable features of DSP processors.
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SECTION-B
11. Find the z-transform of each of the following sequences :
n
n
1
a) x(n) 2 u(n) 3
u(n).
2
b) x(n) cos(n )u(n).
12. Discuss Linear filtering approach for the computation of DFT.
13. Consider the causal linear shift-invariant filter with system function :
1
1 0.875z
H (z)
1
2
1
(1 0.2z
0.9z )(1 0.71 )
Draw a signal flow graph for this system using
a) Direct form I
b) Direct form II
14. Draw the architecture of TMS 320C5X.
15. Describe different types of finite word length effects present in Digital filters and ways to
rectify them, with the help of examples.
SECTION-C
16. Find the Kaiser window parameters, and N, to design a low-pass filter with a cut off
frequency c = /2, a stop band ripple s = 0.002, and a transition bandwidth no larger than
0.1 .
17. Discuss the importance of ROC in digital signal processing.
18. Write a short notes on :
a. Bilinear Transformation
b. Circular convolution
NOTE : Disclosure of identity by writing mobile number or making passing request on any
page of Answer sheet will lead to UMC against the Student.
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