Roll No. | Total No. of Pages : 02
Total No. of Questions : 18
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B.Tech. (ECE) (Sem.-5)DIGITAL SIGNAL PROCESSING
Subject Code : UC-BTEC-502-18
M.Code : 78758
Time : 3 Hrs. Max. Marks : 60
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INSTRUCTION TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
SECTION-A
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Answer briefly :
- What is the importance of window technique?
- What do you mean by twiddle factor? Show how it is cyclic?
- What is the difference between auto correlation and cross correlation?
- What are energy and power signals?
- Explain low pass Chebyshev filter.
- A band pass signal extends from 1 KHz to 2 KHz. What is the minimum sampling frequency needed to retain all information in the sampled signal?
- What is time shifting property of DFT?
- A continuous time signal y(t) = x(t?) is causal or non-causal.
- Find the zeros of h[n] = d[n]+1/6 d[n-1]-1/6 d[n-2].
- Find the z transform of x(n) = d(n+3).
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SECTION-B
- Write down the applications of DSP.
- Discuss the various types of signals.
- Draw the FIR Direct Form I structure and find its transfer function.
- Find the cross-correlation for a discrete time system has x[n] =2, 1,3, 1 and h[n] =1, 2,2, 3.
- Determine the Z-transform of the signal x(n) = (-1)n u(n).
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SECTION-C
- Explain the architecture of TMS 320C6XX processor.
- Write short note on :
- Goertzel Algorithm
- Limitations of analog processors.
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- Solve using 8-point DFT butterfly method x(n)= {1, 3,2,4, 1, 1, 2, 2}.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
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This download link is referred from the post: PTU B.Tech 5th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University
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