Download PTU B.Tech 2020 March EEE 5th Sem Digital Signal Processing Question Paper

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Roll No. [ ] Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Electronics & Computer Engg.) (Sem.-5,6)
DIGITAL SIGNAL PROCESSING
Subject Code : BTEC-502

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.

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3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

1. Answer briefly :
   1. Why the ROC of Z-transform can not contain any pole?
   2. What is the difference between energy and power signal?
   3. Give the computational efficiency of FFT over DFT.

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   4. What is correlation?
   5. Differentiate FIR filters and IIR filters.
   6. List the advantages of digital signal processing.
   7. Write the desirable features of DSP processors.
   8. What do you mean by symmetric and anti-symmetric FIR filters?

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   9. Give the properties of linear time invariant discrete time system.
   10. Give the two properties of ROC.

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SECTION-B

1. Explain the properties of Z-transform.
2. Check whether the following is linear, time invariant, casual and stable :
   y(n) = x(n) + nx(n+1).

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3. Determine the Z-transform of the signal x(n) = (-1)ⁿ 2^-nu(n).
4. Explain the direct form realization of FIR filter.
5. Compute the 4 point DFT of x(n) = {0,1,2,3}

SECTION-C

1. Explain the different types of structures for the realization of IIR filter.

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2. Write Short notes on :
   1. Magnitude and phase response of FIR filters.
   2. Goertzel algorithm
3. Explain in detail the architectural features of a DSP processor.

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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