Download PTU B.Tech 2021 Jan ECE 5th Sem 78758 Digital Signal Processing Question Paper

FirstRanker.com

Roll No. | Total No. of Pages : 02
Total No. of Questions : 18

--- Content provided by FirstRanker.com ---

--- Content provided by FirstRanker.com ---

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

SECTION-A

--- Content provided by FirstRanker.com ---

Answer briefly :

1. What is the importance of window technique?
2. What do you mean by twiddle factor? Show how it is cyclic?
3. What is the difference between auto correlation and cross correlation?
4. What are energy and power signals?

--- Content provided by FirstRanker.com ---

5. Explain low pass Chebyshev filter.
6. 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?
7. What is time shifting property of DFT?
8. A continuous time signal y(t) = x(t?) is causal or non-causal.
9. Find the zeros of h[n] = δ[n]+1/6 δ[n-1]-1/6 δ[n-2].

--- Content provided by FirstRanker.com ---

10. Find the z transform of x(n) = δ(n+3).

SECTION-B

11. Write down the applications of DSP.
12. Discuss the various types of signals.
13. Draw the FIR Direct Form I structure and find its transfer function.

--- Content provided by FirstRanker.com ---

14. Find the cross-correlation for a discrete time system has x[n] =2, 1,3, 1 and h[n] =1, 2,2, 3.
15. Determine the Z-transform of the signal x(n) = (-1)ⁿ u(n).

SECTION-C

16. Explain the architecture of TMS 320C6XX processor.
17. Write short note on :
    1. Goertzel Algorithm

    --- Content provided by FirstRanker.com ---

    2. Limitations of analog processors.
18. 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.

FirstRanker.com

--- Content provided by FirstRanker.com ---