B.TechSemester 52024-25Digital Signal ProcessingBEE057
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Digital Signal Processing (BEE057) - AKTU Question Paper 2024-25

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Digital Signal Processing Previous Year Question Paper for B.Tech Semester 5, academic session 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 5
Session:2024-25
University:AKTU / UPTU

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Questions Asked in 2024-25

Digital Signal Processing (BEE057) — complete question paper · 70 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 07 = 14
  • a
    Draw the sequence x(n) = u(n) – u(n-4)
  • b
    Calculate the DTFT for x(n) = 𝑎௡u(n)
  • c
    Enlist the advantages of mul tirate signal processing
  • d
    Sate Nyquist theorem
  • e
    State circular convolution property of DFT
  • f
    In what way Kaiser window is s uperior to other window functions?
  • g
    What is the need of FFT algorit hm? Why is FFT called so?
Section BAttempt any three of the following: 07 x 3 = 21
  • a
    Draw the structures of cascade and parallel realization of
  • b
    Explain the interpolation and decimation process with an example
  • c
    Compute the circular convolution of two sequences x (n) = {1 , 1, 2, 2}
    and y (n) = {1, 2, 3, 4} using graphical method
  • d
    Design a high pass filter usi ng Hamming window with a cut-of f frequency of 1.2 rad/sec and order of filter is 9
  • e
    Given x (n) = {1, 2, 3, 4, 4, 3, 2, 1}, find X (k) using DIT FFT algorithm
Section CAttempt any one part of the following: 07 x 1 = 07
  • a
    Give the system function Realize using ladder structure
  • b
    Obtain the FIR linear phase and cascade realization of the s ystem function
  • a
    What is meant by sampling? Sta te and prove the sampling theorem
  • b
    Explain the process of recons truction of the signal from its samples
  • a
    Explain the properties of t widdle factor. Find the 4 point D FT of the sequence x (n) = cos ସ using matrix method
  • b
    Find the output y(n) of a filter whose impulse response is h (n) = {2,2,1}
    and input signal x(n) = {3,0,-2,0,2,1,0,-2,-1,0} using overlap add
method
  • a
    A digital filter with a 3 dB bandwidth of 0.25π is to be des igned from the analog filter whose system response is Use bilinear transformation and obtain H (z)
  • b
    For the analog transfer function H(s) = ሺ௦ାଵሻሺ௦ାଶሻ Determine H (z) using impulse invariant technique
  • a
    Given x (n) = 2 n and N=8, find DFT of x(n) using DIF FFT algorithm
  • b
    Explain the applications of Wavelet cosine transform

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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