B.TechSemester 52023-24Digital Signal ProcessingKEC503
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Digital Signal Processing (KEC503) - AKTU Question Paper 2023-24

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 2023-24. 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:2023-24
University:AKTU / UPTU

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Questions Asked in 2023-24

Digital Signal Processing (KEC503) — extracted question text · 100 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 10 = 20
  • a
    Distinguish between IIR and FIR filter. 2 1
  • b
    Define linear phase response of a filter. 2 1
  • c
    Compare bilinear transformation and Impulse invariant method o f IIR filter design
  • d
    Distinguish between Butterworth and Chebyshev (Type-I) filter. 2 2
  • e
    State the need for employing wi ndow for designing FIR filter? 2 3
  • f
    The most straight forward approa ch to filter design is to trun cate the impulse response of an ideal IIR filter. Why this is usually an undesirable approach?
  • g
    Develop the 4-point DFT of t he sequence x(n) = {1,1}. 2 4
  • h
    How is the FFT algorithm algor ithm applied to determine invers e discreate Fourier transform? i. Highlight the features of a com mercial digital signal processor. 2 5 j. Explain the concept of multistag e sampling rate conversion. 2 5
Section BAttempt any three o f t h e f o l l o w i n g : 10x3=30
  • a
    Determine the cascade and parallel realization for the syste m transfer function
  • b
    Use bilinear transformation to convert low pass filter into a high pass filter with pass band edge at 100 Hz and Fs=1 kHz
  • c
    Design a low pass FIR filter for the following specification s using rectangular window function. Cut-off frequency = 500 Hz; Sampli ng frequency = 2000 Hz; Order of the filter = 10
  • d
    The first five points of the 8-point DFT of a real valued se quence are {0.25,0.125-j0.3018,0,0.12-j0.0518,0}. Determine the remaining three points
  • e
    Explain the various types of addressing modes of digital sig nal processor with suitable example
Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10x1=10
  • a
    Realize the given H(z) fo r using ladder structure
  • b
    Obtain the direct form-I and direct form-II realization of a given LTI system: y(n) = - 0.1y(n-1) + 0.72y(n-2) + 0.7x(n) - 0.25x(n-2)
  • a
    Convert the analog filte r with system function into a digital IIR filter by means of the impulsive invariance method
  • b
    Design a Chebyshev filter for the following specification using bilinear transformation. | Hejw| ≤ 0.2 0.6π ≤ w ≤ π
  • a
    What is Hamming Window Function? Obtain its frequency domain characteristics
  • b
    Design a low pass filter using Kaiser window satisfying the specifications given filter: Passband cutoff frequency F Stopband cutoff frequency Fs = 250 Hz Sampling frequency Ft = 1000 Hz Passband attenuation Ap = 0.1dB Stopband attenuation As = 40 dB
  • a
    Determine the DFT of the given sequence x(n) = {1,2,3,4,4,3, 2,1} using DIF FFT algorithm
  • b
    Find the output y(n) of a fil ter whose impulse response is h(n) = {1,1,1}
    and input signal x(n) = {3,-1,0,1,3,2,0,1,2,1} using overlap add method
  • a
    Explain the process of multira te signal processing in detail. Also, enlist the advantages of multirate signal processing
  • b
    Write the short note on: (i) Recursive Least Square Algorithm (ii) (ii) Window LMS Algorithm

Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

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