Digital Signal Processing (BEC503) - 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 (BEC503) — extracted question text · 70 marks · 3 Hours
Section AAttempt all questions in brief. 2 x 07 = 14
- aWhat are recursive and non-recursive systems?
- bExplain the difference between canonic and non-canonic structures
- cList the characteristics of Butterworth filters
- dWhat is an Infinite Impulse Response (IIR) filter?
- eExplain the purpose of windowing in FIR filter design
- fExplain the difference between linear and circular convolution
- gDefine decimation in MDSP
Section BAttempt any three of the following: 07 x 3 = 21
- aExplain the basic building blocks of digital signal processing
- bDiscuss the impulse invariant method of IIR filter designing and its properties
- cDesign an FIR filter to meet the following specification : Pass band edge = 2 kHz Stop band edge = 5 kHz Stop band attenuation = 42 dB Samplin
- gfrequency = 20 kHz Use Hanning window
- dCompute the circular convolution of two discrete time sequences x1 (n) = {1, 2, 1, 2} and x2 (n) = {3, 2, 1, 4}
- eExplain the principle behind quad rature mirror filters (QMF) an d their use in MDSP. Describe the advantages of MDSP in sub-band coding
Section CAttempt any one part of the following: 07 x 1 = 07
- aObtain the parallel form realization for the system function given below
- bExplain the direct form realization of FIR systems
- aWhat is frequency warping effect? How this problem is overcome in bilinear transform method of IIR filter design ?
- bDesign a Butterworth low pass analog filter for the following specification : i. Pass band gain required : 0.9 ii. Frequency up to which pass band gain must remain more or le ss steady: 100 rad/sec. iii. Gain in attenuation band : 0.4 iv. Frequency from which the attenuation must start : 200 rad/sec
- aWhat is Gibb’s phenomenon? Describe the concept of windowing in FIR filter design
- bDefine coefficient quantization error and quantization noise in digital filters. Explain the effects of truncation and rounding on quantization noise
- aWrite a short note on the following : i. Butterfly computation ii. Bit reversal
- bList the key properties of the DFT and provide brief explanations of each
- aExplain the significance of Mu ltirate digital signal processing i n m o d e r n communication systems
- bDescribe the differences between decimation and interpolation in MDSP
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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