Signal System (BEC403) - AKTU Question Paper 2023-24
B.Tech · Semester 4 · Free PDF Download
This is the official AKTU Signal System Previous Year Question Paper for B.Tech Semester 4, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.
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Questions Asked in 2023-24
Signal System (BEC403) — complete question paper · 70 marks · 3 Hours
- aDetermine the fundamental period of the signal x(t)= sin(4t-1). 2
- bWrite the general formula for calculating Convolution in Conti nuous Time Domain. 2
- cFind the Fourier Transform of continuous time signal x(t) = δ(t + 1). 2
- dCalculate the Z-Transform of discrete time signal x(n)= δ(n + 1). 2
- eSketch the Sampled Signal of x(t)=cos(2πt). 2
- fSketch the continuous time signal x(t)=u(-t+1). 2
- gWhat is Parseval's Theorem? 2
- aDefine the following terms relate d to system with mathematical expressions (i) Linear System (ii) Stability (iii) Causality and (iv) Dynamic system
- bA causal LTI system is descr ibed by difference equation. Find the system function H(z)=Y(z)/X(z) for this system. Plot the pole-zero plot of H(z) and indicate the region of convergence
- cSketch the signal y(t)=e-a|t| & find the Fourier Transform of this same signal with Magnitude & Phase Curve
- dWhat is ROC? Discuss any three properties of Z-Transform wit h mathematical expressions and example
- eDescribe Natural Sampling pr ocess with graphs and mathematical equations. 7
- aDefine Time Invariant system. Also check whether the given s ystem is Time Variant or Invariant system (i) y1(t)=tx(t), (ii) y2(n)= 2x(n)+3, (iii) y3(t)= 2x(-t)
- bDefine the following with mathematical expressions and examp les (i) Energy & Power Signals, (ii) Even & odd Signals
- aWhat is Discrete Time Convolution? Find the convolution y(n) = x(n)*h(n) of the discrete time signals x(n)=h(n)=u(n)
- bWhat is LTI System? An LTI s ystem is described by differenti al equation Calculate (i) Transfer Function, H(s)=Y(s)/X(s). (ii) Output, y(t) when x(t)=u(t)
- aWrite any three properties of Fourier Transform. Find the Fo urier Transform of the given signal using Properties y(t)=te-4tu(t)
- bDetermine the Inverse Laplace transform of the following fun ctions using Partial Fraction method
- aDetermine the Inverse Z-Transform y(n) of the following functio ns 𝒀ሺ𝒛ሻ ൌ given ROC |z|>2
- bDetermine the z-transform of x(n) = (1/2)n u(n) and depict the ROC and the location of poles and zeros in the z plane
- aExplain Ideal Sampling with time domain & frequency domain g raphs and mathematical equations
- bWhat is Nyquist Rate & Nyquist Interval? Calculate the Nyquist rate & Nyquist Interval for the following continuous-time sinusoidal signals (i) x1(t)=cos(20πt)+ cos(40πt). and (ii) x2(t)=cos(200πt)cos(400πt)
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.
Repeated Questions — BEC403
Questions that appeared in more than one session, found by comparing 3 years of Signal System papers (2023-24, 2024-25, 2025-26)
Determine the Inverse Laplace transform of the following fun ctions using Partial Fraction method
Appeared in: 2023-24 · 2024-25
Determine the Inverse Z-Transform y(n) of the following functio ns 𝒀ሺ𝒛ሻ ൌ given ROC |z|>2
Appeared in: 2023-24 · 2024-25
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