Solved question paper for SS May-2025 (B-TECH 4th)
Solved Question Paper
Signal and systems May-2025
PTU • B-TECH • Electronics and Communication Engineering • 4th • May-2025
signal and systems previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program in the Electronics and Communication Engineering stream, 4th semester. This section makes it easier to browse subject-wise old question papers for signal and systems, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for signal and systems question bank with answers while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.
These Questions are downloaded from www.brpaper.com. You can also download previous years question papers of 10th and 12th (PSEB & CBSE), B-Tech, Diploma, BBA, BCA, MBA, MCA, M-Tech, PGDCA, B-Com, BSc-IT, MSC-IT.
System and Signal Analysis :
Classification of signals and systems, signal representation using
fourier series, complex exponential fourier series, fourier series representation of periodic signals
speriodic signal representation using fourier transform, fourier transform of periodic power
signals, power spectral density, system response impulse, step and time domain response analysis,
transfer function and frequency, Domain analysis effect of Transfer function on spectral densities,
Stationary of non-Transients.
Random Signal Theory :
Introduction to probabilities Defination, probability of Random events,
Joint and conditional probability, probability Mass function statistical averages. Probability
density functions and statistical averages. Examples of P.D. function, transformation of random
variables random processes, stationary, true averages and Fygodic.
Signal Transmission Through Linear Networks :
Convolution theorem, its graphical
intrepretation. Conditional function with a unit Impulse function. The sampling theorem low pass
and band pass network, matched filter, input output relations with random inputs, envelope
detector, equivalent noise band width Noise. Introduction to thermal noise, shot noise partial
noise, low frequency or flicker, Gaussion Noise, burst noise, avalanche noise bipolar transistor
noise, F.E.T. noise, Equivalent input noise signal to noise ration, noise factor, amplifier input
noise in terms of F-Noise factor or amplifiers, Noise temperature, Noise equivalent Bandwidth,
Noise fig. Experimental determination of noise figure, Pulse response & Digital No. &
elimination..
Solved Questions
Solved-
Explain how aperiodic signals can be represented by fourier transform.Very Short Answer 2 Marks May-2025 • PTU B-TECH
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What is the use of Laplace transform?Very Short Answer 2 Marks May-2025 • PTU B-TECH
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What are the major classifications of the signal?Very Short Answer 2 Marks May-2025 • PTU B-TECH
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What are the properties of convolution?Very Short Answer 2 Marks May-2025 • PTU B-TECH
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What are the Conditions for a System to be LTI System?Very Short Answer 2 Marks May-2025 • PTU B-TECH
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Define time invariant and time varying systems.Very Short Answer 2 Marks May-2025 • PTU B-TECH
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Find the fourier transform of x(t) = sin(wt).Very Short Answer 2 Marks May-2025 • PTU B-TECH
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Give the statement of Parsevals theorem.Very Short Answer 2 Marks May-2025 • PTU B-TECH
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What do you mean by conditional probability?Very Short Answer 2 Marks May-2025 • PTU B-TECH
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Define Realizability.Very Short Answer 2 Marks May-2025 • PTU B-TECH
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Find the Fourier coefficients of x(t)=1+sin2ωt+2cos2ωt+cos(3αt+π/3).Long Answer 5 Marks May-2025 • PTU B-TECH
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State and prove convolution property of Laplace transform and then using this property, find Laplace transform ofLong Answer 5 Marks May-2025 • PTU B-TECH
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Find even and odd component of the following signals :Long Answer 5 Marks May-2025 • PTU B-TECH
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May 2025 Find even and odd component of the following signals :
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Find even and odd component of the following signals :Long Answer 5 Marks May-2025 • PTU B-TECH
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May 2025 Find even and odd component of the following signals :
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Discuss combinational probability and probability distribution function.Long Answer 5 Marks May-2025 • PTU B-TECH
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Obtain the trigonometric Fourier series for the half wave rectified sinewave.Long Answer 5 Marks May-2025 • PTU B-TECH
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What is the periodicity of x(t) = e^{j100πt} + 30° ?Long Answer 10 Marks May-2025 • PTU B-TECH
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Find the fundamental period of the signal x(n) = 3 e^{jπ(n+1/2)}Long Answer 10 Marks May-2025 • PTU B-TECH
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Is the system described by the equation y(t) = x(2t) Time invariant or not? Why?Long Answer 10 Marks May-2025 • PTU B-TECH
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What is the period T of the signal x(t) = 2cos(n/4)?Long Answer 10 Marks May-2025 • PTU B-TECH
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Find the Fourier Transform of Rectangular pulse. Sketch the signal and Fourier transform.Long Answer 10 Marks May-2025 • PTU B-TECH
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Find the inverse Laplace transform of given function by using convolution theorem (i) x(s)= 1/(s^2+a^2)^2Long Answer 10 Marks May-2025 • PTU B-TECH
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Find the inverse Laplace transform of given function by using convolution theorem (ii) x(s)= s/(s+1)(s+2)Long Answer 10 Marks May-2025 • PTU B-TECH
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FAQ
Frequently Asked Questions
Answers about this subject, solved papers, and preparation.
01 Where can I find signal and systems previous year question papers for Bachelor of Technology Electronics and Communication Engineering, 4th semester?
This page lists signal and systems question papers uploaded for Punjab Technical University Bachelor of Technology Electronics and Communication Engineering, 4th semester, organized for subject-wise browsing where available.
02 Are these official Punjab Technical University question papers?
BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.
03 How can previous year signal and systems papers help in exam preparation?
Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.
04 What kind of topics does signal and systems usually cover?
The question papers here relate to the official signal and systems syllabus set by the university for this course and semester.
05 Does this page include a signal and systems question bank with answers or solved answers?
This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.
06 Can I find papers for other subjects in the same Bachelor of Technology Electronics and Communication Engineering?
Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology Electronics and Communication Engineering.