Signals and Systems 2022 Question Paper — Government College of Engin…
The 2022 Signals and Systems previous year question paper (Government College of Engineering and Technology, Jammu), with every question and its marks.
- University: Government College of Engineering and Technology, Jammu
- Subject: Signals and Systems
- Course: SIGNALS AND SYSTEMS
- Branch: Electronics and Comm. Engg.
- Year: 2022
- Paper: end-term
- Duration: 180 minutes
- Total marks: 100
Instructions
- Attempt five questions in all, selecting at least two questions from each section.
- All questions carry equal marks.
Questions
Section A
selecting at least two questions from each section
- Q1. (a) Describe the following types of systems : (i) Static system and Dynamic system (ii) Linear system and Non-linear system. (b) Determine if the system described by the following input-output equations are casual or non-casual : (i) $y(n) = x(n) - x(n-1) - x(n-2)$ (ii) $y(n) = 3x(n) + x(n+4)$. Support your answer with reason. [20 marks]
- Q2. (a) Differentiate between even and odd signals, continuous and discrete signal, symmetrical and anti-symmetrical signals. (b) Explain periodic aperiodic signals. What is the condition for periodicity of a discrete time signal ? [20 marks]
- Q3. (a) Define the Fourier transform and inverse Fourier transform. (b) What are the conditions for the existence of Fourier transform ? [20 marks]
- Q4. (a) Elaborate the following properties of Fourier series : (i) Linearity (ii) Time shifting properly (iii) Time reversal (iv) Time scaling property. (b) Discuss Fourier series and Fourier spectrum. [20 marks]
Section B
selecting at least two questions from each section
- Q5. (a) Given a discrete time signal $x(n) = \delta(n)$ in fig. 1. Find its Discrete Time Fourier Transform. (b) Discuss linearity, convolution, scaling and multiplication in time domain properties of Discrete Time Fourier Transform. [20 marks]
- Q6. (a) Give significance of z-transform. What are its advantages ? (b) Determine the z-transform of unit step sequence $u(n)$ where $u(n) = 1$ for $n \ge 0$ $= 0$ otherwise [20 marks]
- Q7. (a) Determine z-transform of a discrete time signal represented as $x(n) = \cos w_0 n$ for $n \ge 0$. (b) Explain difference equation and differential equation. [20 marks]
- Q8. (a) Draw a feedback connection in discrete time LTI system. Determine the transfer function. (b) Write a note on Discrete Time Fourier Transform. [20 marks]
Related pages
Other years
- Signals and Systems 2022 question paper — end-term
- Signals and Systems 2022 question paper — end-term