# Signal & System Important Topics for GATE Exam

By BYJU'S Exam Prep

Updated on: September 25th, 2023

Signal & System Important Topics for GATE Exam: GATE 2024 would be an aim of many aspiring candidates preparing with full dedication and enthralled to crack GATE 2024 with a good score. It is essential to focus on important topics for each subject while preparing for GATE 2024 exam. Signals and Systems are important subjects for the GATE exam. It deals with the analysis, processing, and synthesis of signals, which can be in the form of sound, images, and electrical signals.

In this article, we provide the Signal & System Important topics for GATE exam that will be based on the previous year’s analysis and the expected pattern of questions that would be useful in preparing for GATE 2024 and aiming to obtain maximum marks out of Signal System.

## What are the Signal & System Important Topics for GATE Exam?

Based on the above analysis of previous GATE exam papers, it has been observed that not many questions were asked about this subject in the GATE exam. Therefore preparing the relevant topics from this subject would give an advantage over others. The most important topics in Signal System which may be expected for GATE 2024 are:-

• LTI Systems, Basics of signals and systems, Sampling.
• Representation of Discrete Signal Z-Transform.
• LTI system; Laplace transform Fourier series Fourier Transform.

## Importance of the Signal & System Important Topics for GATE Exam

Signal and System is an important subject for the GATE 2024 Exam, especially for candidates from the Electrical Engineering and Electronics and Communication Engineering disciplines. Some of the important topics in Signal and System for the GATE Exam are:

1. Continuous-time signals and systems: This includes topics such as Fourier series, Fourier transforms, Laplace transforms, and convolution.

2. Discrete-time signals and systems: This includes topics such as discrete-time Fourier series, discrete Fourier transform, Z-transform, and digital filters.

3. Sampling and reconstruction: This includes topics such as sampling theorem, reconstruction from samples, and quantization.

4. Linear time-invariant systems: This includes topics such as impulse response, transfer function, and frequency response.

5. State-space analysis: This includes topics such as state-space representation, controllability, and observability.

6. Signal processing: This includes topics such as filtering, modulation, and demodulation.

7. System analysis: This includes topics such as stability analysis, transient response, and frequency response analysis.

It is important to have a thorough understanding of these topics to excel in the Signal and System subject in the GATE Exam.

## Topics Asked in Previous Years of GATE EE and ECE Exam for Signal & System

Important topics asked in the previous years of the GATE exam are discussed below. It will help the candidates to understand the weightage of the subject for the upcoming GATE 2024 exam.

 GATE 2020 GATE 2020 GATE 2019 GATE 2018 GATE 2017 GATE 2016 Average Marks 10 7 4 9 5 6.5 Topic Covered Z-transform, RMS Average value, Properties of continuous-discrete LTI system, Laplace transform Z-transform, RMS Average value, Properties of continuous-discrete LTI system, Laplace transform Type of Filter, Linear Time-Invariant Systems, Fourier Series Expansion A sampling of Continous Signals, State Space Variable, Fourier Transform, Energy of Signals, LTI Signals Sampling, LTI System, Basics of Signal System Fourier Series, LTI System, Laplace Transform