IT404 Unit 1
Analog & Digital Communication

Signals & Systems

Unit 1 Study Material

Download detailed notes, important questions and PYQ analysis for IT404 Analog & Digital Communication Unit 1.

📡 Signals

Continuous, discrete, analog and digital signals used in communication systems.

🌐 Communication System

Transmission of information from sender to receiver through a communication channel.

📈 Fourier Transform

Converts signals from time domain representation to frequency domain representation.

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Detailed Notes

Complete notes on Signals and Systems, Signal Classification, Standard Signals, System Classification, Fourier Transform, Convolution and Frequency Domain Analysis.

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Important Questions

Important RGPV questions on communication system, signals, systems, Fourier transform, convolution and signal analysis.

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PYQ Analysis

Previous year questions and repeated topics from Analog & Digital Communication Unit 1 for fast exam revision.

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Unit 1 Topics

Block Diagram of Communication System
Signal Definition
Continuous Signals
Discrete Signals
Deterministic Signals
Non-Deterministic Signals
Periodic Signals
Non-Periodic Signals
Energy Signals
Power Signals
Analog Signals
Digital Signals
Electromagnetic Spectrum
DC Signal
Sinusoidal Signal
Unit Step Signal
Ramp Signal
Signum Signal
Rectangular Pulse
Impulse Delta Signal
System Definition
Linear System
Nonlinear System
Time Variant System
Time Invariant System
Causal System
Non-Causal System
Stable System
Unstable System
Time Domain Representation
Frequency Domain Representation
Fourier Transform
Properties of Fourier Transform
Conditions for Existence of Fourier Transform
Fourier Transform of Gate Signal
Fourier Transform of Unit Step Signal
Fourier Transform of Constant Signal
Fourier Transform of Impulse Signal
Fourier Transform of Sine Wave
Fourier Transform of Cosine Wave
Shifting Property of Delta Function
Convolution
Time Convolution Theorem
Frequency Convolution Theorem