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Faculty of GATE. Top Educator - GATE (Engineering Mathematics). 

Sanjay Yadav

In this course you will understand all the aspects of Analog communication from basic to moderate and finally we will be expert after completing this course. In this course you will understand the following topics : 
1. Amplitude Modulation and Demodulation
2. Angle Modulation and Demodulation
3. Spectra of AM and FM
4. Superheterodyne Receivers, Circuits for Analog Communication
5. Random Processes : Autocorrelation and power spectral density
6. Properties of white noise, filtering of random signals through LTI systems
7. Information theory : entropy, mutual information and channel capacity theorem

GATE (Graduate Aptitude Test in Engineering) 2020 & 2021 complete preparation with best educators. Know about the detailed syllabus, best books, exam pattern and dates, previous year question papers a

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English

Analog Communication for GATE

Random Variables & Noise

Communications

GATE & ESE - EE, EC

GATE, ESE and IIT-JAM

Ace the toughest competitive and government exams in India 

Test Preparation

This lesson give an basic overview of Analog communication, what are the different lesson that we are going to cover during this course. What should be our strategy for preparing this subject considering the GATE curriculum.

Overivew of the Analog Communication

In this lesson basic Introduction to Analog communication is described. After watching the lesson you can able to learn the elements of communication system. You can also understand the concept why do we need modulation. At the end of lessons there is a practice set of questions as well which you can practice after learning the lesson

Introduction to Analog Communication

In this lesson we will able to understand the concept of Amplitude modulation, time domain expression of an Amplitude modulated signal. Concept of Singletone and multitone Modulation throughly  explained. Concept of modulation index is also covered. Bandwidth of an Amplitude modulated signal and frequency domain expression of Amplitude modulated signal is also described.

Concept of Amplitude Modulation

In this lesson you will understand how the power is getting calculated for an Amplitude Modulated Signal. Concept of Modulation Efficiency is very well described.At the end of the lesson practice questions are also provided to revise the concept

Amplitude Modulation | Power Calculation

In this lesson we will learn the basic understanding the general of Amplitude Modulated Signal. We will able to understand the concept of Square Law Modulator and its properties in very detailed way. At the end of the lesson we have solved the practice problem as well to revise our concept.

Square Law Modulator

In this lesson we will understand the concept of an Switching Modulator Circuit, how we can generate an Amplitude Modulated Signal using the switching Modulator.

Switching Modualator

In this lesson we will understand the concept of Demodulation of AM modulated signal, concept of synchronous detector, how the frequency and phase synchronisation is achieved in case of synchronous detector. Concept of Quadrature Null Effect is also covered in this lesson.

Synchronous Detector

In this lesson we will understand the concept of Square Law detector as a demodulation technique of Amplitude Modulated Signal. We will understand how the signals to noise ratio is achieved in case of square law detection, how the value of Modulation index affects the entire demodulation process.

Square Law Detector | Synchronous Detector

In this lesson we will understand the concept of Envelope Detector, how the envelope detector assist to demodulate the modulated signal. We will also understand the envelope detector circuit and the role of resistance and capacitor. At the end of the lesson we will understand the concept of Diagonal Clipping and criteria to avoided the diagonal clipping.

Demodulation of AM | Envelope Detector

Here as a Teacher and Learner on Unacademy Family

Bharath S

This course covers the topics and numerical related to Information Theory. The course will be beneficial for GATE aspirants.

Information Theory - GATE (ECE)

ISRO , SCIENTIST/ENGINEER
(AIR-8)  ISRO,  E & T Engineer,
 Always remember you are different from others( If u Think u Can )

Rahul Pathak

This course will  explain probability of error in digital communication with concept of random variable and random process.
which will help Electronics and electrical student in competitive exam and engineering curriculum.

(Hindi) Probability of Errors and Random Variables: GATE

I am an Electronics engineer.Passionate to share my knowledge to students who actually need it.In my subject u definitely go well.

Vaibhav Goel

We will discuss all the theory plus questions important for GATE 2020 and ESE 2020. 
This will cover random process first followed by random variable.
Now I assure that this after watching this you have much confidence in this topic as before

(Hindi) Communication Random Variable and Random Processes Course : GATE (ECE)

Unless you dive into the depth of the most difficult problem, you can't turn impossible into possible. 

Himanshu Sen

This course deals with basic concepts related to probability and also it discusses about the random variable and random process and some important numericals.

Probability or Stochaistic Process

B.Tech. graduate from ECE with First Division Honours. Engineer by profession Educator by passion. My Motive is to 'Grow & Learn' always.

Indu Yadav

This course contains proper explanation of probability, random process and Random variable for the analysis of signal in communication which are unpredictable in nature.

Probability and Random Processes

In this course is about complete digital communication and the topics which covered are 

 Sampling theorem,
Modulation,
PCM and it's noises,
 DPCM and DM,
Bandwidth ,
digital carrier schemes,
constellation diagrams,
summary.This Course is beneficial for  GATE (ECE) aspirants.

Lessons

9 lessons • 1h 43m

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Overivew of the Analog Communication

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Introduction to Analog Communication

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Concept of Amplitude Modulation

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Amplitude Modulation | Power Calculation

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Square Law Modulator

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Switching Modualator

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Synchronous Detector

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Square Law Detector | Synchronous Detector

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Demodulation of AM | Envelope Detector