In this video, what is modulation, why the modulation is required in communication and different types of modulation schemes are explained briefly.
By watching this video, you will learn the following topics:
0:00 Chapters
0:28 What is Modulation?
2:06 Why Modulation is Required?
5:06 Types of Modulation
6:00 Continuous-wave modulation (AM, FM, PM)
7:18 Pulse Modulation (PAM, PWM, PPM, PCM)
10:05 Digital Modulation (ASK, FSK, PSK)
What is Modulation?
Modulation is the process where one of the properties of the periodic signal (the carrier wave) like amplitude, phase or the frequency is altered according to the message signal (Baseband signal).
Why Modulation is Required in Communication
1) Ease of Radiation (To reduce the antenna size)
2) To reduce the interference
3) To allow the multiplexing of the different signals
Types of Modulation
1) Analog Modulation (Message signal is analog in nature)
2) Digital Modulation (Message signal is digital)
Analog Modulation can be further classified as
1) Continuous-wave modulation
Amplitude Modulation (AM)
Frequency Modulation (FM)
Phase Modulation (PM)
2) Pulse Modulation
Pulse Amplitude Modulation (PAM)
Pulse Width Modulation (PWM)
Pulse Position Modulation (PPM)
Pulse Code Modulation (PCM)
Mainly there are three types of Digital Modulation
1) Amplitude Shift Keying (ASK)
2) Frequency Shift Keying (FSK)
3) Phase Shift Keying (PSK)
This video will be helpful to everyone in understanding what is modulation, why it is used, and what are the different types of modulation schemes.
#modulation
#TypesOfModulation
#AnalogAndDigitalCommunication
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