Academic course in Digital Communications (Before mid-term)

1Introduction"Become Familiar with the course

Important basics to be remembered from previous Communication courses

Start with the first course topic

Lecture summary

Outlines for the coming lecture"

2Sampling Process "The Communication process

Elements of communication system

Modes of communication

Communication channel

Modulation process

Sampling Process in time domain & frequency domain

Pulse Amplitude Modulation (PAM)

Practical Sampling"

3Quantization"Definition

Types"

4PCM (Pulse Code Modulation)"Type of Modulation

Pulse Amplitude Modulation (PAM)

Pulse Code Modulation

The basic Elements of PCM system

Sampling

Quantization

Encoding

Line Code

Return The Signal To The Receiver"

5Delta modulation (DM)"Definition

Explanation

Equations

Design

Problems

Solution"

6Types of noise"Shot Noise

Thermal Noise

White Noise

Example

"