Line Coding - Simulation Tutorial
In this video, we explore Line Coding techniques used in Digital Communication systems and analyze their waveforms and Power Spectral Density (PSD) using an interactive simulation. Line coding is an essential process that converts binary data into electrical signals suitable for transmission through communication channels.
This virtual laboratory demonstrates how different line coding schemes represent binary data and how their spectral properties affect bandwidth, synchronization, and DC components.
🔬 Topics Covered
• Introduction to Line Coding in Digital Communication
• Generation of Input Binary Sequences
• Visualization of Line Coded Waveforms
• Analysis of Power Spectral Density (PSD)
• Comparison of different coding schemes
📊 Line Coding Schemes Demonstrated
Unipolar NRZ
Unipolar RZ
Polar NRZ-L
Polar NRZ-I
Polar RZ
Manchester Coding
Differential Manchester
AMI (Alternate Mark Inversion)
Pseudoternary
HDB3 Scrambling
B8ZS Scrambling
Duobinary and Modified Duobinary
⚡ Key Learning Outcomes
✔ Understand how binary data is converted into transmission signals
✔ Observe waveform differences between coding techniques
✔ Compare spectral characteristics using PSD plots
✔ Study synchronization, DC components, and bandwidth requirements
This experiment is useful for students studying Digital Communication, Data Communication, Computer Networks, and Electronics & Communication Engineering (ECE).