Modulation in Communication System for RF Engineers RAHRF152

This course provides a second certificate completion for FREE from Rahsoft

Introduction to Modulation in Communication Systems RAHRF152 is an intro course of Rahsoft Radio Frequency Certificate and it is counted toward the certificate. In this course we have concentrated to simplify the Digital and Analog Modulation topics in a way which students would understand the practicality by providing examples and simulations using GNU Octave open source software. This is a great course to understand the fundamental definitions needed in digital and analog modulation in communication system.

General Consideration of Modulation

• 2. 1.1-Why we need modulation ?
• 3. 1.2 – Baseband and Passband ? What is Demodulation?
• 4. 1.3 – Career and Generic Communication System
• 5. 1.4-Modulation Aspects:Detectability,Bandwidth & Power Efficiency,Bit Error Rate

Analog Modulation

• 6. 2.1 - Amplitude Modulation , AM, Amplitude Demodulation, AM Applications
• 7. How to install GNU Octave Open Source Software Used in this course
• 8. 2.2.1 - Frequency Modulation, FM, Spectrum, FM Specs, High Index
• 9. 2.2.2- FM Demodulation , Slope Detector , FM Pros and Cons
• 10. 2.3- Phase Modulation, PM , FM vs PM , PM Demodulation

Digital Modulation

• 11. Bit Rate , Baud Rate , Binary & M-ary Data, Nyquest Formula , Channel Capacity
• 12. 3.1.1- Amplitude Shift Keying , ASK, Spectral Response Binary Data, B-ASK M-ASK
• 13. 3.1.2- Software Example
• 14. 3.1.3- ASK Demodulation
• 15. 3.2.1-Frequency Shift Keying, FSK Modulator & Demodulator, Demodulation with PLL
• 16. 3.2.2- Software Example
• 17. 3.3.0- Phase Shift Keying (PSK) , BPSK, PSK Modulation
• 18. 3.3.1- PSK Demodulation , PSK Demodulator, mismatch,Costas loop
• 19. 4.1- Inter symbol interference (ISI)
• 20. 4.2- Solving Inter symbol interference (ISI)
• 21. 5.1- Signal Constellation, PSK and FSK Modulation Constellation
• 22. 6.1- Quadrature modulation, I & Q , Adding Quadrature Signals and Simulation
• 23. 6.2.0- QPSK or 4-PSK Modulation
• 24. 5.6.2.1- Software Simulation
• 25. 6.3.0- QPSK Features , Diagrams , Signal Constellation, Demodulation BER
• 26. 6.3.1- I-Q Mismatch
• 27. 6.3.2- Large Phase Change, QPSK Drawbacks , pi/4 QPSK , OQPSK