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Introduction 0/2
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RAHRF152 Before We StartLecture1.1
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5.0.1 Introduction 01 minLecture1.2
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5.0.2 Logo 01 minLecture1.3
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General Consideration of Modulation 0/2
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5.1.1- Why we need modulation ? 14 minLecture2.1
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5.1.2 – Baseband and Passband ? What is Demodulation? 11 minLecture2.2
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5.1.3 – Carrier and Generic Communication System 06 minLecture2.3
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5.1.4-Modulation Aspects: Detectability, Bandwidth & Power Efficiency,Bit Error Rate 26 minLecture2.4
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Analog Modulation 0/4
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5.2.1 – Amplitude Modulation , AM, Amplitude Demodulation, AM Applications 17 minLecture3.1
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5.2.1.1 – How to install GNU Octave Open Source Software Used in this course 01 minLecture3.2
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5.2.2.1 – Frequency Modulation, FM, Spectrum, FM Specs, High Index 22 minLecture3.3
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5.2.2.2- FM Demodulation , Slope Detector , FM Pros and Cons 12 minLecture3.4
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5.2.3- Phase Modulation, PM , FM vs PM , PM Demodulation 19 minLecture3.5
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5.3.0.0-Bit Rate , Baud Rate,Binary & M-ary Data, Nyquest Formula,Channel Capacity 22 minLecture4.1
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5.3.1.1- Amplitude Shift Keying , ASK, Spectral Response Binary Data, B-ASK M-ASK 21 minLecture4.2
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5.3.1.2- Software Example 04 minLecture4.3
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5.3.1.3- ASK Demodulation 08 minLecture4.4
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5.3.2.1-Frequency Shift Keying, FSK Modulator & Demodulator, Demodulation with PLL 16 minLecture4.5
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5.3.2.2- Software Example 02 minLecture4.6
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5.3.3.0- Phase Shift Keying (PSK) , BPSK, PSK Modulation, 09 minLecture4.7
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5.3.3.1- PSK Demodulation , PSK Demodulator, mismatch,Costas loop 15 minLecture4.8
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5.4.1- Inter symbol interference (ISI) 15 minLecture4.9
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5.4.2- Solving Inter symbol interference (ISI) 08 minLecture4.10
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5.5.1- Signal Constellation, PSK and FSK Modulation Constellation 08 minLecture4.11
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5.6.1- Quadrature modulation, I & Q , Adding Quadrature Signals and Simulation 14 minLecture4.12
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5.6.2.0- QPSK or 4-PSK Modulation 18 minLecture4.13
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5.6.2.1- S/P Converter 06 minLecture4.14
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5.6.2.2- Software Simulation 05 minLecture4.15
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5.6.3.0- QPSK Features , Diagrams , Signal Constellation, Demodulation BER 11 minLecture4.16
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5.6.3.1- I-Q Mismatch 21 minLecture4.17
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5.6.3.2- Large Phase Change, QPSK Drawbacks , pi/4 QPSK , OQPSK 13 minLecture4.18
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5.6.3.3-8-PSK 13 minLecture4.19
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5.7.1.0 – QAM 20 minLecture4.20
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2 Comments
How do we produce +1 and -1 voltages?
you can use analog comparator with VDD=+1 and VSS=-1 then reference voltage of vref=0.5
when your input is 0 and less than 0.5 comparator output will become -1 and when it is 1 which is higher than 0.5, output will be +1.