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Communication Research Center
Chapter 3
Digital modulation scheme

2.

Introduction
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Introduction
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Introduction
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Introduction
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3.1 PAM Modulation(ASK for digitalization)
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3.1 PAM Modulation(ASK for digitalization)
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3.1 PAM Modulation(ASK for digitalization)
Carrier Modulated bandpass PAM
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3.2 Phase Modulation(PSK)
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3.2 Phase Modulation(PSK)
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3.2 Phase Modulation(PSK)
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3.2 Phase Modulation(PSK)
Signal Space for BPSK QPSK and 8-PSK
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3.3 Frequency Modulation(FSK)
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3.3 Frequency Modulation(FSK)
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3.3 Frequency Modulation(FSK)
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3.3 Frequency Modulation(FSK)
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3.3 Frequency Modulation(FSK)
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3.3 Frequency Modulation(FSK)
Phase trajectories for binary CPFSK
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3.3 Frequency Modulation(FSK)
GMSK pulse and power spectrum density
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3.4 M-ary Modulation Techniques
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3.4 M-ary Modulation Techniques
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3.4 M-ary Modulation Techniques
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3.4.1 QPSK
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3.4.1 QPSK
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3.4.1 QPSK
transmitter
receiver
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3.4.2 OQPSK
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3.4.2 OQPSK
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3.4.3 π/4-QPSK
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3.4.3 π/4-QPSK
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3.4.4 OQPSK and QPSK comparison
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3.4.4 OQPSK and QPSK comparison
Waveform under Non-tight filter
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3.4.4 OQPSK and QPSK comparison
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3.4.4 OQPSK and QPSK comparison
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3.4.4 OQPSK and QPSK comparison
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3.4.5 MSK and QPSK OQPSK comparison
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3.4.5 MSK and QPSK OQPSK comparison
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3.4.5 MSK and QPSK OQPSK comparison
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3.4.6 power spectrum
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3.4.7 M-ary QAM
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3.4.7 M-ary QAM
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3.5 Practical examples of Modulation Formats
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The End
Q&A