3 Passband Digital Modulation with Focus on QAM
3.1 What You Will Learn
3.2 Passband Signals and the Rationale of QAM
3.3 QAM Represented with Real-Valued Signals
3.4 QAM Generation Using Complex-Valued Signals
3.5 QAM Demodulation Using Complex-Valued Signals
3.5.1 PAM-based detector scheme for square QAM
3.5.2 QAM demodulation of complex-valued signals with lowpass filter
3.5.3 Advanced: QAM demodulation of complex-valued signals via phase splitter
3.6 Quadrature (or IQ) Sampling
3.7 Baseband Representations of Signals and Passband Channels
3.8 Orthogonal Modulations and FSK
3.9 Applications
3.10 Comments and Further Reading
3.11 Exercises
3.2 Passband Signals and the Rationale of QAM
3.3 QAM Represented with Real-Valued Signals
3.4 QAM Generation Using Complex-Valued Signals
3.5 QAM Demodulation Using Complex-Valued Signals
3.5.1 PAM-based detector scheme for square QAM
3.5.2 QAM demodulation of complex-valued signals with lowpass filter
3.5.3 Advanced: QAM demodulation of complex-valued signals via phase splitter
3.6 Quadrature (or IQ) Sampling
3.7 Baseband Representations of Signals and Passband Channels
3.8 Orthogonal Modulations and FSK
3.9 Applications
3.10 Comments and Further Reading
3.11 Exercises