Analog Communication

By Godse and Bakshi

Amplitude Modulation Introduction. Amplitude Modulation : Time-domain description, Frequency-domain description, Generation of AM wave : Square law modulator, Switching modulator. Detection of AM waves : Square law detector, Envelope detector. Double sideband suppressed carrier modulation (DSBSC) : Time-domain description. Frequency-domain representation. Generation of DSBSC waves : Balanced modulator, Ring modulator. Coherent detection of DSBSC modulated waves. Costas loop. Quadrature carrier multiplexing. Hilbert transform, Properties of Hilbert transform, Pre-envelope, Canonical representation of bandpass signals, Single sideband modulation, Frequency-domain description of SSB modulated signals, Frequency discrimination method for generating an SSB modulated wave, Time-domain description, Phase discrimination method for generating an SSB modulated wave, Demodulation of SSB wave. Vestigial sideband modulation, Frequency-domain description, Generation of VSB modulated wave, Time-domain description, Envelop detection of VSB wave plus carrier, Comparison of amplitude modulation techniques, Frequency translation, Frequency division multiplexing, Application : Radio broadcasting, AM radio, Television, Color television, High definition television.Angle Modulation Basic definitions, Frequency modulation, Narrow band frequency modulation, Wide band frequency modulation, Transmission bandwidth of FM waves, and many more...