Chapter 2 Continuous-Wave Modulation “Analog Modulation” is the subject concerned in this chapter.
2.1 Introduction Analog communication system The most common carrier is the sinusoidal wave. (Analog) Carrier wave
2.1 Introduction Modulation A process by which some characteristic of a carrier is varied in accordance with a modulating wave (baseband signal). Sinusoidal Continuous-Wave (CW) modulation Amplitude modulation Angle modulation
Sinusoidal carrier 2.1 Introduction Baseband signal Amplitude Modulation Frequency Modulation