What kind of modulation does this graph show? It is the modulation of a single sinusoidal message onto a single sinusoidal carrier waveform, using one of the modulation formats studied in depth in the lab sessions. Output waveform Amplitude (Vpp) 2 1.5 1 0.5 O -0.5 -1 -1.5 -2 0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.01 Time (s) Amplitude modulation (AM), modulation index 0.4 Amplitude modulation (AM), modulation index 0.8 Amplitude modulation (AM), modulation index 0.2 Dual side-band suppressed carrier (DSBSC) modulation