amplitude modulation
in amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to the waveform being transmitted
double-sideband suppressed-carrier transmission
transmission in which frequencies produced by amplitude modulation are symmetrically spaced above and below the carrier frequency and the carrier level is reduced to the lowest practical level
amplitude-shift keying
Type of Data Encoding
single-sideband modulation
refinement of amplitude modulation