The process of varying the AMPLITUDE of a sound, often periodically. An example of AM is the violinist's TREMOLO, where the amplitude of the vibrating string is rapidly altered by a movement of the ...

Having studied the case of two-level amplitude modulation, we next investigate the accuracy of CNN-based demodulation for data encoded via four-level amplitude-modulation.

Frequency Modulation (FM) The process of varying the frequency of a signal, often periodic ally. An example of FM is the violinist's vibrato, where the length of a string (and therefore the resulting ...