Definitions for "Pulse Modulation"
Keywords:  amplitude, pdm, pam, modulation, pcm
The process of periodically or intermittently varying the amplitude of a pulse of light.
Method of varying the amplitude, frequency or phrase of information-bearing signals into a series of pulses. [Typical methods involve modifying the amplitude (PAM), width or duration (PDM) or position (PPM). The most common pulse modulation technique in telephone work is pulse code modulation (PCM).
A form of modulation in which one of the characteristics of a pulse train is varied.