White, Stanley A. Signal Processing and Controls Engineering, San Clemente, California.
- Pulse-amplitude modulation
- Phase modulator
- Pulse-width modulation
- Pulse-position modulation
- Pulse-density modulation
- Pulse-code modulation
- Delta modulation (DM) or delta PCM (DPCM)
- Adaptive delta modulation
- Differential PCM
- Adaptive differential PCM (ADPCM)
- Quadrature amplitude modulation (QAM)
- Links to Primary Literature
- Additional Readings
A device that converts an analog information signal to a pulse format. A pulse modulator encodes the amplitude information at a particular time by a set of short- or long-duration pulses using such methods as pulse-amplitude, pulse-width, pulse-position, pulse-density, or pulse-code modulation. A pulse modulator, therefore, accepts a continuous analog input signal and provides a pulse output that conveys the amplitude of the continuous analog signal as seen at an observation, or sampling, time ts, often optimistically described as a sampling instant.
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