A method of sending information by modifying (modulating) the difference in phase (fraction of a wave length) between a signal and a reference.

(radio) A method of sending information by modifying (modulating) the intensity (amplitude) of a carrier wave.

(sound, radio) the use of a modulating wave to vary the instantaneous frequency of a carrier wave

Any of a number of techniques whereby a series of information-carrying quantities occurring at discrete instances of time is encoded into a corresponding series of electromagnetic carrier pulses.

A device for the pulse modulation of a radio-frequency carrier signal

an electronic circuit that causes the phase angle of a modulated wave to vary in accordance with the modulating signal

(algebra) A module that has a basis. Equivalently, a module consisting of n-tuples of ring elements with no extra identities. (Then the number n is said to be its rank.) Equivalently, a direct sum whose summands are all the same ring. (The quantity of summands may be more than two.)

plural of R-module

plural of phase modulator

plural of pulse modulation