pulse-duration modulation

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pulse-duration modulation [′pəls du̇¦rā·shən ‚mäj·ə‚lā·shən]

(communications)

Modulation of a pulse carrier wherein the value of each instantaneous sample of a modulating wave produces a pulse of proportional duration by varying the leading, trailing, or both edges of a pulse. Abbreviated PDM. Also known as pulse-length modulation; pulse-width modulation.

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