digital data modulation system

digital data modulation system

[′dij·əd·əl ′dad·ə ‚mäj·ə′lā·shən ‚sis·təm]
(communications)
A digital communications system in which the information source consists of a finite number of discrete messages which are coded into a sequence of waveforms or symbols, each one selected from a specified and finite set.
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