double-polarity pulse-amplitude modulation
double-polarity pulse-amplitude modulation
[¦dəb·əl pə′lar·əd·ē ′pəls ¦am·plə‚tüd ‚mäj·ə′lā·shən] (communications)
Pulse-amplitude modulation employing pulses of positive and negative polarity, the average value being equal to zero. Also known as bidirectional pulse-amplitude modulation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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