quadrature modulation
Also found in: Acronyms.
quadrature modulation
[′kwä·drə·chər ‚mäj·ə′lā·shən] (communications)
Modulation of two carrier components 90° apart in phase by separate modulating functions.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.