carrierless amplitude/phase
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carrierless amplitude/phase



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DEFINITION - Carrierless amplitude/phase (CAP) modulation was the original approach for modulation of a Digital Subscriber Line (DSL) signal. Discrete multitone (DMT) is now the preferred modulation alternative over CAP.

CAP is closely related to quadrature amplitude modulation (QAM).

LAST UPDATED: 06 Nov 2006

Read more about carrierless amplitude/phase:
- Analog Devices compares the relative merits of CAP and DMT.


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