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هوافضا::
مدولاسیون تربیعی دامنه
58.2.7 Quadrature Amplitude Modulation (QAM)..................................... 1423
Fig. 58.3 4-QAM and 16-QAM constellations
58.2.7 Quadrature Amplitude Modulation (QAM)
QAM is the one of the most common modulation schemes used for high-bandwidth
numerous cellular standards (HSPA+) are based on QAM.
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کامپیوتر و شبکه::
مدولاسیون دامنه چهارگانه
r Differential phase shift keying (DPSK), binary phase shift keying (BPSK), quadrature phase-shift keying (QPSK), quadrature amplitude modulation (QAM), and complementary code keying (CCK) modulation techniques.
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