Quadrature modulation

Quadrature modulation is the general technique of combining two amplitude-modulated (DSB) carrier signals in such a way that the original amplitude modulations are separable, by coherent demodulation, at the receiver. Examples include quadrature amplitude modulation, phase-shift keying, and minimum-shift keying. Constellation diagrams are used to examine the modulation in the 2-D signal space.

单词	Quadrature modulation
释义	Quadrature modulation 英语百科 Quadrature modulation Quadrature modulation is the general technique of combining two amplitude-modulated (DSB) carrier signals in such a way that the original amplitude modulations are separable, by coherent demodulation, at the receiver. Examples include quadrature amplitude modulation, phase-shift keying, and minimum-shift keying. Constellation diagrams are used to examine the modulation in the 2-D signal space.
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