Definition of quadrature amplitude modulation in English:

quadrature amplitude modulation

noun

mass nounTelecommunications

A modulation system used in microwave and satellite communication, involving phase and amplitude modulation of a carrier wave.
〔电信〕正交调幅
Example sentencesExamples
- A quadrature amplitude modulation trellis coded modulation decoder for decoding a stream of QAM TCM signals is disclosed.
- To avoid these problems, HomePlug uses a robust orthogonal frequency division multiplexing scheme with 1,280 orthogonal quadrature amplitude modulation carriers.
- Because Ultraband utilizes ITU-grade QAM (quadrature amplitude modulation), it requires lower plant noise floors.
- An SCM modulator uses the digital component to create a low-order QAM (quadrature amplitude modulation) symbol.

Definition of quadrature amplitude modulation in US English:

quadrature amplitude modulation

noun

Telecommunications

A modulation system used in microwave and satellite communication, involving phase and amplitude modulation of a carrier wave.
〔电信〕正交调幅
Example sentencesExamples
- To avoid these problems, HomePlug uses a robust orthogonal frequency division multiplexing scheme with 1,280 orthogonal quadrature amplitude modulation carriers.
- A quadrature amplitude modulation trellis coded modulation decoder for decoding a stream of QAM TCM signals is disclosed.
- Because Ultraband utilizes ITU-grade QAM (quadrature amplitude modulation), it requires lower plant noise floors.
- An SCM modulator uses the digital component to create a low-order QAM (quadrature amplitude modulation) symbol.

单词	quadrature amplitude modulation
释义	Definition of quadrature amplitude modulation in English: quadrature amplitude modulation noun mass nounTelecommunications A modulation system used in microwave and satellite communication, involving phase and amplitude modulation of a carrier wave. 〔电信〕正交调幅 Example sentencesExamples A quadrature amplitude modulation trellis coded modulation decoder for decoding a stream of QAM TCM signals is disclosed. To avoid these problems, HomePlug uses a robust orthogonal frequency division multiplexing scheme with 1,280 orthogonal quadrature amplitude modulation carriers. Because Ultraband utilizes ITU-grade QAM (quadrature amplitude modulation), it requires lower plant noise floors. An SCM modulator uses the digital component to create a low-order QAM (quadrature amplitude modulation) symbol. Definition of quadrature amplitude modulation in US English: quadrature amplitude modulation noun Telecommunications A modulation system used in microwave and satellite communication, involving phase and amplitude modulation of a carrier wave. 〔电信〕正交调幅 Example sentencesExamples To avoid these problems, HomePlug uses a robust orthogonal frequency division multiplexing scheme with 1,280 orthogonal quadrature amplitude modulation carriers. A quadrature amplitude modulation trellis coded modulation decoder for decoding a stream of QAM TCM signals is disclosed. Because Ultraband utilizes ITU-grade QAM (quadrature amplitude modulation), it requires lower plant noise floors. An SCM modulator uses the digital component to create a low-order QAM (quadrature amplitude modulation) symbol.
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