QAM - Cam
《 Quadrature amplitude modulation 》A modulation method in which two waves with orthogonal phases are combined to create a carrier wave, and bit values are assigned by changing the amplitude. In digital data communications, there are 16QAM, 64QAM, 256QAM, etc. Increasing information density enables faster and more efficient data communications, but reduces noise resistance. Quadrature amplitude modulation. Quadrature amplitude modulation.QAM [quadrature amplitude modulation]QAM [quadrature amplitude modulation]Source: About Shogakukan Digital Daijisen Information | Legend |
《quadrature amplitude modulation》位相が直交する二つの波を合成して搬送波とし、振幅を変化させてビット値を割り当てる変調方式。デジタルデータ通信では16QAM、64QAM、256QAMなどがある。情報密度が高まることで、より高速で効率的なデータ通信が可能となるが、雑音耐性は低くなる。クアム。直交振幅変調。直角位相振幅変調。
クアム【QAM】［quadrature amplitude modulation］キュー‐エー‐エム【QAM】［quadrature amplitude modulation］出典 小学館デジタル大辞泉について 情報 | 凡例 |
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