略語大辞典 [C] 20 DQPSK differential quadrature phase shift keying 差動四相位相シフト キーイング. ディジタル通信方式の一つ. 自動車電話の通信方式.differential quadrature phase shift keying; a digital communication system; e.g. π/4 DQPSK; a modification of QPSK(quadrature phase shift keying); this format has four potential phase states, which require two 丸善「略語大辞典」JLogosID : 11872408