略語大辞典 [C] 22 DPSH-IM direct phase shift and self-homodyne 直接位相シフトおよび自己ホモダイン変調. 光通信方式. direct phase shift and self-homodyne intensity modulation; in an optical communication; e.g. by Fujitsu; [C:Opt]. 丸善「略語大辞典」JLogosID : 11872383