略語大辞典 [MIL] 27 IFM instantaneous frequency measurement ジタル周波数ディスクリミネータ(DFD)ともいう.instantaneous frequency measurement (receiver); a high probability of intercept device suited for pulsed environment; includes an A/D(analog-to-digital) converter; or DFD(digital frequency discriminator); an EW(electronic-warf 丸善「略語大辞典」JLogosID : 11878186