IFF is an abbreviation of "identification friend or foe." It is a device that is used in combination with radar to identify targets. When a coded interrogation signal is sent from the ground device, the on-board response device sends back a coded signal corresponding to the interrogation, and the identification code is displayed next to the echo on the scope at the same time. The SIF (short for special identification of feature), which has been improved by increasing the number of pulse trains in the response signal and enabling the identification of nearly 500 different combinations, is now in practical use and is also used to identify civilian aircraft. → All-weather fighter Source : Heibonsha Encyclopedia About MyPedia Information |
identification friend or foeの訳。略してIFF。レーダーと組み合わせて目標を識別する装置で,地上装置から符号化した質問電波を発射すると,機上の応答装置は質問に応じた符号電波を打ち返してスコープ上のエコーのわきに識別符号を同時に表示する。応答信号のパルス列を増し,その組合せにより500近い識別が可能なように改良されたSIF(special identification of featureの略)も現在実用化,民間機の識別にも使用されている。→全天候戦闘機
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