Aircraft decoy arrangement

F - Mech Eng,Light,Heat,Weapons – 41 – J

Patent

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F41J 2/00 (2006.01) F41J 9/08 (2006.01) F41J 9/10 (2006.01)

Patent

CA 2723920

Aircraft decoy arrangement and method for generating a decoy signal from an aircraft having an isolated decoy. An aircraft receiver detects a threat signal from a threat source targeting the aircraft. An aircraft signal processor produces a decoy re-lay signal based on the threat signal, where the decoy relay signal frequency is significantly lower than the threat signal frequency and is slowly attenuated through air, the signal processor calibrating the decoy relay signal in accordance with a received test sig-nal to compensate for inaccuracies. An aircraft transmitter transmits the decoy relay signal and an optional reference signal to the decoy, where it is received by a decoy receiver, converted back to a decoy signal by a decoy frequency converter, and transmitted by a decoy transmitter, causing the threat source to detect the decoy signal and lock onto the decoy rather than the aircraft. Image

L'invention porte sur un dispositif de leurre pour avion et sur un procédé permettant la génération dun signal de leurre par un avion muni dun leurre isolé. Le procédé consiste à ce quun récepteur d'avion détecte un signal de menace provenant d'une source de menace visant l'avion; en fonction du signal de menace, un processeur de signal d'avion produit un signal de relais de leurre lentement atténuée par l'air et dont la fréquence est significativement inférieure à la fréquence du signal de menace; selon un signal test reçu, le processeur de signal calibre le signal de relais de leurre pour compenser les imprécisions; un émetteur d'avion émet le signal de relais de leurre et, facultativement, un signal de référence vers le leurre; le récepteur de leurre reçoit le signal de relai de leurre; un convertisseur de fréquence de leurre le reconvertit en un signal de leurre; enfin un émetteur de leurre émet le signal de leurre, ce qui permet à la source de menace de détecter le signal de leurre et de se verrouiller sur le leurre plutôt que sur l'avion.

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