| dbo:abstract |
Directional Infrared Counter Measures (DIRCM) are a class of anti-missile systems produced to protect aircraft from infrared homing missiles, primarily MANPADS and similar simple systems. Earlier infrared countermeasures like flares or hot block systems that produce random flashes of IR light are semi- or omnidirectional. This results in the missile seeker receiving relatively little IR energy due to the inverse square law. DIRCM systems instead aim their IR output directly at the missile using some source of tracking information and a trainable emitter. This allows a relatively small device to overwhelm the missile seeker by focusing all of its output on it. Examples are produced by many aerospace companies, such as Leonardo S.p.A., Elbit Systems, Northrop Grumman, ITT Corporation, and BAE Systems. A Russian example is the 101KS-O. (en) Il Directional Infrared Counter Measures (DIRCM), contromisure direzionali agli infrarossi, è un sistema prodotto dalla Northrop Grumman e dalla BAE Systems, progettato per proteggere gli aerei dai missili terra-aria spalleggiabili a ricerca di calore. Si tratta di un sistema leggero e compatto nato per fornire maggior protezione agli aerei militari nel corso delle missioni, rispetto alle comuni minacce presenti sui campi di battaglia. Rappresenta una soluzione più sofisticata rispetto alle contromisure infrarosse convenzionali. DIRCM è diventato un termine usato come definizione generica dei sistemi di contromisure contro i sistemi d'arma all'infrarosso che agiscono localizzando la minaccia e dirigendogli energia contro. I missili contraerei portatili (MAN Portable Air Defense System, MANPADS - sistemi per la difesa aerea portabili da un uomo) come i FIM-92 Stinger e SA-7 Grail a guida all'infrarosso sono la principale minaccia nel volo a bassa quota.Gli aerei ed elicotteri da trasporto sono particolarmente vulnerabili per la loro limitata agilità.Sono un'arma adatta anche ad attacchi terroristici contro aerei in decollo ed atterraggio appostandosi presso gli aeroporti. I sistemi di difesa disponibili a bordo degli aerei ed elicotteri sono normalmente costituiti da un (MAW) che localizza il missile in partenza dalla componente ultravioletta della scia del motore e lanciatori di flare per confonderne i sensori. (it) 指向性赤外線対抗装置（しこうせいせきがいせんたいこうそうち 英語: Directional Infrared Counter Measures, DIRCM）は、赤外線誘導ミサイルから航空機を防御する装置の一つ。レオナルド S.p.A、エルビット・システムズ、ノースロップ・グラマン、ITT、およびBAEシステムズによって開発されたもので、光波妨害技術を利用して、航空機を一般的な戦場の脅威から保護するために設計された小型軽量なシステムであり、従来のよりも高度な対抗装置となる。 また「DIRCM」とは、Su-57に採用されている101KS-O赤外線対抗装置同様、赤外線を探知追跡し、その赤外線に対して直接レーザーを照射する赤外線対抗装置の総称としてとしても使用される。 (ja) |
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指向性赤外線対抗装置（しこうせいせきがいせんたいこうそうち 英語: Directional Infrared Counter Measures, DIRCM）は、赤外線誘導ミサイルから航空機を防御する装置の一つ。レオナルド S.p.A、エルビット・システムズ、ノースロップ・グラマン、ITT、およびBAEシステムズによって開発されたもので、光波妨害技術を利用して、航空機を一般的な戦場の脅威から保護するために設計された小型軽量なシステムであり、従来のよりも高度な対抗装置となる。 また「DIRCM」とは、Su-57に採用されている101KS-O赤外線対抗装置同様、赤外線を探知追跡し、その赤外線に対して直接レーザーを照射する赤外線対抗装置の総称としてとしても使用される。 (ja) Directional Infrared Counter Measures (DIRCM) are a class of anti-missile systems produced to protect aircraft from infrared homing missiles, primarily MANPADS and similar simple systems. Earlier infrared countermeasures like flares or hot block systems that produce random flashes of IR light are semi- or omnidirectional. This results in the missile seeker receiving relatively little IR energy due to the inverse square law. DIRCM systems instead aim their IR output directly at the missile using some source of tracking information and a trainable emitter. This allows a relatively small device to overwhelm the missile seeker by focusing all of its output on it. (en) Il Directional Infrared Counter Measures (DIRCM), contromisure direzionali agli infrarossi, è un sistema prodotto dalla Northrop Grumman e dalla BAE Systems, progettato per proteggere gli aerei dai missili terra-aria spalleggiabili a ricerca di calore. Si tratta di un sistema leggero e compatto nato per fornire maggior protezione agli aerei militari nel corso delle missioni, rispetto alle comuni minacce presenti sui campi di battaglia. Rappresenta una soluzione più sofisticata rispetto alle contromisure infrarosse convenzionali. (it) |
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Directional Infrared Counter Measures (en) Directional Infrared Counter Measures (it) 指向性赤外線妨害装置 (ja) |
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