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隐身距离受到一定限制。隐形飞机主要是对无线电波的隐形能力较强,对可见光波段,除了迷彩伪装外,没有其它比较有效的隐形措施 对于红外波段,虽然在发动机喷口上采取了措施,但要想彻底消除红外辐射是不可能的。因为任何一种物质,在高于绝对零摄氏度时都存在红外辐射,况且隐形飞机还要同空气摩擦发生热辐射。因此,在距高近到一定程度后,可以被光学、红外探测系统发现。
Stealth distance subject to certain restrictions. Invisible aircraft is mainly stealth radio waves on the strong, in the visible band, in addition to camouflage, there is no other more effective invisible measures for the infrared band, although the engine nozzle to take measures, but in order to completely eliminate the infrared radiation is impossible. Because of any substance, above zero absolute zero degrees Celsius there is infrared radiation, and the stealth aircraft with air friction heat radiation occurs. Therefore, it can be detected by optical and infrared detection systems after reaching a certain distance from high.