一、问题的提出在早期的红外导弹上,多数采用硫化铅作探测器。此类探测器的工作波段在3μm以下,主要用于探测温度较高的发动机喷口、排气管或烟囱辐射的红外线。但是,探测飞机发动机喷口辐射的红外线的导弹,只能从目标后半球的一个角度范围内(通常不大于60°)进行攻击;对以舰船烟囱或直升机排气管为目标的红外导弹,当烟囱或排气管采用绝热覆盖层或热屏蔽套后,也就难以攻击目标了。六十年代越南战场上使用了苏制SAM-7导弹攻击美国的 First, the issue put forward In the early infrared missiles, the majority of lead sulfide detector. Such detectors work in the band below 3μm, mainly used to detect the temperature of the engine nozzle, exhaust pipe or chimney radiation infrared. However, missiles that detect infrared radiation radiated from aircraft engine vents can only attack from an angle in the rear hemisphere (usually not greater than 60 °); for infrared missiles targeting ship chimneys or helicopter exhaust pipes, when After the chimney or exhaust pipe is insulated or heat-shielded, it is difficult to attack the target. In the 1960s, Soviet-made SAM-7 missiles were used to attack the United States in Vietnam’s battlefield