一、概况红外热成象技术是一门有较长历史的技术,近年来它正在不断地发展。美国预警卫星对弹道导弹的侦察,在起始段上由于导弹尾焰目标大,辐射强,探测成象问题较少。例如,美国发射同步通讯卫星所用弹道导弹,其远地点发动机离地面36000公里时点火,燃烧19.9秒,排出尾焰K105公里,宽52.8公里,温度约2000°K,辐射强度10~6瓦/球面度(导弹本体强度为此值±1个数量),是热成象和跟踪的极好目标。但对中段导弹这样一个冷目标,探测跟踪就不那么容易,迄今尚未获得成功。早期装置有可能是扫描成象,近期则有可能采用空间分辨率很高的多元器件(1万～10万个元件的二维阵列)不扫 I. Overview Infrared thermal imaging technology is a long history of technology, in recent years it is constantly developing. The United States early warning satellites on the ballistic missile reconnaissance, in the beginning because of the tail of the missile target large, strong radiation, detection imaging less problems. For example, the United States launched a ballistic missile used in synchronous communications satellites and its apogee fired at a distance of 36,000 km from the ground and burned for 19.9 seconds, discharging a tail gas of K105 km and a width of 52.8 km at a temperature of about 2000 ° K and a radiation intensity of 10 to 6 W / (Missile body strength for this value ± 1 number), is an excellent target for thermal imaging and tracking. However, for such a cold target of mid-range missiles, exploration and tracking are not so easy and so far they have not been successful. Early devices may be scanning imaging, the recent may be the use of high spatial resolution of multi-component devices (10,000 ~ 100,000 elements of the two-dimensional array) does not sweep