China has an infrared early warning satellite. The research of space-based infrared strategic missile early warning is to use infrared and optical signals to generate the three-dimensional shape of the target including space state information through mathematical modeling, which can automatically identify whether the target is a space satellite, debris or an enemy strategic missile. This is the most difficult subject in the world. Strategic missile early warning is a matter of time, only a minute or two, which belongs to the international frontier technology.
Missile early warning satellite
The missile early warning satellite consists of several satellites. The infrared detector on the satellite is used to detect the infrared radiation of the engine tail flame after the missile flies out of the atmosphere, and the TV camera is used to track the missile, identify the missile in time and give an alarm.