In recent years, infrared and multi-spectrum optical payload technology was making rapid progress in China, and was widely applied in meteorological satellite , oceansat and airborne remote sensing system, etc . Several such typical earth observation systems and corresponding infrared sensors are introduced in this paper.
1.Multi-channel Radiometer loaded on FY-2 geo-stationary meteorological satellite, has 5 bands multi-spectrum scanning radiometer consisted of one visual panchromatic band, two middle-infrared bands and two thermal infrared bands, which was launched in 2004. The ground resolution of visual band is 1.25km, and 5km for infrared;
2. 10 bands Ocean Color and Temperature Scanner (OCTS) loaded on HY-1 sun-synchronous orbit oceansat is a typical ocean observation purpose payload consisted of 8 VIS-NIR bands and 2 IR bands launched in 2002. The ground resolution is 1.1Km;
3. Airborne 128 bands operational modular image spectrometer (OMIS) is applied in 2000 consisted 64 VIS-NIR bands, 48 SIR bands, 8 MIR bands and 8 TIR bands. The FOV (Field of View) of system is 70 degree, and the IFOV (Instant Field of View) is 3 micro-radian.