The technique of spectral polarization detection is currently one of the important contents of the research at home and abroad. The measuring principle of mid-infrared hyperspectral polarization was introduced. The measuring system of mid-wave infrared hyperspectral polarization was set up. The measuring experiments of polarization characteristic of two coating materials at different temperatures were carried out. The effective experimental data was obtained and analysed. The results show that: as the temperature goes up, the radiance of coating material increase; the more the difference of temperature and emissivity is, the more the upgrade of radiance is; the upgrade of degree of polarization don’t occurs larger change as the change of the upgrade of radiance. This phenomenon provides a meaningful reference for the application of mid-wave infrared spectral polarization characteristic.
Due to the new requirements of multi-site、multi-time、multi-satellites and highfrequency post-launch calibration, the hyperspectral post-launch cross-calibration system is developed. The system integrating global calibration-site network、calibration task automatic planning software and hyperspectral cross-calibration software can efficiently execute post-launch cross-calibration and dynamic performance evaluation. The application of the hyperspectral post-launch cross-calibration system is introduced. Hyperspectral imager Hyperion is used as reference sensor and HJ-1A/HSI is used as sensor to be calibrated. The system is used to acquire the cross-calibration coefficients of all HSI bands. The average differences of all HSI bands is 6.34% when cross-calibration coefficients are compared with site-calibration coefficients. The application feasibility of the post-launch cross-calibration system is validated preliminarily.