高精度卫星光学遥感器辐射定标技术

摘要

随着长期气候变化等观测新需求和高分辨对地观测等新手段的发展，空间光学仪器面临进一步提高辐射定标精度的要求。文章从空间光学仪器定标精度的制约因素和全过程定标的实现等方面，分析了国际相关领域的技术进展，并就新型定标技术的研究和应用提出建议与展望。%Climate change monitoring and high resolution earth observation demand higher accuracy of absolute calibration for space optical sensors. This paper briefly discusses the progress and constrained factors of current radiometric calibration techniques. New calibration approaches and instrumentations such as hyperspectral and spectrally tunable reference light sources, and global calibration site network are introduced, and their applications are suggested.