光学精密工程2017，Vol.25Issue(10)：2541-2550,10.DOI:10.3788/OPE.20172510.2541
地基大口径红外光电系统的联合辐射定标
Combined radiometric calibration of ground-based large-aperture infrared photoelectric systems
摘要
Abstract
When infrared standard stars are used in radiation calibration for a ground-based large-aper-ture infrared photoelectric system ,it can not determine the radiance responsivity of each pixel and shows a poor adaptability for non-uniformity of the system .To solve this problems ,a combined radio-metric calibration method based on infrared standard stars and the small-aperture blackbody was pro-posed .The infrared standard stars were taken as an outer reference source to calibrate the radiance re-sponsivity of the total optics ,and the blackbody was taken as the inner reference source to calibrate the radiance responsivity of the partial optics .Finally ,the transmittance of the front optics was calculated based on the inner and outer calibration results ,and the radiance responsivity of the total optics was calibrated in pixel levels .Several experiments were performed to inverse the illuminance of the infra-red stars .The results show that the maximum relative inversion error of the proposed method is 15 .89％ and that from infrared standard star calibration is 15 .92％ ,which means that the proposed method keeps more accurate than that of the infrared standard star method .Moreover ,the radiance responsivity of the total optics corresponding to each pixel is calibrated ,and the results indicate that the proposed method overcomes the interference of system non-uniformity ,improves the utilization ra-tio of the focal plane array and makes up the application defect of standard infrared stars .关键词
红外光电系统/联合辐射定标/标准红外星/小口径黑体/红外辐射特性Key words
infrared photoelectric system/combined radiometric calibration/infrared standard stars/small-aperture blackbody/infrared radiation feature分类
信息技术与安全科学引用本文复制引用
刘俊池,李洪文,王建立,殷丽梅,李宏壮,赵金宇..地基大口径红外光电系统的联合辐射定标[J].光学精密工程,2017,25(10):2541-2550,10.基金项目
国家863高技术研究发展计划资助项目(No.2015AAXXX1009) （No.2015AAXXX1009）
