星载红外相机相对定标算法研究  

Analysis of Relative Calibration Algorithm of Space-borne Infrared Camera

作　　者：王海燕[1] 于晋[1] 李照洲[1] 

机构地区：[1]中国资源卫星应用中心,北京100094

出　　处：《航天返回与遥感》2009年第2期44-49,共6页Spacecraft Recovery & Remote Sensing

摘　　要：文章针对红外相机双面镜旋转多元并扫成像方式的特点,对其相对定标算法进行了研究。首先分析了探元A/B面响应差异,然后介绍了算法原理,采用不同的定标算法获得了定标校正系数,并对定标数据和在轨图像进行了相对辐射校正,验证了算法的正确性和结果的有效性,最后在定标系数校正的基础上,进一步改进了像质。Infrared camera employed the image mode of double - sided mirror scan whose characters must be reconsider carefully. Calibration data were analyzed firstly in this paper. Then, the calibration coefficient was obtained by different algorithms presented previously. The coefficient was used to correct the calibration image and on - orbit image. Finally, the validation and accuracy of the calibration algorithm was showed.

关 键 词：红外相机 相对辐射校正 定标 卫星 

分 类 号：V474.26[航空宇航科学与技术—飞行器设计] U279.3[机械工程—车辆工程]