敏捷卫星像移补偿残差计算及对成像影响分析  

Analysis on Residue of Image Shift Compensation and Its Effects on Imagine for Agile Satellite

作　　者：谢少波[1] 秦冉冉[1] 

机构地区：[1]上海卫星工程研究所,上海200240

出　　处：《航天器工程》2013年第4期12-16,共5页Spacecraft Engineering

摘　　要：通过分析敏捷卫星相机像移模糊机理,计算了对偏流角和行频像移补偿后的残差,并对其引起调制传递函数(MTF)的下降进行了仿真计算。结果表明,敏捷光学成像卫星相机设计中行频控制残差对成像质量的影响不容忽视,宜选用像元数少的时间延迟积分电荷耦合器件(TDIC-CD)予以解决。文章的研究结果对敏捷卫星的总体指标设计具有参考价值。The mismatch of the bias-angle and the line rate is analyzed for an agile satellite, this paper also calculates the MTF degradation caused by the compensation residue of the image shift. The results show that the MTF degradation caused by residue of line rate should not be igored and we can select less pixels TDICCD to solve this problem. The analytic method and result in this paper provide an analytic basis for setting reasonable specifications of agile imaging satellite.

关 键 词：敏捷卫星 像移 残差 调制传递函数 

分 类 号：V445.8[航空宇航科学与技术—飞行器设计]