第19卷
第3期
2011年3月
文章编号
1004-924X(2011)03-0641-10
光学精密工程
Optics and Precision Engineering
Vol.19
'ON Mar.2011
星载TDICCD动态成像全物理仿真系统设计
张刘，孙志远1.2，金光1
（1.中国科学院长春光学精密机械与物理研究所，吉林长春130033；
2.中国科学院研究生院，北京130039)
摘要：基于高精度卫星姿态控制仿真三轴气浮台，研制了高精度卫星姿态控制仿真子系统，用于为地面TDICCD动态成像仿真系统提供真实的仿真环境。根据TDICCD实际成像原理，采用软件模拟替代实际线阵相机的TDI电荷转移选加
稳定度为0.01(")/s的卫星姿态控制仿真实验，模拟了积分时间为0.1s的TDICCD相机4～16级动态成像过程。研究了卫星姿态对TDICCD相机拍照的影响，分析了实际航天高性能TDICCD相机成像建模理论。像移速度匹配误差为 0.姿态稳定度大于0.01()/s的实验显示了物理仿真与数学仿真结果与理论分析基本一致，不仪验证了该平台物理仿真方案的正确性，也初步验证了航天CCD成像建模理论的正确性。
关
键
调：TDICCD；物理仿真系统；委态控制；像移
中图分类号：V416.8
文献标识码：A
doi,10.3788/OPE.20111903.0641
DesignofphysicalsimulationsystemforTDICCDdynamicimaging
ZHANGLiu'，SUN Zhi-yuan'-,JIN Guang
(l.Changchun Institute of Optics,Fine Mechanics and Physics,
ChineseAcademyofSciences,Changchun130033,China;
2.GraduateUniuersity of ChineseAcademy of Sciences,Beijing100039,China)
Abstract: A ground-based physical TDI CCD imaging simulation system is developed, which consists of a high precision satellite 3-axis attitude control simulation subsystem based on a 3-axis air bearing table, and a TDI CCD imaging simulation subsystem whose TDI image procedure is simulated by soft-ware using an area-array CCD. The designed system realizes the simulation of satellite 3-axis attitude control with a maximum pointing accuracy of 0. 1°and a attitude steady accuracy of 0. O1(°)/s, and implements an imaging simulation of 4-stage to 16-stage TDI CCD with the integration time of o. 1 s Furthermore, the effect of satllite 3-axis attitude on the TDICCD photography is researched and the correction of the modeling theory for a space TDI CCD image motion model is proved, Experiment results show that the physical experiment results are in accordance with those of mathematical simulation and theoretical analysis.
which justifies the feasibility of system design and the validity of image motion theory Key words:TDI CCD; physical simulation system; attitude control; image motion
收稿日期：2010-05-04；修订日期：2010-07-26
基金项目：吉林省科技发展计划资助项目（No.20090102)国家自然科学青年基金项目资助（No.61008046)