Design of physical simulation system for TDI CCD dynamic imaging

被引：1
|
作者：
Zhang L. [1 ]
Sun Z.-Y. [1 ,2 ]
Jin G. [1 ,2 ]
机构：
[1] Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
[2] Graduate University of Chinese Academy of Sciences
来源：
Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2011年 / 19卷 / 03期
关键词：
Attitude control; Image motion; Physical simulation system; TDI CCD;
D O I：
10.3788/OPE.20111903.0641
中图分类号：
学科分类号：
摘要：
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 software 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 0.01(°)/s, and implements an imaging simulation of 4-stage to 16-stage TDI CCD with the integration time of 0.1 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.
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页码：641 / 650
页数：9
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