Improved method to fully compensate the spatial phase nonuniformity of LCoS devices with a Fizeau interferometer

	Improved method to fully compensate the spatial phase nonuniformity of LCoS devices with a Fizeau interferometer
	Lu, Q.; L. Sheng; F. Zeng; S. J. Gao and Y. F. Qiao
	2016
发表期刊	Applied Optics
卷号	55 期号:28
摘要	To compensate the image motion of a space camera with large field, a general image motion velocity field model was established by combination of coordinate transformation and attitude dynamics for an off-axis three mirror anastigmat camera. In modelling, the effect of off-axis angles of three-mirror system on the image motion was taken into account, and the formulas of image motion velocity field in the off-axis three-mirror system were derived. By taking a space camera with large field for an example, the distribution characteristics of imaging motion velocity field under three typical imaging attitudes were analyzed. The influence of three axis attitude stability on imaging quality of the satellite was studied. The results indicate that the decline of satellite attitude stability, especially the pitching attitude stability, will lead to the decrease of dynamic Modulation Transfer Function (MTF)of focal plane. And the decrease is more obvious when the integration stages are increased. Moreover, the satellite attitude should be more stable when the camera is imaged in a side rolling with a large angle. For the space camera with 96 integration stages and the reduction of MTF no more than 5%, the satellite three-axis attitude stability should be controlled under 0.001()/s. the experiment results confirm the above analysis of satellite stability, verify the accuracy of the proposed image motion velocity field model and provide a reliable basis for the image motion compensation of space cameras with large fields. 2016, Science Press. All right reserved.
文章类型	期刊
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57115
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Lu, Q.,L. Sheng,F. Zeng,et al. Improved method to fully compensate the spatial phase nonuniformity of LCoS devices with a Fizeau interferometer[J]. Applied Optics,2016,55(28).
APA	Lu, Q.,L. Sheng,F. Zeng,&S. J. Gao and Y. F. Qiao.(2016).Improved method to fully compensate the spatial phase nonuniformity of LCoS devices with a Fizeau interferometer.Applied Optics,55(28).
MLA	Lu, Q.,et al."Improved method to fully compensate the spatial phase nonuniformity of LCoS devices with a Fizeau interferometer".Applied Optics 55.28(2016).

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