Influence of image motion on image quality of off-axis TMA aerospace mapping camera

	Influence of image motion on image quality of off-axis TMA aerospace mapping camera
	Wang G.-L.; Liu J.-G.; Long K.-H.; Zhou L.; Guo J.; Chen J.-Y.; Yu D.; Kong D.-Z.
	2014
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	ISBN/1004924X
卷号	22 期号:3 页码:806-813
摘要	This paper explores a method to correct the image movement model of an off-axis Three-mirror Anastigmat (TMA) optical system to obtain higher mapping accuracy. Two kinds of line-array Off-axis TMA mapping cameras were modeled and the calculation formulas of image motion speeds and drift angles for the oblique-view camera and the nadir-view camera were deduced by considering earth curvature. By taking the off-axis TMA aerospace mapping camera with an intersection angle of 25 for an example, the influences of image motion speed matching remains and drift angle remains on the image quality of off-axis TMA aerospace mapping camera were analyzed at the oblique-view camera adjusted with the row transfer periods and their drift angles. Results indicate if more 5 TDI stages are used, the oblique-view camera and the nadir-view camera under a constraint of 5% MTF reduction should adjust their row transfer periods respectively; if drift angle of the oblique-view camera is adjusted according to the nadir-view camera, TDI stages should be no more than 71. However, If drift angles are adjusted by giving attention to the oblique-view camera and the nadir-view camera, the imaging quality for the both cameras has no essential influence at a TDI stage of 96.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44081
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang G.-L.,Liu J.-G.,Long K.-H.,et al. Influence of image motion on image quality of off-axis TMA aerospace mapping camera[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2014,22(3):806-813.
APA	Wang G.-L..,Liu J.-G..,Long K.-H..,Zhou L..,Guo J..,...&Kong D.-Z..(2014).Influence of image motion on image quality of off-axis TMA aerospace mapping camera.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,22(3),806-813.
MLA	Wang G.-L.,et al."Influence of image motion on image quality of off-axis TMA aerospace mapping camera".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 22.3(2014):806-813.

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