Real-time drift angle compensation based on speed vector model for space camera on circular orbit

	Real-time drift angle compensation based on speed vector model for space camera on circular orbit
	Sun Y.; Xue D.; Zheng L.; Zhang X.
	2014
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN	ISBN/10072276
卷号	43 期号:7 页码:2185-2191
摘要	Drift angle is an important factor which disturbs image quality of linear array CCD camera in push broom imaging mode. In order to realize fast calculation to drift angle under limited computational resource condition on orbit, a drift angle expression applied to remote sensor with straight, forward and backward sight on circular orbit was constructed, based on character of relative motion between velocity of camera on round orbit and of ground target which moved with rotation of the earth. Mathematical expression of angular vibration of the velocity vector of satellite relative to target during satellite's flight was given. The real-time adjusting method based on CCD rotating was presented and verified by constructing imaging testbed of real-time drift compensation. Simulation and test results indicate that speed vector model has higher calculation efficiency, and calculation accuracy and stability are as much as method of coordinate transformation and orbital element. MTF degradation can be suppressed to 5% with drift compensated by speed vector model. The method can be further used for development of drift angle real time adjustment mechanism of TDICCD camera and three-line CCD 3-D photography camera.
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/181722/44315
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Sun Y.,Xue D.,Zheng L.,et al. Real-time drift angle compensation based on speed vector model for space camera on circular orbit[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2014,43(7):2185-2191.
APA	Sun Y.,Xue D.,Zheng L.,&Zhang X..(2014).Real-time drift angle compensation based on speed vector model for space camera on circular orbit.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,43(7),2185-2191.
MLA	Sun Y.,et al."Real-time drift angle compensation based on speed vector model for space camera on circular orbit".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 43.7(2014):2185-2191.

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