Design and application of accurate pointing and auto-unlocking sun tracker on satellite

	Design and application of accurate pointing and auto-unlocking sun tracker on satellite
	Wang, Y.-P.; K. Wang; R.-D. Jia and W. Fang
	2016
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	24 期号:1
摘要	In order to realize the long period gaze exposure imaging for low-light application, an exposure period algorithm was designed to match the attitude change of gaze tracking image. Based on the mathematical model of the satellite to ground real-time gaze tracking, the velocity matching exposure imaging relations was set up. Image motion was induced by three-axis attitude angle and control accuracy of attitude angular velocity during the low-light imaging exposure period produces, and it can be calculated by using the method of the Monte Carlo. And exposure period was analyzed to meet the satellite attitude control accuracy in the low-light imaging. Finally, an on-orbit test of adaptive exposure period of low-light imaging algorithm was carried out on the smart verification satellite. Results show that: the corresponding imaging exposure time is18 ms and 55.2 ms respectively when the control accuracy of satellite attitude is 0.08, 0.0088/s and 0.04, 0.003/s. The actual deviation pixel of target point in the process exposure at imaging is less than 1 pixel. This bias has little influence on the imaging quality and image signal-to-noise ratio. 2016, Science Press. All right reserved.
文章类型	期刊
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/181722/57270
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang, Y.-P.,K. Wang,R.-D. Jia and W. Fang. Design and application of accurate pointing and auto-unlocking sun tracker on satellite[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2016,24(1).
APA	Wang, Y.-P.,K. Wang,&R.-D. Jia and W. Fang.(2016).Design and application of accurate pointing and auto-unlocking sun tracker on satellite.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,24(1).
MLA	Wang, Y.-P.,et al."Design and application of accurate pointing and auto-unlocking sun tracker on satellite".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 24.1(2016).

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