Analysis of effect of optical aberration on star centroid location error

	Analysis of effect of optical aberration on star centroid location error
	Tan, D.; X. Zhang; Y. Wu and T. Liu
	2017
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
卷号	46 期号:2
摘要	Centroid location accuracy of stars directly affects the limits of star sensor attitude measurement accuracy, one centroid location error is selection of spot model of star image energy in the algorithm. Star sensor's optical system inevitably has aberration which leads to changing of spot distribution, therefore, it has a realistic significance to explore the effect of optical aberrations on centroid location error for engineering application. Compared with the Gauss function model, four kinds of optical aberration were studied such as defocus and distribution law of centroid location error under the influence of the optical aberration. The analytical expression of location error was calculated combining with the physical process of centroid location, and its numerical simulation was achieved. Experimental results show that the different aberration result in respective spot distribution, further, different centroid location error. And the centroid location error will decrease if the edge energy gets lower evenly at a slow speed according to controlling aberration well. The analysis of centroid location error will help to guide the latter systematic error compensation, and principle of controlling optical aberration will guide the optical system design of star sensor. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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/181722/59209
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Tan, D.,X. Zhang,Y. Wu and T. Liu. Analysis of effect of optical aberration on star centroid location error[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2017,46(2).
APA	Tan, D.,X. Zhang,&Y. Wu and T. Liu.(2017).Analysis of effect of optical aberration on star centroid location error.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,46(2).
MLA	Tan, D.,et al."Analysis of effect of optical aberration on star centroid location error".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 46.2(2017).

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