Further optimization of selected observation triangles technique before star pattern matching

	Further optimization of selected observation triangles technique before star pattern matching
	Li, X.-L.; J.-H. Yang; L. Zhang and S. Zhi
	2015
发表期刊	Yuhang Xuebao/Journal of Astronautics
卷号	36 期号:1 页码:76-81
摘要	A new secondary optimization of selected observation triangles algorithm before star pattern matching is proposed to improve the success rate of the triangle-based star pattern identification algorithm, to reduce the computational complexity of the matching process, and to improve the performance of the star sensors for providing real-time attitudes. The originally selected observation triangles are optimized again before matching and verification to improve the efficiency of star pattern identification. The observation triangles are optimized according to the Quarternion Estimation (OUEST) attitude determination principle, and the constraints with respect to the observation triangle edges and included angles are converted to the image plane. Statistical results of ergodic analysis of the whole celestial sphere show that in the 12 12FOV, the proposed method can improve the success rate of 60.9% that the match is established at the first attempt and the accurate attitude information for is provided star pattern verification. Meanwhile, our method can also significantly reduce the overall computational complexity of star pattern identification for star sensors and enhance the temporal consistency of the output attitude for the whole celestial sphere in each frame. , 2015, China Spaceflight Society. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56356
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li, X.-L.,J.-H. Yang,L. Zhang and S. Zhi. Further optimization of selected observation triangles technique before star pattern matching[J]. Yuhang Xuebao/Journal of Astronautics,2015,36(1):76-81.
APA	Li, X.-L.,J.-H. Yang,&L. Zhang and S. Zhi.(2015).Further optimization of selected observation triangles technique before star pattern matching.Yuhang Xuebao/Journal of Astronautics,36(1),76-81.
MLA	Li, X.-L.,et al."Further optimization of selected observation triangles technique before star pattern matching".Yuhang Xuebao/Journal of Astronautics 36.1(2015):76-81.

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