Fast identification of star images from drift-scan CCD based on DSP

	Fast identification of star images from drift-scan CCD based on DSP
	Yang, H.-L.; J. Wang; H.-Y. Liu; X. He and X. Zhang
	2015
发表期刊	Guangdianzi Jiguang/Journal of Optoelectronics Laser
卷号	26 期号:12 页码:2417-2422
摘要	To improve identification speed of star images which are taken by drift-scan CCD and realize real-time orbit determination of synchronous satellite, a fast star image identification algorithm based on DSP is proposed. The big data is calculated on the platform of embedded DSP, on this basis, the twice match method which is an optimized triangle identification method is proposed to accelerate the calculation speed. The main steps of the new method are that selecting reference stars from the star catalogue as the form of interval to as the first matching reference stars, then calculating the CCD negative model based on first matching outcomes, the CCD negative model represents the relationship between background stars and reference stars in catalog, in the end, matching all stars based on the CCD negative model. The experiment results of star images whose resolution is 1 5281 528 show that because of introducing DSP and improving identification method, the identification speed is become faster in a great part. The processing time taken by new method is only 50% than that of traditional triangle identification algorithm. Meanwhile the identification rate is up to 98.4%. The outcomes of the experiences validate the advantages of the new method on aspect of real time capability and identification rate. 2015, Board of Optronics Lasers. 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/181722/56008
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Yang, H.-L.,J. Wang,H.-Y. Liu,et al. Fast identification of star images from drift-scan CCD based on DSP[J]. Guangdianzi Jiguang/Journal of Optoelectronics Laser,2015,26(12):2417-2422.
APA	Yang, H.-L.,J. Wang,H.-Y. Liu,&X. He and X. Zhang.(2015).Fast identification of star images from drift-scan CCD based on DSP.Guangdianzi Jiguang/Journal of Optoelectronics Laser,26(12),2417-2422.
MLA	Yang, H.-L.,et al."Fast identification of star images from drift-scan CCD based on DSP".Guangdianzi Jiguang/Journal of Optoelectronics Laser 26.12(2015):2417-2422.

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基于DSP的漂移扫描CCD星图快速识别.（1251KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载