Registration model based on homologous points tracking of space camera assembly imaging

	Registration model based on homologous points tracking of space camera assembly imaging
	Wu, Y.; G. Li; K. Zhang; Y. Zhang and L. Jin
	2016
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
卷号	45 期号:3
摘要	The electrical low-frequency noise of 976nm InGaAs quantum well high-power semiconductor lasers was measured under a current less than 1/30 of the threshold current. An approach was proposed to analyze the noise origins by using the relation between the 1/f noise correlation of time-domain signal wavelet coefficients and the bias current. Combining the 1/f noise origin model with the characteristics of the wavelet coefficients, a series of contrast experiments were conducted to compare the results before and after adding white noise under different bias currents. The results indicate that, the low-frequency noise we measured shows typical 1/f noise characteristics. For a pure 1/f noise, the same results are obtained when to determine the noise origin by using the noise amplitude method and wavelet coefficients correlation method. However, for the 1/f noise signal containing white noise, there is a significant fluctuation on the noise amplitude and it cannot show the origin 1/f noise correctly, whereas the wavelet coefficients correlation under some scales is still a reliable criterion. 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/181722/57290
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wu, Y.,G. Li,K. Zhang,et al. Registration model based on homologous points tracking of space camera assembly imaging[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2016,45(3).
APA	Wu, Y.,G. Li,K. Zhang,&Y. Zhang and L. Jin.(2016).Registration model based on homologous points tracking of space camera assembly imaging.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,45(3).
MLA	Wu, Y.,et al."Registration model based on homologous points tracking of space camera assembly imaging".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 45.3(2016).

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