Clocking smear analysis and reduction for multi phase TDI CCD in remote sensing system

	Clocking smear analysis and reduction for multi phase TDI CCD in remote sensing system
其他题名	论文其他题名
	Wang D. J.; Zhang T.; Kuang H. P.
	2011
发表期刊	Optics Express
ISSN	1094-4087
卷号	19 期号:6 页码:4868-4880
摘要	Clocking smear caused by charge transfer of time delay and integration charge coupled device (TDI CCD) is the natural component in remote imaging sensing system, and it could not be eliminated by traditional motion compensation schemes. After researching on the operation of a typical three phase TDI CCD, we give a thorough understanding on causes of clocking smear. Then an elaborate mathematical model describing the charge transfer procedure is developed, and the modulation transfer function (MTF) losses due to charge transfer is also presented, which shows that nearly one pixel smear will be introduced by traditional phase timing. Therefore we propose a novel charge transfer method, using which only 1/2 phi pixel smear will occur within the imaging operation of a single TDI stage, where phi represents the number of timing phases. Finally, a series of image simulations are made for two, three and four phase TDI CCD in which clocking smear is caused by our and conventional charge transfer methods respectively. The experimental results confirm that image quality improvement can be achieved by our method. (C) 2011 Optical Society of America
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26087
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang D. J.,Zhang T.,Kuang H. P.. Clocking smear analysis and reduction for multi phase TDI CCD in remote sensing system[J]. Optics Express,2011,19(6):4868-4880.
APA	Wang D. J.,Zhang T.,&Kuang H. P..(2011).Clocking smear analysis and reduction for multi phase TDI CCD in remote sensing system.Optics Express,19(6),4868-4880.
MLA	Wang D. J.,et al."Clocking smear analysis and reduction for multi phase TDI CCD in remote sensing system".Optics Express 19.6(2011):4868-4880.

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