Adaptive compensation technique for CCD signal sampling positions in high-resolution remote sensing cameras

doi:10.3788/OPE.20202804.0973

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	Adaptive compensation technique for CCD signal sampling positions in high-resolution remote sensing cameras
	X.-C. Sun, H.-Y. Lu, X.-C. Xue, J.-X. Shi and Y. Fu
刊名	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
	2020
卷号	28 期号:4 页码:973-978
ISSN号	1004924X
DOI	10.3788/OPE.20202804.0973
英文摘要	Under the influence of temperature changes, the phase of the CCD sampling signal of a high-resolution remote sensing camera canvary.This canadversely affect the signal-to-noise ratio and dynamic range of the imageand may even cause the image to be displayedabnormally. To solve this problem of temperature-relatedsampling position drift, an adaptive compensation design was developed for the CCD sampling position of a high-resolution remote sensing camera. First, the initial position of the CCD sampling signal was precisely adjusted, and an adaptive compensation circuit was then designed tocontrol the power consumption, which rendered the temperature of each driver chipto be essentially the same. The advantage of this method is that the CCD and sampling signals can be effectively monitored during temperature changes, thus, ensuring the accuracy of the sampling position of the CCD signal and stability of the signal-to-noise ratio of the image. The experiments indicate that with this method, the accuracy of the initial position adjustment of the correlated double-sampling signal improves to less than 0.039 ns. Additionally, the maximum delay of the correlated double-sampling signal in the satellite in-orbit temperature range is 0.46 ns, which ensures high-quality imaging and meets the requirements of space applications. 2020, Science Press. All right reserved.
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内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64287]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X.-C. Sun, H.-Y. Lu, X.-C. Xue, J.-X. Shi and Y. Fu. Adaptive compensation technique for CCD signal sampling positions in high-resolution remote sensing cameras[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2020,28(4):973-978.
APA	X.-C. Sun, H.-Y. Lu, X.-C. Xue, J.-X. Shi and Y. Fu.(2020).Adaptive compensation technique for CCD signal sampling positions in high-resolution remote sensing cameras.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,28(4),973-978.
MLA	X.-C. Sun, H.-Y. Lu, X.-C. Xue, J.-X. Shi and Y. Fu."Adaptive compensation technique for CCD signal sampling positions in high-resolution remote sensing cameras".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 28.4(2020):973-978.