中国科学院机构知识库网格系统: Measuring the system gain of the TDI CCD remote sensing camera (EI CONFERENCE)

中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

Measuring the system gain of the TDI CCD remote sensing camera (EI CONFERENCE)

文献类型：会议论文


作者	Ya-xia L. ; Hai-ming B. ; Jie L. ; Jin R. ; Zhi-hang H.
出版日期	2005
会议名称	Advanced Materials and Devices for Sensing and Imaging II, November 8, 2004 - November 10, 2004
会议地点	Beijing, China
关键词	The gain of a TDI CCD camera is the conversion between the number of electrons recorded by the TDI CCD and the number of digital units (counts) contained in the CCD image"[1]. TDI CCD camera has been a main technical approach for meeting the requirements of high-resolution and lightweight of remote sensing equipment. It is useful to know this conversion for evaluating the performance of the TDI CCD camera. In general a lower gain is better. However the resulting slope is the gain of the TDI CCD. We did the experiments using the Integration Sphere in order to get a flat field effects. We calculated the gain of the four IT-EI-2048 TDI CCD. The results and figures of the four TDI CCD are given. this is only true as long as the total well depth (number of electrons that a pixel can hold) of the pixels can be represented. High gains result in higher digitization noise. System gains are designed to be a compromise between the extremes of high digitization noise and loss of well depth. In this paper the mathematical theory is given behind the gain calculation on a TDI CCD camera and shows how the mathematics suggests ways to measure the gain accurately according to the Axiom Tech. The gains were computed using the mean-variance method also known as the method of photon transfer curves. This method uses the effect of quantization on the variance in the measured counts over a uniformly illuminated patch of the detector. This derivation uses the concepts of signal and noise. A linear fit is done of variance vs. mean
页码	520-526
收录类别	EI
源URL	[http://ir.ciomp.ac.cn/handle/181722/33428]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式 GB/T 7714	Ya-xia L.,Hai-ming B.,Jie L.,et al. Measuring the system gain of the TDI CCD remote sensing camera (EI CONFERENCE)[C]. 见:Advanced Materials and Devices for Sensing and Imaging II, November 8, 2004 - November 10, 2004. Beijing, China.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

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