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Measuring the system gain of the TDI CCD remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
Advanced Materials and Devices for Sensing and Imaging II, November 8, 2004 - November 10, 2004, Beijing, China
Ya-xia L.; Hai-ming B.; Jie L.; Jin R.; Zhi-hang H.
收藏  |  浏览/下载:70/0  |  提交时间:2013/03/25
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  
Photoelectrochemical behavior of a novel composite In0.15Ga0.85As/GaAs vertical bar GaAs/Al0.3Ga0.7As multiple quantum well electrode 期刊论文  OAI收割
ELECTROCHEMISTRY COMMUNICATIONS, 2000, 卷号: 2, 期号: 6, 页码: 404-406
作者:  
Liu, Y;  Xiao, XR;  Zeng, YP
  |  收藏  |  浏览/下载:25/0  |  提交时间:2019/04/09
Photoelectrochemical behavior of a novel composite in0.15ga0.85as/gaas vertical bar gaas/al0.3ga0.7as multiple quantum well electrode 期刊论文  iSwitch采集
Electrochemistry communications, 2000, 卷号: 2, 期号: 6, 页码: 404-406
作者:  
Liu, Y;  Xiao, XR;  Zeng, YP
收藏  |  浏览/下载:29/0  |  提交时间:2019/05/12
Photoelectrochemical behavior of a novel composite In0.15Ga0.85As/GaAs vertical bar GaAs/Al0.3Ga0.7As multiple quantum well electrode 期刊论文  OAI收割
electrochemistry communications, 2000, 卷号: 2, 期号: 6, 页码: 404-406
Liu Y; Xiao XR; Zeng YP
收藏  |  浏览/下载:51/0  |  提交时间:2010/08/12
Size quantization effects in inas self-assembled islands on inp(001) at the onset of 2d-to-3d transition 期刊论文  iSwitch采集
Journal of crystal growth, 1999, 卷号: 197, 期号: 4, 页码: 789-793
作者:  
Liu, FQ;  Wang, ZG;  Wu, J;  Xu, B;  Zhou, W
收藏  |  浏览/下载:18/0  |  提交时间:2019/05/12
Size quantization effects in InAs self-assembled islands on InP(001) at the onset of 2D-to-3D transition 期刊论文  OAI收割
journal of crystal growth, 1999, 卷号: 197, 期号: 4, 页码: 789-793
作者:  
Xu B
收藏  |  浏览/下载:54/0  |  提交时间:2010/08/12
Chemical effects of size quantization of CdS nanoparticles 期刊论文  OAI收割
SCIENCE IN CHINA SERIES B-CHEMISTRY, 1996, 卷号: 39, 期号: 6, 页码: 645-653
作者:  
Chen, DW;  Wang, SH
  |  收藏  |  浏览/下载:33/0  |  提交时间:2019/04/09