| CCD噪声分析及处理技术 |
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| 引用本文： | 许秀贞,李自田,薛利军.CCD噪声分析及处理技术[J].红外与激光工程,2004,33(4):343-346,357. |
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| 作者姓名： | 许秀贞 李自田 薛利军 |
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| 作者单位： | 中国科学院,西安光学精密机械研究所,陕西,西安,710068 |
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| 摘 要： | 为了提高CCD的工作性能，根据CCD器件的工作原理，对CCD图像的噪声组成进行了较完整的分析，给出了其噪声的详细分类。根据各噪声的特点，提出了相应的噪声处理技术，并针对输出噪声，给出了双相关采样法、双斜积分法、钳住采样法三种相关双采样电路处理方式，使器件的信噪比得以提高。
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| 关 键 词： | CCD 暗电流噪声 输出噪声 相关双采样 |
| 文章编号： | 1007-2276(2004)04-0343-04 |
| 收稿时间： | 2003/8/26 |
Analysis and processing of CCD noise |
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| XU Xiu-zhen,LI Zi-tian,XUE Li-jun.Analysis and processing of CCD noise[J].Infrared and Laser Engineering,2004,33(4):343-346,357. |
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| Authors: | XU Xiu-zhen LI Zi-tian XUE Li-jun |
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| Abstract: | In order to improve CCD performance, the noise composition in CCD image is analyzed according to the operating principle of CCD, and CCD noise is categorized. Correspending measures are introduced to deal with different noise. Signal processing schemes of double-correlated sampling,dual slope integration and clamp sample are given to eliminate readout noise in this paper. As a result, the SNR of CCD is improved. |
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| Keywords: | CCD Dark current noise Readout noise Correlated Double Sampling(CDS) |
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