| CCD signal acquisition and optimal digital denoise technology | |
| Li, Wencan1,2; Wen, Yan1,3; Wang, Dong1; Yao, Dalei1 | |
| 作者部门 | 空间光学技术研究室 |
| 2021-12 | |
| 发表期刊 | High Technology Letters
 |
| ISSN | 10066748 |
| 卷号 | 27期号:4页码:422-429 |
| 产权排序 | 1 |
| 摘要 | To reduce the charge-coupled device(CCD) readout noise and improve the detection ability under low illumination and dim targets, a new low-noise CCD signal processing technology-CCD digital denoise-is gradually being employed in aerospace detection and other fields. In this study, the main readout noise of CCD detectors and its characteristics are analyzed. A CCD digital denoise system and an experimental platform are designed as well as established by using a PCIe data acquisition card. According to the characteristics of readout noise, some digital filters are analyzed and designed based on distributed kernel coefficient, and the optimal kernel coefficients are obtained through iteration. Then, CCD signal and filter model are established, and the optimal filter is designed to apply to the digital denoise system. Finally, according to the image data obtained from the system, the performance of the digital denoise system and digital filtering algorithm is evaluated and compared. At 500kHz and 1MHz CCD readout rates, the denoising performance of the optimal filter designed in the experiment is 16%-32% higher than that of the digital filter with kernel distribution coefficient, and 50%-60% higher than that of the traditional correlated double sampling technology. Copyright © by HIGH TECHNOLOGY LETTERS PRESS. |
| 关键词 | charge-coupled device (CCD) low noise reset noise digital correlated double sampling optimal filte |
| DOI | 10.3772/j.issn.1006-6748.2021.04.011 |
| 收录类别 | EI |
| 语种 | 英语 |
| 出版者 | Inst. of Scientific and Technical Information of China |
| EI入藏号 | 20215211395539 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/95622 |
| 专题 | 空间光学技术研究室 |
| 作者单位 | 1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China; 3.College of Automation, Northwestern Polytechnical University, Xi'an; 710068, China |
| 推荐引用方式 GB/T 7714 | Li, Wencan,Wen, Yan,Wang, Dong,et al. CCD signal acquisition and optimal digital denoise technology[J]. High Technology Letters,2021,27(4):422-429. |
| APA | Li, Wencan,Wen, Yan,Wang, Dong,&Yao, Dalei.(2021).CCD signal acquisition and optimal digital denoise technology.High Technology Letters,27(4),422-429. |
| MLA | Li, Wencan,et al."CCD signal acquisition and optimal digital denoise technology".High Technology Letters 27.4(2021):422-429. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| CCD signal acquisiti（1417KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 | |
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