中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共8条,第1-8条 帮助

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CLDRNet: A Difference Refinement Network Based on Category Context Learning for Remote Sensing Image Change Detection 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2024, 卷号: 17, 页码: 2133-2148
作者:  
Wan, Ling;  Tian, Ye;  Kang, Wenchao;  Ma, Lei
  |  收藏  |  浏览/下载:19/0  |  提交时间:2024/02/20
Analysis of water quality indexes and their relationships with vegetation using self-organizing map and geographically and temporally weighted regression 期刊论文  OAI收割
ENVIRONMENTAL RESEARCH, 2023, 卷号: 216, 页码: 12
作者:  
Feng, Zhaohui;  Xu, Chengjian;  Zuo, Yiping;  Luo, Xi;  Wang, Lingqing
  |  收藏  |  浏览/下载:48/0  |  提交时间:2022/12/20
Analysis of water quality indexes and their relationships with vegetation using self-organizing map and geographically and temporally weighted regression 期刊论文  OAI收割
ENVIRONMENTAL RESEARCH, 2023, 卷号: 216, 页码: 12
作者:  
Feng, Zhaohui;  Xu, Chengjian;  Zuo, Yiping;  Luo, Xi;  Wang, Lingqing
  |  收藏  |  浏览/下载:25/0  |  提交时间:2022/12/20
Chaotic synchronization between linearly coupled discrete fractional Henon maps 期刊论文  OAI收割
INDIAN JOURNAL OF PHYSICS, 2016, 卷号: 90, 期号: 3, 页码: 313-317
作者:  
Liu, Y.
收藏  |  浏览/下载:20/0  |  提交时间:2016/07/12
Chaotic synchronization between linearly coupled discrete fractional Henon maps 期刊论文  OAI收割
INDIAN JOURNAL OF PHYSICS, 2016, 卷号: 90, 期号: 3, 页码: 313-317
作者:  
Liu, Y.
收藏  |  浏览/下载:15/0  |  提交时间:2016/07/12
Direct demodulation method for heavy atom position determination in protein crystallography 期刊论文  OAI收割
Chinese Physics C, 2013, 期号: 1, 页码: 133-137
作者:  
Zhou L(周亮);  Liu ZC(刘忠川);  刘鹏(多);  Dong YH(董宇辉)
收藏  |  浏览/下载:11/0  |  提交时间:2015/12/25
Annular sub-aperture stitching interferometry for testing of large asphreical surfaces (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings, September 9, 2007 - September 12, 2007, Beijing, China
作者:  
Zheng L.-G.;  Zhang X.-J.;  Deng W.-J.;  Wang X.-K.
收藏  |  浏览/下载:78/0  |  提交时间:2013/03/25
Annular subaperture stitching interferometric technology can test large-aperture  and the PV and RMS of residual error of the full aperture phase distribution is 0.027 and 0.0023  high numerical aperture aspheric surfaces with high resolution  the relative error of PV and RMS is -0.53% and -0.31%  respectively. The results conclude that this splicing model and algorithm are accurate and feasible. So it provides another quantitive measurement for test aspheric surfaces especially for large aperture aspheres besides null-compensation.  low cost and high efficiency without auxiliary null optics. In this paper  the basic principle and theory of the stitching method are introduced  the reasonable mathematical model and effective splicing algorithm are established based on simultaneous least-squares method and Zernike polynomial fitting. The translation errors are eliminated from each subaperture through the synthetical optimization stitching mode  it keeps the error from transmitting and accumulating. The numerical simulations have been carried on by this method. As results  the surface map of the full aperture after stitching is consistent to the input surface map  the difference of PV error and RMS error between them is -0.0074 and -0.00052 ( is 632.8nm)  respectively  
Phase retrieval based on difference map and deep neural networks 期刊论文  OAI收割
Journal of Modern Optics
作者:  
Li, Baopeng;  Ersoy, Okan K.;  Ma, Caiwen;  Pan, Zhibin;  Wen, Wansha
  |  收藏  |  浏览/下载:21/0  |  提交时间:2021/10/11