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Research on precision alignment method of a five-mirror optical derotator system 期刊论文
JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS, 2023, 卷号: 9, 期号: 1
作者:  Lei, Yu;  Xu, Songbo;  Cao, Mingqiang;  Ma, Caiwen;  Duan, Zhanjun;  Fu, Xing;  Li, Hua;  Kang, Shifa
Adobe PDF(3387Kb)  |  收藏  |  浏览/下载:62/0  |  提交时间:2023/05/12
five-mirror optical derotator  matrix transformation  alignment  parallelism  concentricity  
Collective energy-spectrum broadening of a proton beam in a gas-discharge plasma 期刊论文
Physical Review E, 2021, 卷号: 103, 期号: 6
作者:  Cheng, Rui;  Hu, Zhang-Hu;  Hui, De-Xuan;  Zhao, Yong-Tao;  Chen, Yan-Hong;  Gao, Fei;  Lei, Yu;  Wang, Yu-Yu;  Zhu, Bing-Li;  Yang, Yang;  Wang, Zhao;  Zhou, Ze-Xian;  Wang, You-Nian;  Yang, Jie
Adobe PDF(1486Kb)  |  收藏  |  浏览/下载:223/2  |  提交时间:2021/07/20
Short-term prediction of UT1-UTC by combination of the grey model and neural networks 期刊论文
ADVANCES IN SPACE RESEARCH, 2017, 卷号: 59, 期号: 2, 页码: 524-531
作者:  Lei, Yu;  Guo, Min(郭敏);  Hu, Dan-dan(胡丹丹);  Cai, Hong-bing;  Zhao, Dan-ning;  Hu, Zhao-peng;  Gao, Yu-ping;  Lei, Y (reprint author), Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China.
Adobe PDF(453Kb)  |  收藏  |  浏览/下载:280/1  |  提交时间:2017/03/15
Ut1-utc  Prediction  Grey Model  Neural Networks (Nn)  
Application of Grey Model GM(1, 1) to Ultra Short-Term Predictions of Universal Time 期刊论文
Artificial Satellites, 2016, 卷号: 51, 期号: 1, 页码: 19-29
作者:  Lei, Yu;  Guo, Min(郭敏);  Zhao, Danning;  Cai, Hongbing;  Hu, Dandan
Adobe PDF(183Kb)  |  收藏  |  浏览/下载:163/5  |  提交时间:2016/03/21
Universal Time (Ut1-utc)  Prediction  Grey Model  
Prediction of Length-of-day Using Gaussian Process Regression 期刊论文
JOURNAL OF NAVIGATION, 2015, 卷号: 68, 期号: 3, 页码: 563-575
作者:  Lei, Yu;  Guo, Min;  Cai, Hongbing;  Hu, Dandan;  Zhao, Danning
Adobe PDF(545Kb)  |  收藏  |  浏览/下载:213/2  |  提交时间:2015/07/16
Length-of-day Lod)  Prediction  Gaussian Process Regression (Gpr)  
空间相机热光学分析与试验验证 期刊论文
光子学报, 2010, 卷号: 39, 期号: 11, 页码: 2068-2072
作者:  陈荣利;  马臻;  杨文刚;  余雷;  贺天兵;  李英才
Adobe PDF(434Kb)  |  收藏  |  浏览/下载:451/2  |  提交时间:2010/12/15
空间相机  热光学分析  热真空试验  
高分辨率空间相机精密热控设计及验证 期刊论文
光子学报, 2009, 卷号: 38, 期号: 9, 页码: 2363-2367
作者:  杨文刚;  余雷;  陈荣利;  李英才
Adobe PDF(330Kb)  |  收藏  |  浏览/下载:423/2  |  提交时间:2010/01/12
高分辨率空间相机  
Medium- and long-term prediction of length-of-day changes with the combined singular spectrum analysis and neural networks 期刊论文
STUDIA GEOPHYSICA ET GEODAETICA
作者:  Lei, Yu;  Zhao, Danning;  Guo, Min
Adobe PDF(2330Kb)  |  收藏  |  浏览/下载:20/0  |  提交时间:2023/08/01
length-of-day  prediction  singular spectrum analysis  neural networks