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5 The least squares estimator of random variables under convex operators on L-F(infinity) (mu) space 期刊论文  OAI收割
STATISTICS & PROBABILITY LETTERS, 2022, 卷号: 181, 页码: 7
作者:  Sun, Chuanfeng;  Ji, Shaolin;  Kong, Chuiliu
  |  收藏  |  浏览/下载：27/0  |  提交时间：2022/04/02
KALMAN-BUCY FILTERING AND MINIMUM MEAN SQUARE ESTIMATOR UNDER UNCERTAINTY 期刊论文  OAI收割
SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 2021, 卷号: 59, 期号: 4, 页码: 2669-2692
作者:  Ji, Shaolin;  Kong, Chuiliu;  Sun, Chuanfeng;  Zhang, Ji-Feng
  |  收藏  |  浏览/下载：16/0  |  提交时间：2022/04/02
Stochastic proximal quasi-Newton methods for non-convex composite optimization 期刊论文  OAI收割
OPTIMIZATION METHODS & SOFTWARE, 2019, 卷号: 34, 期号: 5, 页码: 922-948
作者:  Wang, Xiaoyu;  Wang, Xiao;  Yuan, Ya-xiang
  |  收藏  |  浏览/下载：68/0  |  提交时间：2020/01/10
Laplace’s equation with concave and convex boundary nonlinearities on an exterior region 期刊论文  OAI收割
Boundary Value Problems, 2019, 卷号: 2019, 期号: 1
作者:  Mao,Jinxiu;  Zhao,Zengqin;  Qian,Aixia
  |  收藏  |  浏览/下载：26/0  |  提交时间：2019/04/02
An iterative algorithm for third-order tensor multi-rank minimization 期刊论文  OAI收割
COMPUTATIONAL OPTIMIZATION AND APPLICATIONS, 2016, 卷号: 63, 期号: 1, 页码: 169-202
作者:  Yang, Lei;  Huang, Zheng-Hai;  Hu, Shenglong;  Han, Jiye
  |  收藏  |  浏览/下载：27/0  |  提交时间：2018/07/30
Far-field focusing of laser beam based on digital image processing techniques (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者:  Zhao S.;  Tian Y.-Z.;  Liu L.-S.;  Guo J.;  Zhang H.-Y.
收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25
In order to lead the laser beam transmit in the atmosphere convergently  an experiment of laser focus at the distance of 450m and 300m has been operated in the outdoor place. The actual manipulations are as follows: Firstly  the laser was collimated by a beam expander  then the near-parallel laser beam was transmitted with a Galileo telescope system  and the distance between the concave lens and the convex lens can be tuned through a precise displacement platform  so the focus of the system changed due to the tiny displacement of the concave lens. Secondly  the average power of the laser spot can be measured using power meter  the power is 47.67mW and the standard deviation is 0.67mW while the focal length is 450m. Thirdly  the energy distribution was found through the laser beam analyzer. The spot images were saved using the beam analyzer  then the saved image can be processed with Matlab software afterwards. The function named EDGE and Sobel operator was used in the pre-processing of the saved image  then method of median filter was used in the course of image de-noising and 53H filter was adopted in the signal analysis. The diameter of laser spot was obtained by the method above  the diameter is 5.56mm and the standard deviation is 0.24mm. The spot center excursion is 0.56mm  it is 10.43% of the total diameter of the laser spot. At last  the key factors of the energy dissipation in the focusing system can be summarized as follows: restriction of the diffraction limit  attenuation in the atmosphere  geometrical aberration of optical system  and the diffraction limit and the geometrical aberration are significant in the three factors above  so we can reduce the impact of the both factors during the design of optical system. The reliable referenced data of the system design can be acquired through the primary experiment research. 2010 SPIE.  
On convexity of generalized Wigner-Yanase-Dyson information 期刊论文  OAI收割
LETTERS IN MATHEMATICAL PHYSICS, 2008, 卷号: 83, 期号: 3, 页码: 253-264
作者:  Cai, Liang;  Luo, Shunlong
  |  收藏  |  浏览/下载：21/0  |  提交时间：2018/07/30