中国科学院机构知识库网格系统: 检索

Research for axial power distribution control of a space nuclear reactor based on nonlinear model 期刊论文 OAI收割
ANNALS OF NUCLEAR ENERGY, 2022, 卷号: 168
作者: Zhao, Chengxuan; Yang, Xiao; Yang, Minghan; Wang, Jianye; Chen, Shuai

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收藏 | 浏览/下载：44/0 | 提交时间：2022/12/23

Power distribution control Integral Lyapunov function Distributed parameter control Exponential stability Space nuclear reactor

Accurate 3D Locating and Tracking of Basketball Players from Multiple Videos 会议论文 OAI收割
Tokyo, Japan, 2018.12.3-2018.12.7
作者: Weiliang Meng; Shibiao Xu; Er Li; Xiangyong Zeng; Xiaopeng Zhang

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收藏 | 浏览/下载：6/0 | 提交时间：2023/04/27

tracking integral space Gaussian Mixture Model grouping

Counting integral points in certain homogeneous spaces 期刊论文 OAI收割
JOURNAL OF ALGEBRA, 2016, 卷号: 448, 页码: 350-398
作者: Wei, Dasheng; Xu, Fei

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收藏 | 浏览/下载：14/0 | 提交时间：2018/07/30

Integral point Homogeneous space Tamagawa measure

AREA INTEGRAL FUNCTIONS FOR SECTORIAL OPERATORS ON L-P SPACES 期刊论文 OAI收割
ACTA MATHEMATICA SCIENTIA, 2014, 卷号: 34, 期号: 3, 页码: 739-747
作者: Chen, Zeqian; Sun, Mu

收藏 | 浏览/下载：31/0 | 提交时间：2015/06/24

Sectorial operator H-infinity Functional calculus area integral function square function L-P space

AREA INTEGRAL FUNCTIONS AND H-infinity FUNCTIONAL CALCULUS FOR SECTORIAL OPERATORS ON HILBERT SPACES 期刊论文 OAI收割
ACTA MATHEMATICA SCIENTIA, 2013, 卷号: 33, 期号: 4, 页码: 989-997
作者: Chen, Zeqian; Sun, Mu

收藏 | 浏览/下载：28/0 | 提交时间：2015/06/23

sectorial operator H-infinity functional calculus area integral function square function Hilbert space

Error Analysis of Stochastic Gradient Descent Ranking 期刊论文 OAI收割
ieee transactions on cybernetics, 2013, 卷号: 43, 期号: 3, 页码: 898-909
作者: Chen, Hong; Tang, Yi; Li, Luoqing; Yuan, Yuan; Li, Xuelong

收藏 | 浏览/下载：41/0 | 提交时间：2015/06/03

Error analysis integral operator ranking reproducing kernel Hilbert space sampling operator stochastic gradient descent

Analysis of the applicability of collision probability algorithms for nonlinear relative motion 期刊论文 OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2013, 卷号: 56, 期号: 5, 页码: 1041-1046
作者: Xu XiaoLi; Xiong YongQing

收藏 | 浏览/下载：33/0 | 提交时间：2014/01/08

space debris collision probability nonlinear relative motion integral limits

Geocentric distance's errors' correction of space cameras based on USGS DEM (EI CONFERENCE) 会议论文 OAI收割
2011 IEEE 3rd International Conference on Communication Software and Networks, ICCSN 2011, May 27, 2011 - May 29, 2011, Xi'an, China
作者: Li W.; Li W.; Xu S.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

In order to correct the geocentric distance's error of TDI (Time Delay and Integration) CCD space camera in calculation of image motion compensation the data source of the earth's height above sea level USGS DEM (United States Geological Survey Digital Elevation Model) has been introduced to make digital elevation map the match error of the forward direction (the integral direction of TDI CCD) has been greatly decreased by correcting the geocentric distance error and eliminate the influence to the relative error of image motion velocity and correct the error generated by the different heights above sea level. After correcting which greatly improves the imaging quality of TDI CCD space camera. 2011 IEEE. a model of image motion calculation of nadir has been introduced the calculation and analysis of the model shows that: the maximum error of image motion velocity about 1.72% has been decreased to 0.06% and the influence of the geocentric distance error to the relative error of image motion velocity has been analyzed with the model

Analysis of a diffractive microlens using the finite-difference time-domain method (EI CONFERENCE) 会议论文 OAI收割
作者: Liu Y.; Liu H.; Liu H.; Liu H.; Liu Y.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

The finite-difference time-domain (FDTD) method is used as rigorous electromagnetic analysis model to calculate the field for a diffractive microlens (DML). The FDTD is used for the entire solution rather than using a near- to far-field propagation method to obtain the far-field energy distribution thus all the results are vector based. We derived a formula to calculate the magnitude of electric field which is time dependent and can be used to graphically show the light wave propagation and focusing process through a DML. Both the comparison and the integral methods are presented to obtain wave amplitude in full solution space and the distribution of light energy behind a DML is illustrated based on the wave amplitude. The formula of diffractive efficiency of the DML is derived from a time-averaged Ponyting vector which can indicate the propagation direction of light energy. Application of these formulations in the analysis of a DML example demonstrates the high accuracy and efficiency of our method. 2010 Society of Photo-Optical Instrumentation Engineers.

Earth elevation map production and high resolution sensing camera imaging analysis (EI CONFERENCE) 会议论文 OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者: Dai L.

收藏 | 浏览/下载：135/0 | 提交时间：2013/03/25

The Earth's digital elevation which impacts space camera imaging has prepared and imaging has analysed. Based on matching error that TDI CCD integral series request of the speed of image motion statistical experimental methods-Monte Carlo method is used to calculate the distribution histogram of Earth's elevation in image motion compensated model which includes satellite attitude changes orbital angular rate changes latitude longitude and the orbital inclination changes. And then elevation information of the earth's surface from SRTM is read. Earth elevation map which produced for aerospace electronic cameras is compressed and spliced. It can get elevation data from flash according to the shooting point of latitude and longitude. If elevation data between two data the ways of searching data uses linear interpolation. Linear interpolation can better meet the rugged mountains and hills changing requests. At last the deviant framework and camera controller are used to test the character of deviant angle errors TDI CCD camera simulation system with the material point corresponding to imaging point model is used to analyze the imaging's MTF and mutual correlation similarity measure simulation system use adding cumulation which TDI CCD imaging exceeded the corresponding pixel horizontal and vertical offset to simulate camera imaging when stability of satellite attitude changes. This process is practicality. It can effectively control the camera memory space and meet a very good precision TDI CCD camera in the request matches the speed of image motion and imaging. 2010 SPIE.