中国科学院机构知识库网格
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Relativistic solutions of anisotropic compact objects 期刊论文  OAI收割
ASTROPHYSICS AND SPACE SCIENCE, 2014, 卷号: 354, 期号: 2, 页码: 421-430
Paul, BC; Deb, R
收藏  |  浏览/下载:32/0  |  提交时间:2015/06/03
AUTONOMOUS INTEGRATED NAVIGATION USING X-RAY PULSARS AND ASTEROIDS 会议论文  OAI收割
63rd International Astronautical Congress 2012, IAC 2012, Naples, Italy, 2012
Yang Chengwei; Gao Dong; Zheng Jianhua
收藏  |  浏览/下载:39/0  |  提交时间:2014/04/30
To improve the navigation performance of the spacecraft during interplanetary cruise  a novel integrated navigation system is proposed. For X-ray pulsar navigation (XNAV) is a hot and prospective research subject  and the optical navigation using asteroids is practical in space engineering  we designed an autonomous navigation system using one X-ray detector and one navigation camera. The measurement models of the XNAV based on the time difference of arrival and the optical navigation based on the images of asteroids are presented. To enhance practicality  the X-ray pulsars and asteroids are observed by turns. The batch least square filter  used by Deep Space I  is adopted to estimate the system state. The numerical simulation results show that the integrated navigation is feasible on the interplanetary cruise orbit. Moreover  compared with the XNAV and the optical navigation  the integrated navigation system can provide higher navigation performance.  
State-space prediction of soil respiration time series in temperate, semi-arid grassland in northern China SCI/SSCI论文  OAI收割
2012
Jia X. X.; Shao M. A.; Wei X. R.
收藏  |  浏览/下载:24/0  |  提交时间:2012/09/04
Estimating total net primary productivity of managed grasslands by a state-space modeling approach in a small catchment on the Loess Plateau, China SCI/SSCI论文  OAI收割
2011
Jia X. X.; Shao M. G.; Wei X. R.; Horton R.; Li X. Z.
收藏  |  浏览/下载:25/0  |  提交时间:2012/06/08
面向智能空间的位置感知计算研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2009
作者:  
姚庆明
收藏  |  浏览/下载:65/0  |  提交时间:2015/09/02
evaluation of sat-based bounded model checking of actl properties 会议论文  OAI收割
1st IEEE/IFIP International Symposium on Theoretical Aspects of Softwave Engineering, Shanghai, PEOPLES R CHINA, JUN 06-08,
Xu Yanyan; Chen Wei; Xu Liang; Zhang Wenhui
  |  收藏  |  浏览/下载:19/0  |  提交时间:2011/06/29