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14条,第1-10条 帮助

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A novel stop-and-go kinematic positioning method for PPP-RTK 期刊论文  OAI收割
GEO-SPATIAL INFORMATION SCIENCE, 2024, 页码: 14
作者:  
Wang, Siyao;  Tu, Rui;  Hong, Ju;  Lu, Xiaochun
  |  收藏  |  浏览/下载:19/0  |  提交时间:2025/04/03
Equalizing the spatial accessibility of emergency medical services in Shanghai: A trade-off perspective 期刊论文  OAI收割
COMPUTERS ENVIRONMENT AND URBAN SYSTEMS, 2022, 卷号: 92, 页码: 12
作者:  
Li, Mengya;  Wang, Fahui;  Kwan, Mei-Po;  Chen, Jie;  Wang, Jun
  |  收藏  |  浏览/下载:36/0  |  提交时间:2022/09/21
Influence of Temperature Inertia on Thermal Radiation Directionality Modeling Based on Geometric Optical Model 期刊论文  OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2020, 卷号: 58, 期号: 5, 页码: 3445-3457
作者:  
Lu, Xiangyang;  Tang, Bo-Hui;  Li, Zhao-Liang;  Rasmussen, Mads Olander
  |  收藏  |  浏览/下载:36/0  |  提交时间:2021/03/23
Influence of Temperature Inertia on Thermal Radiation Directionality Modeling Based on Geometric Optical Model 期刊论文  OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2020, 卷号: 58, 期号: 5, 页码: 3445-3457
作者:  
Lu, Xiangyang;  Tang, Bo-Hui;  Li, Zhao-Liang;  Rasmussen, Mads Olander
  |  收藏  |  浏览/下载:25/0  |  提交时间:2021/03/23
Application of dynamic zone flamelet model to a GH2/GO2 rocket combustor 会议论文  OAI收割
Indianapolis, IN, United states, August 19, 2019 - August 22, 2019
作者:  
Yao W(姚卫);  Li B(李波)
  |  收藏  |  浏览/下载:27/0  |  提交时间:2020/11/20
"stop-and-go" error analysis of geosynchronous sar 期刊论文  iSwitch采集
Science china-information sciences, 2016, 卷号: 59, 期号: 6, 页码: 12
作者:  
Tian, Yurun;  Guo, Shenglong;  Yu, Weidong
收藏  |  浏览/下载:29/0  |  提交时间:2019/05/09
Folding Mechanisms of Trefoil Knot Proteins Studied by Molecular Dynamics Simulations and Go-model 期刊论文  OAI收割
advance in structural bioinformatics, 2015, 卷号: 827, 页码: 93-110
作者:  
Wu, Xue;  Xu, Peijun;  Wang, Jinguang;  Xu, Yong;  Fu, Ting
收藏  |  浏览/下载:57/0  |  提交时间:2015/11/17
Theoretical Studies on the Folding Mechanisms for Different DNA G-quadruplexes 期刊论文  OAI收割
advance in structural bioinformatics, 2015, 卷号: 827, 页码: 123-141
作者:  
Wu, Xue;  Xu, Peijun;  Wang, Jinguang;  Xu, Yong;  Fu, Ting
收藏  |  浏览/下载:32/0  |  提交时间:2015/11/17
COMPARING FOLDING MECHANISMS OF DIFFERENT PRION PROTEINS BY G(o)over-bar MODEL 期刊论文  OAI收割
journal of theoretical & computational chemistry, 2013, 卷号: 12, 期号: 8
作者:  
Wu, Xue;  Fu, Ting;  Xiu, Zhi-Long;  Yin, Liu;  Wang, Jin-Guang
收藏  |  浏览/下载:44/0  |  提交时间:2015/11/09
Analysis of zenith pass problem in a roll-pitch optics seeker (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China
作者:  
Jiang H.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
There are mainly two kind of structures for a missile two-axes seeker  which is always mentioned as elevate-azimuth and roll-pitch. The elevate-azimuth structured seeker has been studied for a long time  and it is applied in all sort of missiles. Not only structure design but also control algorithm of the elevate-azimuth seeker are deeply developed. But for elevate-azimuth seeker there are several disadvantages such as big size and large abaxial angle blind. So the elevate-azimuth seeker gimbal angle is designed up to 65 according to relative references. In modern air war  it is important for a missile to have the ability of "first recognize" and "first attack". That means the air to air missile seeker is required to be a system with large gimbal angle and large abaxial launch angle. With the mentioned requirement  roll-pitch seeker with its advantages smart size and large gimbal angle is studied widely and deeply. The pitch angle of roll-pitch is up to 90 while its roll angle up to n 360. But there are also some disadvantages for the roll-pitch seeker  the most troublesome one is the zenith pass problem. The zenith pass problem is brought about from the gimbal kinematics  it is said that when target moves in the center of image plane  roll servo command gotten from the kinematics algorithm will go to infinite. Math model of zenith pass problem is proposed in this paper and two ways to solve the problem are brought forward. 2011 IEEE.