中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Stress analysis of full-length grouted bolt under shear deformation of anchor interface 期刊论文  OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2022, 卷号: 19, 期号: 11, 页码: 3286
作者:  
Zhu Zheng-de;  Shu Xiao-yun;  Li Zhe;  Tian Hong-ming;  Tian Yun
  |  收藏  |  浏览/下载:17/0  |  提交时间:2023/08/02
Improving nonlinear performance of the HEPS baseline design with a genetic algorithm 期刊论文  OAI收割
CHINESE PHYSICS C, 2016, 卷号: 40, 期号: 7
作者:  
Jiao Y(焦毅);  Jiao, Y
  |  收藏  |  浏览/下载:28/0  |  提交时间:2017/07/25
Aircraft orientation error correction based on image aided navigation paper (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Tao Z.; Yang L.-M.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
In allusion to the character of aircraft orientation error in inertial navigation system increasing with its working time and error accumulation  airborne image aided navigation system is imported in inertial navigation system to combine integrated navigation system. To acquire high orientation accuracy and high matching speed a new algorithm based on multi-scale edge detection and generalized point theory is put forward. At first multi-scale edge detection algorithm is adopted to realize airborne image edge detection  then image matching algorithm is used based on generalized point theory is used to eliminate error accumulation of peg-top excursion and accelerometer error to correction aircraft aircraft pose error to increase navigation accuracy of aircraft. To prove the algorithm is effective and robust  simulative experiment is done. The simulative experiment indicated that aircraft orientation accuracy is better than inertial navigation system  and its orientation error is less than 15 meters after airborne image aided navigation correction. 2010 IEEE.  
Development and radiance calibration of three-waveband camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photonics and Optoelectronics, SOPO 2010, June 19, 2010 - June 21, 2010, Chengdu, China
作者:  
Wang J.;  Liu Y.;  Liu Y.;  Sun Q.;  Liu Y.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
An imaging system with three-waveband sharing one lens and an area CCD was developed. By rotating different filters into the beam path  the required waveband was selected. The optical system which can image in ultraviolet  visible and near infrared region was designed and the signal collecting system was integrated. The optical design and system integration have some advantages such as low cost  small size and light in weight. To obtain a high imaging quality  the radiation calibration is carried out in order to establish the relation between the average grey level of output image and the input radiance from the integrating sphere. According to the calibration data in experiments  the radiation dynamic range and the best working point of the system are determined. The experiment result shows that the dynamic range of the image system is maximal when the exposure time is 8ms in ultraviolet  0.5ms in visible and 0.125ms in near infrared region. 2010 IEEE.  
Some studies on increasing the luminosity of BEPC II 期刊论文  OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2007, 卷号: 31, 期号: 2, 页码: #REF!
作者:  
Sun YP(孙一鹏);  Gao J(高杰);  Sun, YP;  Gao, J
收藏  |  浏览/下载:15/0  |  提交时间:2016/04/12