中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Oceanic internal wave amplitude retrieval from satellite images based on a data-driven transfer learning model 期刊论文  OAI收割
REMOTE SENSING OF ENVIRONMENT, 2022, 卷号: 272, 页码: 15
作者:  
Zhang, Xudong;  Wang, Haoyu;  Wang, Shuo;  Liu, Yanliang;  Yu, Weidong
  |  收藏  |  浏览/下载:64/0  |  提交时间:2022/04/12
Development and application of bunch-by-bunch measurement system for BEPC II storage ring 期刊论文  OAI收割
HIGH POWER LASER AND PARTICLE BEAMS, 2015, 卷号: 27, 期号: 6, 页码: 65102
作者:  
Deng QY(邓庆勇);  Cao JS(曹建社);  Zhang Y(张源);  Yue JH(岳军会);  He J(何俊)
收藏  |  浏览/下载:21/0  |  提交时间:2016/04/18
High-Accuracy Amplitude and Phase Measurements for Low-Level RF Systems 期刊论文  OAI收割
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2012, 卷号: 61, 期号: 4, 页码: 912-921
作者:  
Wang, Z;  Mao, LH;  刘熔; Liu, R
收藏  |  浏览/下载:23/0  |  提交时间:2016/04/08
Optical axis stabilization of semi-strapdown seeker based on disturbance observer (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China
Sun G.; Zhu M.; Yin S.; Jia H.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
Based on the kinematics of semi-strapdown seeker  the framework coordinate of the seeker is established. The optical axis stability equation of semi-strapdown seeker is deduced by using attitude transformation matrix. Then  the stability control principle block diagram of semi-strapdown seeker is shown based on the stability equation. The main factors that influence the stabilization precision are pointed out  such as friction disturbance  velocity-measuring noise and missile disturbance. In order to improve the stabilization precision  disturbance observer was proposed in semi-strapdown seeker stability control. The low frequency external disturbance and high frequency velocity measurement noise are effectively restrained by the disturbance observer as shown in hardware-in-loop simulation  and optical axis stabilization precision is improved nearly 20 times and 5 times due to two different frequencies with same amplitude. 2011 IEEE.