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Chinese Academy of Sciences Institutional Repositories Grid
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An extreme ultraviolet spectrometer working at 10-130 angstrom for tungsten spectra observation with high spectral resolution and fast-time response in Experimental Advanced Superconducting Tokamak 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2021, 卷号: 1010
作者:  
Xu, Zong;  Zhang, Ling;  Cheng, Yunxin;  Morita, Shigeru;  Li, Lei
  |  收藏  |  浏览/下载:48/0  |  提交时间:2021/08/31
Long-term sub second-response monitoring of gaseous ammonia in ambient air by positive inhaling ion mobility spectrometry 期刊论文  OAI收割
TALANTA, 2017, 卷号: 175, 页码: 522-527
作者:  
Li, Hang;  Wang, Weiguo;  Chen, Chuang;  Li, Haiyang;  Peng, Liying
收藏  |  浏览/下载:24/0  |  提交时间:2017/12/20
Long-term sub second-response monitoring of gaseous ammonia in ambient air by positive inhaling ion mobility spectrometry 期刊论文  OAI收割
TALANTA, 2017, 卷号: 175, 页码: 522-527
作者:  
Hou, Keyong;  Huang, Wei;  Wang, Weiguo;  Chen, Chuang;  Li, Mei
收藏  |  浏览/下载:41/0  |  提交时间:2017/12/20
Long-term sub second-response monitoring of gaseous ammonia in ambient air by positive inhaling ion mobility spectrometry 期刊论文  OAI收割
TALANTA, 2017, 卷号: 175, 页码: 522-527
作者:  
Huang, Wei;  Wang, Weiguo;  Chen, Chuang;  Li, Mei;  Peng, Liying
  |  收藏  |  浏览/下载:23/0  |  提交时间:2018/08/16
Mythen detector for X-ray diffraction at the Beijing synchrotron radiation facility 期刊论文  OAI收割
INSTRUMENTATION SCIENCE AND TECHNOLOGY, 2015, 卷号: 44, 期号: 1, 页码: 1-11
作者:  
Du R(杜蓉);  Cai Q(蔡泉);  Chen ZJ(陈中军);  Gong Y(宫宇);  Wu ZH(吴忠华)
收藏  |  浏览/下载:29/0  |  提交时间:2016/04/18
Research of ballistic missile early warning system (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Advanced Engineering Materials and Technology, AEMT 2012, July 6, 2012 - July 8, 2012, Zhuhai, China
Zhang M.-H.; Zhang Y.-Y.
收藏  |  浏览/下载:34/0  |  提交时间:2013/03/25
To develop a lift early warning infrared device  as a part of land or boat (ship) early warning system  the system has the ability to target pre-discovery and instructions invasion. Methods: In support of distant air situation  alerts the enemy aircraft  missiles and other long-range goals  obtain the target type and preliminary judgment of grade  deliver the alarm information to the command system. The infrared alarm device detects the target's own infrared radiation passively  alarms the incoming targets at low altitude and low altitude remote  when radar and other equipment is out of work. Results: The accuracy of entire system reached 20 according the analysis. Conclusions: The device has a full range of complex background  with high sensitivity  high resolution  anti-jamming  fast response time and other characteristics. (2012) Trans Tech Publications  Switzerland.  
Method of auto multi-exposure for high dynamic range imaging (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
Piao Y.; Xu W.
收藏  |  浏览/下载:20/0  |  提交时间:2013/03/25
This paper proposes a method for calculating the multi-exposure times fast and accurately when the scene has a high dynamic range  minimizing the pictures needed to take and improving the dynamic range of the CCD system. The proposed method first measures the camera's response function referring [10]. After that the median value of the output picture is adjusted to be in the middle range of the system output by changing the exposure time. It can be inferred from the histogram of the current picture whether it's a high dynamic range scene by calculating the number of pixels under exposed and over exposed. Once again the under and over exposed pixels are adjusted to be in the middle according to the camera's response function. Finally different exposed pictures (2 or 3) are fused together by Gaussian function and the dynamic range is compressed by y correction. Experimental results on UNIQ-UM400 analog camera and a digital acquisition system show that the algorithm works well and solve the problem of low dynamic range of CCD camera. 2010 IEEE.