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Seismicity of the northern section of the Tanlu fault zone in the Bohai Bay and its implications 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2020, 卷号: 63, 期号: 7, 页码: 2566-2578
作者:  
Chen Ying;  Liang XiaoFeng;  Yan HongFang;  Jiang MingMing;  Ai YinShuang
  |  收藏  |  浏览/下载:17/0  |  提交时间:2020/09/28
The kinematic characteristics of the 2016 M(w)7.8 offshore Sumatra, Indonesia earthquake 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2018, 卷号: 61, 期号: 3, 页码: 880-888
作者:  
Zhao Xu;  Yao Zhenxing
  |  收藏  |  浏览/下载:22/0  |  提交时间:2018/09/29
GPS Strain Rate and Seismic Activity Before the Ludian Earthquake (Ms 6.5), Northeast Yunnan, China: New Implications for Eastward Chuan-Dian Block Extrusion 期刊论文  OAI收割
TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES, 2016, 卷号: 27, 期号: 6, 页码: 837-851
作者:  
Su, Zhe;  Wang, Erchie;  Wang, Gang;  Fan, Chun
  |  收藏  |  浏览/下载:30/0  |  提交时间:2017/11/17
Numerical modeling of the current tectonic stress field in Taiwan strait and its adjacent regions 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2012, 卷号: 55, 期号: 7, 页码: 2307-2318
Yang, XQ; Shi, XB; Xu, HH
收藏  |  浏览/下载:24/0  |  提交时间:2013/08/28
Inspection focus technology of space tridimensional mapping camera based on astigmatic method (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Wang Z.;  Wang Z.;  Zhang L.;  Zhang L.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
The CCD plane of the space tridimensional mapping camera will be deviated from the focal plane(including the CCD plane deviated due to camera focal length changed)  under the condition of space environment and vibration  impact when satellite is launching  image resolution ratio will be descended because defocusing. For tridimensional mapping camera  principal point position and focal length variation of the camera affect positioning accuracy of ground target  conventional solution is under the condition of vacuum and focusing range  calibrate the position of CCD plane with code of photoelectric encoder  when the camera defocusing in orbit  the magnitude and direction of defocusing amount are obtained by photoelectric encoder  then the focusing mechanism driven by step motor to compensate defocusing amount of the CCD plane. For tridimensional mapping camera  under the condition of space environment and vibration  impact when satellite is launching  if the camera focal length changes  above focusing method has been meaningless. Thus  the measuring and focusing method was put forward based on astigmation  a quadrant detector was adopted to measure the astigmation caused by the deviation of the CCD plane  refer to calibrated relation between the CCD plane poison and the asrigmation  the deviation vector of the CCD plane can be obtained. This method includes all factors caused deviation of the CCD plane  experimental results show that the focusing resolution of mapping camera focusing mechanism based on astigmatic method can reach 0.25 m. 2010 Copyright SPIE - The International Society for Optical Engineering.