中国科学院机构知识库网格
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Geocentric distance's errors' correction of space cameras based on USGS DEM (EI CONFERENCE) 会议论文  OAI收割
2011 IEEE 3rd International Conference on Communication Software and Networks, ICCSN 2011, May 27, 2011 - May 29, 2011, Xi'an, China
作者:  
Li W.;  Li W.;  Xu S.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
In order to correct the geocentric distance's error of TDI (Time Delay and Integration) CCD space camera in calculation of image motion compensation  the data source of the earth's height above sea level USGS DEM (United States Geological Survey Digital Elevation Model) has been introduced to make digital elevation map  the match error of the forward direction (the integral direction of TDI CCD) has been greatly decreased by correcting the geocentric distance error  and eliminate the influence to the relative error of image motion velocity  and correct the error generated by the different heights above sea level. After correcting  which greatly improves the imaging quality of TDI CCD space camera. 2011 IEEE.  a model of image motion calculation of nadir has been introduced  the calculation and analysis of the model shows that: the maximum error of image motion velocity about 1.72% has been decreased to 0.06%  and the influence of the geocentric distance error to the relative error of image motion velocity has been analyzed with the model  
Study on Photodissociation Dynamics of n-Pentyliodide Using Velocity Map Ion Imaging 期刊论文  OAI收割
ACTA PHYSICO-CHIMICA SINICA, 2009, 卷号: 25, 期号: 4, 页码: 661-667
作者:  
Zhang Yan;  Wang Jun;  Zheng Qiu-Sha;  Liu Yu-Zhu;  Zhang Rong-Rong
收藏  |  浏览/下载:24/0  |  提交时间:2015/06/26
Annular sub-aperture stitching interferometry for testing of large asphreical surfaces (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings, September 9, 2007 - September 12, 2007, Beijing, China
作者:  
Zheng L.-G.;  Zhang X.-J.;  Deng W.-J.;  Wang X.-K.
收藏  |  浏览/下载:78/0  |  提交时间:2013/03/25
Annular subaperture stitching interferometric technology can test large-aperture  and the PV and RMS of residual error of the full aperture phase distribution is 0.027 and 0.0023  high numerical aperture aspheric surfaces with high resolution  the relative error of PV and RMS is -0.53% and -0.31%  respectively. The results conclude that this splicing model and algorithm are accurate and feasible. So it provides another quantitive measurement for test aspheric surfaces especially for large aperture aspheres besides null-compensation.  low cost and high efficiency without auxiliary null optics. In this paper  the basic principle and theory of the stitching method are introduced  the reasonable mathematical model and effective splicing algorithm are established based on simultaneous least-squares method and Zernike polynomial fitting. The translation errors are eliminated from each subaperture through the synthetical optimization stitching mode  it keeps the error from transmitting and accumulating. The numerical simulations have been carried on by this method. As results  the surface map of the full aperture after stitching is consistent to the input surface map  the difference of PV error and RMS error between them is -0.0074 and -0.00052 ( is 632.8nm)  respectively  
A relative map filter using linear invariant measurements 会议论文  OAI收割
IEEE International Conference on Robotics and Biomimetics (ROBIO 2007), Sanya, China, December 15-18, 2007
作者:  
Sun RC(孙荣川);  Ma SG(马书根);  Li B(李斌);  Wang YC(王越超)
收藏  |  浏览/下载:16/0  |  提交时间:2012/06/06
Study on photodissociation dynamics of C8H17Br by velocity map ion imaging 期刊论文  OAI收割
ACTA PHYSICO-CHIMICA SINICA, 2006, 卷号: 22, 期号: 4, 页码: 460-464
作者:  
Zheng, QS;  Tang, Y;  Zhu, RS;  Wei, ZR;  Zhang, B
收藏  |  浏览/下载:30/0  |  提交时间:2015/07/22