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GaSe damage threshold under IR pulse pumping 会议论文
XIX International Symposium on High-Power Laser Systems and Applications 2012, September 10, 2012 - September 14, 2012, Istanbul, Turkey
Guo J.; Xie J.-J.; Zhang L.; Chen F.; Jiang K.; Alexeev S. V.; Andreev Y. M.; Kokh K. A.; Lanskii G. V.; Losev V. F.; Lubenko D. M.; Shaiduko A. V.; Svetlichnyi V. A.
收藏  |  浏览/下载：12/0  |  提交时间：2014/05/15
The approximate calculation of atmospheric path radiance in close range and horizontal direction 会议论文
2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China, December 26, 2012 - December 27, 2012
Chang S.; Zhao N.; Sun Z.; Zhang Y.; Chen Y.
收藏  |  浏览/下载：10/0  |  提交时间：2014/05/15
The approximate calculation of atmospheric path radiance in close range and horizontal direction (EI CONFERENCE) 会议论文
2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China
Chang S.; Zhao N.; Sun Z.; Zhang Y.; Chen Y.
收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25
Atmospheric path radiance is the key factor in the accuracy of objective radiation measurement. In the traditional radiation character measurements  it is compared with the results of MODTRAN and measurement in experiment. It is revealed that the accuracy of software is 7.8%  under the help of the atmospheric observation equipment  and the formula is 4.9%  MODTRAN and other software likewise  which could demonstrate the validity of the pproximate calculation formula in close range and horizontal direction. In this article  the indeterminacy rate could be around 10~20%  in the process of deducing and experiment  it is highly restricts the measurement accuracy of objective radiation. For this reason  the validity of the approximate calculation formula in close range and horizontal direction is fully proved  it is quite significant to develop the study of measure and calculation in path radiance. The approximate calculation formula for path radiance in close range and horizontal direction is expressed in this article  which supply a new method in approximate calculation of path radiance for objective radiation measurement. (2013) Trans Tech Publications  Switzerland.  
High gain avalanche photodiode (APD) arrays in flow cytometer opitical system (EI CONFERENCE) 会议论文
2nd International Conference on Multimedia Technology, ICMT 2011, July 26, 2011 - July 28, 2011, Hangzhou, China
Zhao S.; Wu X.; Chen Y.; Wang C.; Tang Y.
收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25
Design and analysis of auto-focus assembly for spaceborne remote sensing camera (EI CONFERENCE) 会议论文
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
Chen W.; Ding Y.; Hui S.; Gao X.
收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25
Spaceborne remote sensing camera may be out of focus when the environment and photographic distance changes. In order to get higher ground sampled distance for the camera  based on the experience gained from the development of a remote sensing camera  working principle of auto-focus assembly control system was discussed. Time of waveform extraction was reduced. It sets force an auto-focus assembly that uses cam and line guide rail in order to move the lens group. The motion error of the auto-focus assembly was difficult to be eliminated and would affect on the focusing accuracy of the spaceborne remote sensing camera directly. So it was analyzed at both ends of the focusing structure. The CCD detector can keep stable when the remote sensing camera is imaging. The motion error was tested to verify the validity of the simulation result and it is less than 0.01mm. Its accuracy meets using demand. The focusing method of moving focal plane is suitable for spaceborne remote sensing camera. 2011 IEEE.  
Design and test of pointing mirror assembly for spaceborne remote sensing camera (EI CONFERENCE) 会议论文
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
Chen W.; Ding Y.; Hui S.
收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25
In order to ensure the surface figure of the pointing mirror (460mm long  290mm wide) in spaceborne remote sensing camera  Silicon Carbide was selected as the mirror material. The form of composite triangular and rectangular and the combination of open and closed back was explored in the lightweight design. A new kinematic mount and flexible structure in axis is used to hold the mirror around the lateral surface. The structure can minimize distortions induced by coefficient of thermal expansion mismatch among the materials. This eliminates the bending of the integral mount under the weight of the mirror. Optical performance of the mirror was analyzed under gravity load and temperature load using finite element method. Predicted surface figure error based on the removal of bias  tilt and power was calculated using an in-house Matlab script for mirrors. The pointing mirror assembly was tested using open loop servo control. And the surface figure was checked using interferometer. Surface figure accuracy is better than 1/30 ( 632.8nm  rms). The results show that the kinematic mount induces minimal figure error on the optical surface. 2011 IEEE.  
Design and Analysis of Auto-focus Assembly for Spaceborne Remote Sensing Camera 会议论文
2011
Chen W.; Ding Y. L.; Hui S. W.; Gao X.; Ieee
收藏  |  浏览/下载：8/0  |  提交时间：2013/03/28
Design and Test of Pointing Mirror Assembly for Spaceborne Remote Sensing Camera 会议论文
2011
Chen W.; Ding Y. L.; Hui S. W.; Ieee
收藏  |  浏览/下载：5/0  |  提交时间：2013/03/28
Design of Wide Stop-Band and Narrow Pass-Band Filters 会议论文
2010
Zhu H. X.; Gao J. S.; Feng X. G.; Zhao J. L.; Liang F. C.; Wang Y. S.; Chen X.
收藏  |  浏览/下载：7/0  |  提交时间：2013/03/28
Design of high precision star image locating method used in star sensor technology (EI CONFERENCE) 会议论文
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Zhang S.; Sun H.; Wang Y.; Jia X.; Chen H.
收藏  |  浏览/下载：50/0  |  提交时间：2013/03/25
Nowadays star sensor technology used in aircraft attitude measurement has become more and more popular for its high precision  light weight  without attitude accumulation errors and other advantages. In order to enhance the accuracy of star sensor  it is critical to make efforts to promote the precision of star image locating. High precision star image locating method mentioned in this article includes two aspects. One is sub-pixel dividing algorithm used to acquire the coordinate of stars. The other one is imaging calibration method used to weaken the effect caused by imaging distortion. This method is finally realized in some type of star sensor system. Then an experiment is designed to verify the precision of the method. The result of the experiment shows that the precision of the method is 2" in the experimental environment. 2010 IEEE.  

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