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The method of the system error modification of photoelectric theodolite of T type (EI CONFERENCE) 会议论文
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
Zhao L.; Zhu W.; Zhang Y.; Sun J.
收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25
Analyzing land cover changes influenced by topographic factors based on technologies of RS and GIS - A case study of Yuli county of Xinjiang 会议论文
3rd International Symposium on Artificial Intelligence, JSAI-isAI 2011, Takamatsu, Japan, December 1, 2011 - November 2, 2012
作者:  Wang, Qianfeng;  Zhou, Kefa;  Sun, Li;  Qin, Yanfang;  Li, Guangyu
收藏  |  浏览/下载：6/0  |  提交时间：2017/01/18
Efficient Data-Parallel Algorithm for Elevation Color Generation in Terrain Rendering 会议论文
作者:  Zhou, Zhengkang;  Wang, Jian;  Zhao, Huacheng
收藏  |  浏览/下载：1/0  |  提交时间：2019/12/10
The Establishment of Geodetic Datum in Jiaonan City 会议论文
作者:  Huang, Jun;  Xing, Zhaobo;  Fang, Xueling;  Wang, Debao
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/05
Geocentric distance's errors' correction of space cameras based on USGS DEM (EI CONFERENCE) 会议论文
2011 IEEE 3rd International Conference on Communication Software and Networks, ICCSN 2011, May 27, 2011 - May 29, 2011, Xi'an, China
Yan D.; Xu S.; Li W.
收藏  |  浏览/下载：15/0  |  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  
Non-linear compensation algorithm of LOS locating in aerial remote sensor (EI CONFERENCE) 会议论文
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Li J.; Xiu J.; Huang P.; Li Y.; Chen L.
收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25
A non-linear light-of-sight(LOS) locating compensation algorithm for certain aerial remote sensor is presented in this paper. The LOS locating system is composed of two main components  which are an inertial reference frame to provide coarse LOS locating and a 2-axis Fast Steering Mirror to remove the frame's residual error. The azimuth and elevation of LOS are both affected by the FSM two-degree-of-freedom rotation  which should be dealt with to raise the accuracy of LOS location. This paper extrapolates LOS locating algorithm of FSM by coordinate transformation  and gives corresponding deviation analysis for different LOS poiting angles. It is found that the angle deviation grows rapidly with range of FSM's travel enlarging  so the deviation must be eliminated. Through the data analysis for deviation  a non-linear compensation algorithm is proved effective to reduce the error of LOS significantly. Taking LOS changing in [-3 deg  3 deg] as an example  two analytic expressions are given  and the LOS locating accuracy rises by 34 times compared with non-linear compensation unused  and the cross coupling of LOS loating is 0.08%. 2011 IEEE.  
Clear sky Net Surface Radiative Fluxes over Rugged Terrain from Satellite Measurements 会议论文
2011 Ieee International Geoscience and Remote Sensing Symposium, New York
Wang, Tianxing; Yan, Guangjian; Mu, Xihan; Chen, Ling
收藏  |  浏览/下载：14/0  |  提交时间：2014/12/07
Building Outline Detection based on Height and Intensity information of Airborne Laser Scanning Data 会议论文
Mippr 2011: Multispectral Image Acquisition, Processing, and Analysis
Wang Chengyi; Liang Fuyuan; Zhengyi
收藏  |  浏览/下载：16/0  |  提交时间：2014/12/07
The Qinghai-Tibet Movement Deformation Analysis of Space-time Block Based on GPS Data 会议论文
2nd China Satellite Navigation Conference (CSNC 2011), MAY 18-20, 2011
作者:  Nie, Renqi;  Zhang, Chuanyin;  Bei, Jinzhong;  Li, Weiwei
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/31
Research of error correction of LEO satellite orbit prediction for vehicle-borne tracking and position device (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 P.-L.; Guo L.-H.; Wang J.-J.
收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25
Vehicle-borne tracking and position device is used to track LEO satellite. Because of the absence of the target which might be caused by cloud or zenith blind zone  the forecasting data will be used to acquire the target. While orbit prediction has serious errors  the target is always missed. Meanwhile  in its application to the vehicle-borne tracking and position device  due to the base of instability in the tracking process  it will result in significant difference between predicting data and tracking data  so the target will be not tracked rapidly. We applied tracking data to predict satellite orbits by improving Laplace method  and then corrected the error between Predicted data and actual measured data by interpolation method of Lagrange which improves the accuracy of prediction values. The testing data shows the accuracy of predicted data ranging from 3' to 10" for both azimuth and elevation when extrapolated satellite orbit to 7 seconds time. 2010 IEEE.  

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