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Earth Observation Brain (EOB): an intelligent earth observation system 期刊论文
GEO-SPATIAL INFORMATION SCIENCE, 2017, 卷号: 20, 期号: 2
作者:  Li, Deren;  Wang, Mi;  Dong, Zhipeng;  Shen, Xin;  Shi, Lite
收藏  |  浏览/下载：1/0  |  提交时间：2019/12/05
The Ground Simulation of Spacecraft Discharge Impacts on the Space Environment Detectors 期刊论文
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2016, 卷号: 44, 期号: 7, 页码: 1247-1253
作者:  Wang, Jinlong;  Zhang, Zhenlong
收藏  |  浏览/下载：18/0  |  提交时间：2016/11/08
Space- and ground-based CO2 measurements: A review SCI/SSCI论文
2016
作者:  Yue T. X.;  Zhang, L. L.;  Zhao, M. W.;  Wang, Y. F.;  Wilson, J.
收藏  |  浏览/下载：35/0  |  提交时间：2016/12/16
Orbit improvement for Chang'E-5T lunar returning probe with GNSS technique 期刊论文
ADVANCES IN SPACE RESEARCH, 2015, 卷号: 56, 期号: 11, 页码: 2473-2482
作者:  Fan, Min;  Hu, XiaoGong;  Dong, Guangliang;  Huang, Yong;  Cao, Jianfeng
收藏  |  浏览/下载：62/0  |  提交时间：2016/01/14
Design of data communication and management system for ground test and verification devices of space laser communication 期刊论文
optik, 2014
Wang, Jianmin; Li, Fucai; Liu, Yudong; Fang, Yu
收藏  |  浏览/下载：5/0  |  提交时间：2015/11/10
Research on energy characteristics of aerospace relay mirror system (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
Liu C.; Zhong X.; Piao Y.; Jin G.
收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25
Aerospace Relay Mirror System (ARMS) as a new concept weapon used in reflection of High Energy Laser (HEL) in space is studied. It extends the attacking range of Ground Based Laser (GBL) weapons enormously. Relevant researches have been carried out for many years. The structures and operating theory of the entire system consists of ground-based high energy laser weapon and space-based relay mirror. The main work of this study is focused on the analysis of relay mirror energy characteristics to deduce the relationship among the attacking range of weapon and diameter of ARMS and target irradiance. Calculation examples are also given. The results proved the strong points and feasibility of ARMS theoretically further. It is summarized that more importance should be attached to ARMS development. The results given in this paper can be reference of an actual ARMS system to some extends. 2011 IEEE.  
Design of motion compensation mechanism of satellite remote sensing camera (EI CONFERENCE) 会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Gu S.; Yan Y.; Xu K.; Jin G.
收藏  |  浏览/下载：37/0  |  提交时间：2013/03/25
With the development of aerospace remote sensing technology  the ground resolution of remote sensing camera enhances continuously. Since there is relative motion between camera and ground target when taking pictures  the target image recorded in recording media is moved and blurred. In order to enhance the imaging quality and resolution of the camera  the image motion had to be compensated. In order to abate the effect of image motion to image quality of space camera and improve the resolution of the camera  the compensation method of image motion to space camera is researched. First  the reason of producing drift angle and adjustment principle are analyzed in this paper. This paper introduce the composition and transmission principle of image motion compensation mechanism. Second  the system adopts 80C31 as controller of drift angle  and adopts stepping motor for actuators  and adopts absolute photoelectric encoder as the drift Angle measuring element. Then the control mathematical model of the image motion compensation mechanism are deduced  and it achieve the closed-loop control of the drift angle position. At the last  this paper analyses the transmission precision of the mechanism. Through the experiment  we measured the actual precision of the image motion compensation mechanism  and compared with the theoretical analysis. There are two major contributions in this paper. First  the traditional image motion compensation mechanism is big volume and quality heavy. This has not fit for the development trend of space camera miniaturization and lightweight. But if reduce the volume and quality of mechanism  it will bring adverse effects for the precision and stiffness of mechanism. For this problem  This paper designed a image motion compensation that have some advantages such as small size  light weight at the same time  high precision  stiffness and so on. This image motion compensation can be applicable to the small optics cameras with high resolution. Second  the traditional mechanism control need to corrected  fitting and iterative for the control formula of mechanism. Only in this way  we can get the optimal control mathematical model. This paper has high precision of the control formula derived. It can achieve the high precision control without fitting  It also simplify the difficulty of control mathematical model establishment. This paper designed the range of adjusting of image motion compensation mechanism between -5 +5. Based on choosing-5  -4  -3  -2  -1  0  +1  +2  +3  +4  +4 as the expectation value of the imaginary drift angle  we get ten groups of the fact data in adjusting drift angle measured. The test results show that the precision of the drift angle control system can be achieved in 1. It can meet the system requirements that the precision of the control system is less than 3'  and it can achieve the high-precision image motion compensation. 2011 SPIE.  
Adaptive Wiener filtering with Gaussian fitted point spread function in image restoration (EI CONFERENCE) 会议论文
2011 IEEE 2nd International Conference on Software Engineering and Service Science, ICSESS 2011, July 15, 2011 - July 17, 2011, Beijing, China
Yang L.; Zhang X.; Ren J.
收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25
In the imaging process of the space remote sensing camera  there was degradation phenomenon in the acquired images. In order to reduce the image blur caused by the degradation  the remote sensing images were restored to give prominence to the characteristic objects in the images. First  the frequency-domain notch filter was adopted to remove strip noises in the images. Then using the ground characters with the knife-edge shape in the images  the point spread function of the imaging system was estimated. In order to improve the accuracy  the estimated point spread function was corrected with Gaussian fitting method. Finally  the images were restored using the adaptive Wiener filtering with the fitted point spread function. Experimental results of the real remote sensing images showed that almost all strip noises in the images were eliminated. After the denoised images were restored  its variance and its gray mean gradient increased  also its laplacian gradient increased. Restoration with Gaussian fitted point spread function is beneficial to interpreting and analyzing the remote sensing images. After restoration  the blur phenomenon of the images is reduced. The characters are highlighted  and the visual effect of the images is clearer. 2011 IEEE.  
Improved STAP algorithm based on APES 期刊论文
JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS, 2011, 卷号: 22, 期号: 3, 页码: 387-392
作者:  Zhang, Yan;  Zhang, Yunhua;  Gu, Xiang
收藏  |  浏览/下载：11/0  |  提交时间：2014/12/15
New approach for ground target location with precision analysis and simulation 期刊论文
2010, 2010
Yu Jia-xiang; Xiao De-yun; Qin Dong-xing; Wang De-hu
收藏  |  浏览/下载：4/0

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