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Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共13条,第1-10条 帮助

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ACWCD: Utilizing Inherent Transformers Information and Prior Knowledge for Weakly Supervised Change Detection 期刊论文  OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2025, 卷号: 63, 页码: 4402614
作者:  
Liu, Wenhao;  Yu, Zhuoyuan;  Luo, Bin
  |  收藏  |  浏览/下载:11/0  |  提交时间:2025/03/18
Evaluation of six global high-resolution global land cover products over China 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF DIGITAL EARTH, 2024, 卷号: 17, 期号: 1, 页码: 17
作者:  
Wang, Yiqi;  Xu, Yongming;  Xu, Xichen;  Jiang, Xingan;  Mo, Yaping
  |  收藏  |  浏览/下载:78/0  |  提交时间:2024/02/05
Compilation of 1:50,000 vegetation type map with remote sensing images based on mountain altitudinal belts of Taibai Mountain in the North-South transitional zone of China 期刊论文  OAI收割
JOURNAL OF GEOGRAPHICAL SCIENCES, 2020, 卷号: 30, 期号: 2, 页码: 267-280
作者:  
Yao, Yonghui;  Suonan, Dongzhu;  Zhang, Junyao
  |  收藏  |  浏览/下载:19/0  |  提交时间:2020/05/19
Compilation of 1:50,000 vegetation type map with remote sensing images based on mountain altitudinal belts of Taibai Mountain in the North-South transitional zone of China 期刊论文  OAI收割
JOURNAL OF GEOGRAPHICAL SCIENCES, 2020, 卷号: 30, 期号: 2, 页码: 267-280
作者:  
Yao, Yonghui;  Suonan, Dongzhu;  Zhang, Junyao
  |  收藏  |  浏览/下载:15/0  |  提交时间:2020/05/19
Evaluation of three-dimensional urban expansion: A case study of Yangzhou City, Jiangsu Province, China SCI/SSCI论文  OAI收割
2015
作者:  
Qin J.;  Fang, C. L.;  Wang, Y.;  Li, G. D.;  Wang, S. J.
收藏  |  浏览/下载:191/0  |  提交时间:2015/12/09
Estimation of evapotranspiration over the terrestrial ecosystems in China EI期刊论文  OAI收割
2014
作者:  
Yu Guirui
收藏  |  浏览/下载:26/0  |  提交时间:2014/12/31
Evapotranspiration analysis based on topography algorithm in the Yellow River Delta 会议论文  OAI收割
Remote Sensing and Modeling of Ecosystems for Sustainability X, San Diego, CA, United states, August 26, 2013 - August 29, 2013
Ning, Jicai(1); Gao, Zhiqiang(1,2); Shi, Runhe(2); Gao, Wei(2)
收藏  |  浏览/下载:40/0  |  提交时间:2015/08/10
Satellite-derived land surface temperature: Current status and perspectives SCI/SSCI论文  OAI收割
2013
作者:  
Wu H.
收藏  |  浏览/下载:39/0  |  提交时间:2014/12/24
Comparison of land surface temperatures from MSG-2/SEVIRI and Terra/MODIS SCI/SSCI论文  OAI收割
2012
作者:  
Wu H.
收藏  |  浏览/下载:24/0  |  提交时间:2014/12/25
Design of motion compensation mechanism of satellite remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
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:48/0  |  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.