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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
地理科学与资源研究所 [1]
长春光学精密机械与物... [1]
寒区旱区环境与工程研... [1]
遥感与数字地球研究所 [1]
南京天文光学技术研究... [1]
云南天文台 [1]
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OAI收割 [5]
iSwitch采集 [1]
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会议论文 [3]
期刊论文 [3]
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2025 [1]
2015 [1]
2008 [1]
2006 [1]
2005 [2]
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Astronomy ... [1]
天文望远镜 [1]
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Satellite tracking data reveal the underestimate population size of the ground survey
期刊论文
OAI收割
BIODIVERSITY AND CONSERVATION, 2025, 卷号: N/A
作者:
Chenxi, Wang
;
Shaoxia, Xia
;
Xiubo, Yu
;
Li, Wen
  |  
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2025/03/18
Poyang Lake
Wintering geese
Satellite tracking
Ground survey
Missing areas
Population underestimation
Optimal selection of GCPs from Global Land Survey 2005 for precision geometric correction of Landsat-8 imagery
期刊论文
OAI收割
EUROPEAN JOURNAL OF REMOTE SENSING, 2015, 卷号: 48
作者:
Li, Shanshan
;
Peng, Man
;
Wu, Changshan
;
Feng, Xuxiang
;
Wu, Yeiwei
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2016/04/20
Landsat-8
ground control points (GCPs)
Global Land Survey 2005
precision geometric correction
The ELT situation in China
会议论文
OAI收割
Retirement Symposium for Arne Ardeberg on Extremely Large Telescopes - Which Wavelengths, Lund, SWEDEN, 2007-11-29
作者:
Liu Z(刘忠)
;
Cui, XQ
;
Liu Z(刘忠)
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2016/04/06
Extremely Large Telescope
ground based
segment
ring aperture
Interferometric Telescope
active
optics
adaptive optics
spherical mirror
site survey
Dome A
Present and future Chinese large telescope projects
会议论文
OAI收割
Cape Town, South Africa, 2005-11-14
作者:
Xiangqun Cui
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2013/12/24
Large ground based telescope
Space telescope
Site survey
Using ground-penetrating radar to detect permafrost degradation in the northern limit of permafrost on the Tibetan Plateau
期刊论文
iSwitch采集
COLD REGIONS SCIENCE AND TECHNOLOGY, 2005, 卷号: 41, 期号: 3, 页码: 211-219
作者:
Wu, TH
;
Li, SX
;
Cheng, GD
;
Nan, ZT
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2019/10/08
permafrost degradation
ground-penetrating radar survey
Tibetan Plateau
climatic warming
Error analysis and test study of fiber optic gyroscope north-finder (EI CONFERENCE)
会议论文
OAI收割
Advanced Sensor Systems and Applications II, November 8, 2004 - November 12, 2004, Beijing, China
Zhang Z.
;
Sun J.
;
Wu K.
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2013/03/25
North-finder system is an important application of the inertial technology. It provides true north azimuth information to f all kinds of ground-based equipment. This paper designed a dynamic automatic north-finder based on the modulation output of fiber optic gyroscope (FOG). In this scheme
the sine output signal of the FOG was sampled and disposed
and then the real north of surveyed point on the surface of earth was calculated. The deviation caused by the base tilt was compensated by an accelerator. The output signals of FOG and accelerator were computed combined with the position sampled from increasing encoder by digital signal processor. Successive rotating technique was adopted to modulate the FOG signal periodically. Most of the low frequency part of random gyro drift errors was compensated. The north-finder accuracy was improved compared with the traditional static measuring method. The test result shows the FOG automatic north-finder obtains 2' true north angle accuracies within not more than three minutes
can meet the orientation need of artillery
terrain measurement vehicle
armored car
unmanned drive vehicle
geodetic survey and tunnel exploration.