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CAS IR Grid
机构
地理科学与资源研究所 [3]
长春光学精密机械与物... [1]
数学与系统科学研究院 [1]
武汉物理与数学研究所 [1]
武汉岩土力学研究所 [1]
采集方式
OAI收割 [7]
内容类型
期刊论文 [4]
会议论文 [2]
SCI/SSCI论文 [1]
发表日期
2010 [3]
2009 [1]
2008 [3]
学科主题
Geography [1]
Multidisci... [1]
Physical; ... [1]
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Gimbal displacement error analysis on an electro-optical seeker (EI CONFERENCE)
会议论文
OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者:
Zhang X.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
It is essential to analyze the gimbal displacement errors for a seeker due to the importance for cueing of targets and tracking for the final approach. Otherwise
for a seeker electro-driven with a concentric glass dome
the large errors will decrease the picking
pointing
and tracking precision rooted from the displacement errors existing between the rotation center of the optical system and the gimbal. And the gimbaled camera system displacement errors are never eliminated but reduced due to the geometric errors consists of geometric tolerances of gimbal structure
manufacture
installation and vibration coming from working environment. In this paper
the gimbal displacement errors in an electro-optically stabilized platform resulting from geometric errors and environment errors were analyzed and shown in detail. The mathematical modal of the gimbal displacement errors created based on multi-body dynamics demonstrated the connection between the gimbal displacement errors and the stabilized platform. Taking a visible light image seeker as a case
the diameter is 120mm
and the geometric tolerances came from the values of primary design and the vibration data came from the environmental vibration test on the pitch-yaw seeker
and at the same time
the errors resulting from installation were considered too. Based on calculating
the maximum gimbal displacement error will reach to 0.2mm for pitching angle smaller than 40 and yawing angle smaller than 60. However
the critical parts have been found out according to the probability theory and the reliability analysis successfully used in the paper
and finally
the maximum gimbal displacement error reduced to 0.1mm
which is acceptable corresponding to the picking
pointing and tracking precision for an optical imaging seeker. 2010 Copyright SPIE - The International Society for Optical Engineering.
On number-theoretic method in statistics simulation
期刊论文
OAI收割
SCIENCE CHINA-MATHEMATICS, 2010, 卷号: 53, 期号: 1, 页码: 179-186
作者:
Wang Yuan
;
Fang KaiTai
  |  
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2018/07/30
number-theoretic methods
statistical simulation
geometric probability
On Determination Of Geometric Damage Tensor
会议论文
OAI收割
Zhuhai, PEOPLES R CHINA, DEC 26-28, 2009
作者:
Liu, Bin
;
Liu, Quan-sheng
;
Wu, Yue-xiu
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2018/06/05
fractured rock mass
geometric damage tensor
measurement condition
probability
damage evolution equation
Unconventional Geometric Quantum Computation in a Dissipative Cavity QED System Without the Heating
期刊论文
OAI收割
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2009, 卷号: 48, 期号: 10, 页码: 2928-2937
作者:
Chen, Chang-Yong
;
Kang, Shuai
;
Feng, Mang
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2015/06/26
Geometric quantum phase gate
Fidelity
Success probability
Modelling raindrop impact and splash erosion processes within a spatial cell: a stochastic approach
期刊论文
OAI收割
EARTH SURFACE PROCESSES AND LANDFORMS, 2008, 卷号: 33, 期号: 5, 页码: 712-723
Ma Ting
;
Zhou Chenghu
;
Zhu Tongxin
;
Cai Qiangguo
收藏
  |  
浏览/下载:187/5
  |  
提交时间:2011/03/25
splash erosion
spatial cell
raindrop size distribution function
geometric probability
Modelling raindrop impact and splash erosion processes within a spatial cell: a stochastic approach
期刊论文
OAI收割
EARTH SURFACE PROCESSES AND LANDFORMS, 2008, 卷号: 33, 期号: 5, 页码: 712-723
作者:
Cai, Qiangguo
;
Ma, Ting
;
Zhou, Chenghu(周成虎)
收藏
  |  
浏览/下载:40/0
  |  
提交时间:2011/05/25
splash erosion
spatial cell
raindrop size distribution function
geometric probability
Modelling raindrop impact and splash erosion processes within a spatial cell: a stochastic approach
SCI/SSCI论文
OAI收割
2008
作者:
Ma T.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2012/06/08
splash erosion
spatial cell
raindrop size distribution function
geometric probability
size distribution
soil detachment