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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
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软件研究所 [3]
长春光学精密机械与物... [1]
计算机网络信息中心 [1]
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OAI收割 [4]
iSwitch采集 [1]
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期刊论文 [4]
会议论文 [1]
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2017 [1]
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2010 [2]
2009 [1]
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An efficient data processing framework for mining the massive trajectory of moving objects
期刊论文
iSwitch采集
Computers environment and urban systems, 2017, 卷号: 61, 页码: 129-140
作者:
Zhou, Yuanchun
;
Zhang, Yang
;
Ge, Yong
;
Xue, Zhenghua
;
Fu, Yanjie
收藏
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浏览/下载:240/0
  |  
提交时间:2019/05/09
Big data
Trajectory of moving object
Compression contribution model
Parallel linear referencing
Two step consistent hashing
Context-Based Moving Object Trajectory Uncertainty Reduction and Ranking in Road Network
期刊论文
OAI收割
JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY, 2016, 卷号: 31, 期号: 1, 页码: 167-184
Dai, J
;
Ding, ZM
;
Xu, JJ
  |  
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2016/12/13
moving object trajectory
uncertainty reduction
road network
context-aware information
Modulation transfer function in seeker camera limits resulting from missile flutter caused by aerodynamic force (EI CONFERENCE)
会议论文
OAI收割
2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China
作者:
Zhang X.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
The imaging quality of seeker in flight mode has been evaluated through analyzing the effects of missile flutter on optical modulation transfer function (MTF) of the optical system. Firstly the data of transverse vibration has been processed to eliminate the trend term caused by the trajectory
then obtained the displacement with two times trapezoidal integration. For the side rotation
the high frequency noise interference in the data has been filtered by using five-point moving average method. Took this model as the quivering rule between the object and the image
and then analyzed the effects of the transverse vibration and the side rotation on imaging quality through MTF. By calculation
the r.m.s value of the image motion caused by missile transverse vibration is 0.026mm
and the side rotation angle is 0.0044 . Through the establishment of two modulation transfer functions (MTF) of image random vibration and linear vibration
the results show that the image quality had declined
and the effect of transverse vibration on image quality is obvious. Through improving the rigidity of the missile and selection of small focal length optical system and shorten the time of exposure can improve the imaging quality of the seeker. 2010 IEEE.
基于路网的不确定性轨迹预测
期刊论文
OAI收割
计算机研究与发展, 2010, 卷号: 47, 期号: 1, 页码: 104-112
郭黎敏
;
丁治明
;
胡泽林
;
陈超
  |  
收藏
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浏览/下载:24/0
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提交时间:2010/08/19
移动对象
路网受限
不确定轨迹
轨迹模式
轨迹预测
moving object
network-constrained
uncertain trajectory
trajectory pattern
path prediction
网络受限移动对象过去、现在及将来位置的索引
期刊论文
OAI收割
软件学报, 2009, 卷号: 20, 期号: 12, 页码: 3193-3204
丁治明
;
李肖南
;
余波
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2010/08/19
移动对象
数据库
索引
时空轨迹
movingobject
database
index
spatial-temporaltrajectory moving object
database
index
spatial-temporal trajectory