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长春光学精密机械与物... [6]
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会议论文 [6]
发表日期
2013 [6]
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发表日期:2013
专题:长春光学精密机械与物理研究所
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Reentry guidance based on parametric optimization (EI CONFERENCE)
会议论文
2012 International Conference on Mechatronics and Control Engineering, ICMCE 2012, November 29, 2012 - November 30, 2012, Guangzhou, China
Li D.
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浏览/下载:148/0
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提交时间:2013/03/25
This paper presents a parametric optimization approach to solve reentry guidance. Due to the various constraints imposed on the trajectory
original guidance problem can be converted into an optimal control problem with a merit function to be minimized. Direct implementation of method of variation and is too complex to get a reasonable result
while a numerical parametric optimization approach is feasible and efficient if we choose appropriate control variables as the optimization parameters and effective optimization algorithm. A simulation of the approach is performed to show its validity on reentry guidance problem: as the value of merit function converges to acceptable threshold
all constraints are hold. (2013) Trans Tech Publications
Switzerland.
Weighted data fusion algorithm in the application of visual measurement network system (EI CONFERENCE)
会议论文
2012 International Conference on Mechatronics and Control Engineering, ICMCE 2012, November 29, 2012 - November 30, 2012, Guangzhou, China
Zhou J.
;
Huang D.-y.
;
Li S.-j.
;
Chen X.-l.
;
Zhang Y.-c.
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浏览/下载:21/0
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提交时间:2013/03/25
For the problem on the deviation of actual measurement values between different network positions of visual measurement network system
so present the weighted data fusion algorithm. To distribute the weight coefficients according to the stability of eigenvector and fuse the coordinates
finally get the ultimate expression of fusion estimate. The experiment results present the maximum absolute tolerance of the fusion results is 0.039mm via the weighted data fusion algorithm
the maximum one via traditional data fusion algorithm of the center of point set is 0.056mm
Repeatedly measure 50 times
compared with the traditional algorithm
proposed weighted data fusion algorithm has much better precision and better stability. (2013) Trans Tech Publications
Switzerland.
Data normalization of single camera visual measurement network system
会议论文
2012 International Conference on Information Technology and Management Innovation, ICITMI 2012, November 10, 2012 - November 11, 2012, Guangzhou, China
Zhou J.
;
Li S.-J.
;
Huang D.-Y.
;
Chen X.-L.
;
Zhang Y.-C.
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  |  
浏览/下载:9/0
  |  
提交时间:2014/05/15
Weighted data fusion algorithm in the application of visual measurement network system
会议论文
2012 International Conference on Mechatronics and Control Engineering, ICMCE 2012, November 29, 2012 - November 30, 2012, Guangzhou, China
Zhou J.
;
Huang D.-y.
;
Li S.-j.
;
Chen X.-l.
;
Zhang Y.-c.
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2014/05/15
Data normalization of single camera visual measurement network system (EI CONFERENCE)
会议论文
2012 International Conference on Information Technology and Management Innovation, ICITMI 2012, November 10, 2012 - November 11, 2012, Guangzhou, China
Zhou J.
;
Li S.-J.
;
Huang D.-Y.
;
Chen X.-L.
;
Zhang Y.-C.
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2013/03/25
With the development of visual measurement system
Normalize the measured coordinates into the same world coordinate system
Apply in the three coordinate measuring machine(CMM) to have the simulation experiment
So the data normalization has the advantage of more high precision. (2013) Trans Tech Publications
the visual measurement system of single camera which applied in the imaging theory of optical feature points
then get the global data
the result indicates that the maximum absolute tolerance between the normalization coordinates via the center of point set and the ones measured by CMM directly is 0.058mm
Switzerland.
it has been widespread used in the modern production. Due to the limit of the environment in scene
and achieve the overall measurement
the visual measurement system of single camera could not measure the shield between the measured objects each other. Focus on this problem
But the one between the coordinate repeatedly measured at the position of one network control point is 0.066mm
present a kind of the the knowledge of measurement network based on the visual measurement of single camera
set up the measurement network system via the multi-control points. Measure the optical feature points in every network control point via the visual measurement system of single camera
Reentry guidance based on parametric optimization
会议论文
2012 International Conference on Mechatronics and Control Engineering, ICMCE 2012, November 29, 2012 - November 30, 2012, Guangzhou, China
Li D.
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  |  
浏览/下载:10/0
  |  
提交时间:2014/05/15
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