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清华大学 [2]
湖南大学 [2]
长春光学精密机械与物... [1]
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Block-sparse compressed sensing: non-convex model and iterative re-weighted algorithm
期刊论文
Inverse Problems in Science and Engineering, 2013, 卷号: Vol.21 No.1, 页码: 141-154
作者:
Yin, HT
;
Li, ST
;
Fang, LY
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浏览/下载:3/0
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提交时间:2020/01/05
block-sparse compressed sensing
non-convex model
block-sparse recovery
iterative re-weighted algorithm
Restoring force and dynamic loadings identification for a nonlinear chain-like structure with partially unknown excitations
期刊论文
Nonlinear Dynamics, 2012, 卷号: Vol.69 No.1-2, 页码: 231-245
作者:
He, J
;
Xu, B
;
Masri, SF
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浏览/下载:10/0
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提交时间:2020/01/05
Nonlinear system identification
Power series polynomial model
Nonlinear restoring force
Dynamic loadings
Weighted adaptive iterative least-squares estimation
Incomplete measured excitations
MR damper
基于粗糙集理论的聚类融合加权迭代模型
期刊论文
2010, 2010
阳琳赟
;
王路
;
卓晴
;
王文渊
;
YANG Linyun
;
WANG Lu
;
ZHUO Qing
;
WANG Wenyuan
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  |  
浏览/下载:3/0
基于粗糙集理论的聚类融合加权迭代模型
期刊论文
2010, 2010
阳琳赟
;
王路
;
卓晴
;
王文渊
;
YANG Linyun
;
WANG Lu
;
ZHUO Qing
;
WANG Wenyuan
收藏
  |  
浏览/下载:2/0
Novel method for optimizing polishing tool-path in CCOS based on weighted-iterative algorithm (EI CONFERENCE)
会议论文
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
Deng W.-J.
;
Zhang X.-J.
;
Wang X.-K.
;
Wang X.
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浏览/下载:32/0
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提交时间:2013/03/25
In Computer Controlled Optical Surfacing (CCOS)
polishing tool-path is the base of solving other control parameters such as dwell time. In order to improve the fabrication results of polishing off-axis aspheric
a novel method to optimize the tool-path is discussed in this paper. The optimizing method named weighted-iterative algorithm is according to the balance principle of the particle system. The power factor of each dwell point represents the requirement of dwell density. Considering the factors which influence the polishing result
the power factors cosist of three elements include constant
error distribution and dwell distance of workpiece edge. The tool-path is solved by numerical iterative method. In the end
an error data is simulated with actual parameters using the matrix-based algorithm with two different tool-paths. The one is X-Y uniform spacing model and the other one is to optimize it based on the first. The comparison shows that the results of the optimized one are much better than traditional one
especially the rms convergence rate. Theory of the algorithm is simple and exercisable
and it satisfies practical requirement as well. 2009 SPIE.
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