| 基于小波变换和凸集投影的数据恢复和建模算法 |
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| 引用本文： | 陈韬,王京春.基于小波变换和凸集投影的数据恢复和建模算法[J].系统仿真学报,2001,13(Z1):79-81. |
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| 作者姓名： | 陈韬 王京春 |
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| 作者单位： | 清华大学自动化系, |
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| 基金项目： | 研究方向包括小波和神经元网络的理论和应用、先进过程控制、优化算法、数据隐藏等. |
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| 摘 要： | 在过程控制中,当参数仅能以低采样率获得时,数据恢复就在建模中显得非常重要.本文提出了基于小波变换和凸集投影的数据恢复和建模算法.待恢复数据的先验知识采用凸集表达,并利用向凸集迭代投影(POCSProjection
onto Convex
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| 关 键 词： | 数据恢复 小波变换 投影算法 过程建模 |
| 文章编号： | 1004-731X(2001)0A-0079-03 |
| 修稿时间： | 2001年5月16日 |
Data Reconstruction and Process Modeling with Wavelet Transform and Projection
Algorithm |
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| CHEN Tao,WANG Jing-chun.Data Reconstruction and Process Modeling with Wavelet Transform and Projection
Algorithm[J].Journal of System Simulation,2001,13(Z1):79-81. |
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| Authors: | CHEN Tao WANG Jing-chun |
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| Abstract: | Data reconstruction is very useful in building models for process control when process variables may only be measured with low sampling rates. In this paper, a wavelet-based data reconstruction method is proposed. The prior knowledge of the data to be reconstructed is represented by convex sets. The algorithm is iterative and based on projections onto convex sets (POCS). Experimental results show the usefulness and effectiveness of the algorithm in process modeling. |
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| Keywords: | data reconstruction wavelet transform projection algorithm process modeling |
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