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化学进展 2010, Vol. 22 Issue (05): 962-974 前一篇   后一篇

• 综述与评论 •

移动窗口二维相关光谱技术

王梦吟; 武培怡*   

  1. (聚合物分子工程教育部重点实验室 复旦大学高分子科学系和先进材料实验室 上海 200433)
  • 收稿日期:2009-06-30 修回日期:2009-09-02 出版日期:2010-05-24 发布日期:2010-05-05
  • 通讯作者: 武培怡 E-mail:peiyiwu@fudan.edu.cn
  • 基金资助:

    国家自然科学基金

Moving Window Two-Dimensional(MW2D)Correlation Spectroscopy

Wang Mengyin; Wu Peiyi*   

  1. (Key Laboratory of Polymer Engineering Science, Ministry of Education, Department of Macromolecular Science and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China)
  • Received:2009-06-30 Revised:2009-09-02 Online:2010-05-24 Published:2010-05-05
  • Contact: Wu Peiyi E-mail:peiyiwu@fudan.edu.cn
  • Supported by:

    National Natural Science Foundation of China

移动窗口二维相关光谱是一种新的二维相关分析方法,它将移动窗口的概念和二维相关分析方法有效地结合在了一起,利用移动窗口将庞大的光谱数据按矩阵分割成若干个便于操作的子矩阵,用二维相关光谱分别处理,将得到的结果综合分析,用以光谱变量和扰动变量为坐标的等高图表现出来,从中可以非常直观地观察出光谱强度在扰动变量方向上的变化,进而找出引起光谱强度突变的特征扰动点。本文主要介绍了移动窗口二维相关光谱的计算方法、基本特征、影响因素和实际应用,同时还详细介绍了以它为基础改进得到的扰动相关移动窗口二维相关光谱。扰动相关移动窗口二维相关光谱包括同步图和异步图,它不仅能很好地反映出引起光谱强度突变的特征扰动,还能详尽地描述出光谱强度在扰动过程中的变化情况。

Moving window two-dimensional(MW2D)correlation spectroscopy is the combination of the moving window concept with two-dimensional correlation spectroscopy (2DCOS) to facilitate the analysis of complex data sets. This new method of analysis allows one to split a large data matrix into smaller and simpler subsets and to analyze them instead of computing overall correlation. Complicated spectral intensity changes along the perturbation direction can be easily discriminated, and their characteristic perturbation points are precisely found by the MW2D correlation analysis. Topics covered by this review include calculation method, characteristic features, influencing factors and practical application of MW2D. In addition, perturbation-correlation moving-window two-dimensional (PCMW2D) correlation spectroscopy is especially emphasized, as an extension of MW2D.

Contents
1 Introduction
1.1 Two-dimensional correlation spectroscopy
1.2 Moving window
2 Moving window two-dimensional correlation analysis
2.1 Applications of MW2D correlation analysis in phase transitions
2.2 Calculation procedures of MW2D
2.3 Features of MW2D correlation analysis
2.4 Influencing factors of MW2D correlation analysis
3 Development of MW2D correlation analysis
3.1 Perturbation-correlation MW2D correlation spectroscopy
3.2 Others
4 Applications of MW2D correlation analysis
4.1 Applications of MW2D correlation spectroscopy
4.2 Applications of PCMW2D correlation spectroscopy
4.3 Computational simulations of MW2D correlation analysis
5 Conclusion

中图分类号: 

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[1] 沈怡,彭云,武培怡,杨玉良. 二维相关振动光谱技术*[J]. 化学进展, 2005, 17(03): 499-513.
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移动窗口二维相关光谱技术