摘要

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.