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dc.contributor.author | Kharintsev S. | |
dc.contributor.author | Kamalova D. | |
dc.contributor.author | Salakhov M. | |
dc.contributor.author | Sevastianov A. | |
dc.date.accessioned | 2018-09-17T21:32:28Z | |
dc.date.available | 2018-09-17T21:32:28Z | |
dc.date.issued | 2005 | |
dc.identifier.issn | 1386-1425 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/135125 | |
dc.description.abstract | An approach based on the using of the continuous wavelet transform (CWT) in derivative spectrometry (DS) is considered. Within the framework of the approach we develop a numerical differentiation algorithm with continuous wavelets for improving resolution of composite spectra. The wavelet-based derivative spectrometry (WDS) method results in best contrast in differential curves compared to the conventional derivative spectrometry method. A main advantage is that, as opposed to DS, WDS gives stable estimations of derivative in the wavelet domain without using the regularization. A wavelet shape and the information redundancy are of the greatest importance when the continuous wavelet transform is used. As an appropriate wavelet we offer to utilize the nth derivative of a component with a priori known shape. The energy distribution into scales allows one to determine a unique wavelet projection and in that way to avoid the information redundancy. A comparative study of WDS and DS with the statistical regularization method (SRM) is made; in particular, limits of applicability of these are given. Examples of the application of both DS and WDS for improving resolution of synthetic composite bands and real-world composite ones coming from molecular spectroscopy are given. © 2004 Elsevier B.V. All rights reserved. | |
dc.relation.ispartofseries | Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | |
dc.subject | Derivative spectrometry | |
dc.subject | Resolution | |
dc.subject | Wavelet transform | |
dc.title | Resolution enhancement of composite spectra using wavelet-based derivative spectrometry | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 1-2 | |
dc.relation.ispartofseries-volume | 61 | |
dc.collection | Публикации сотрудников КФУ | |
dc.relation.startpage | 149 | |
dc.source.id | SCOPUS13861425-2005-61-12-SID9544249363 |