QUALITY ANALYSIS FOR LEAST-SQUARES TRANSFORMATION OF UNEVENLY SPACED INTERFEROGRAMS

Authors
WEIDNER H PEALE RE
Citation
H. Weidner et Re. Peale, QUALITY ANALYSIS FOR LEAST-SQUARES TRANSFORMATION OF UNEVENLY SPACED INTERFEROGRAMS, Applied spectroscopy, 52(4), 1998, pp. 587-590
Citations number
6
Categorie Soggetti
Instument & Instrumentation",Spectroscopy
Journal title
Applied spectroscopy → ACNP
ISSN journal
00037028
Volume
52
Issue
4
Year of publication
1998
Pages
587 - 590
Database
ISI
SICI code
0003-7028(1998)52:4<587:QAFLTO>2.0.ZU;2-1
Abstract
A least-squares method of transforming interferograms into spectra is compared with the traditional fast Fourier transform (FFT) for varying degree of point-spacing unevenness. A Gaussian distribution is assume d for the deviations from even spacing. FFT gives inferior spectra qua lity above a critical unevenness, which decreases as more interferogra ms are averaged.