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Applied Spectroscopy

Applied Spectroscopy

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  • Vol. 52, Iss. 4 — Apr. 1, 1998
  • pp: 587–590

Quality Analysis for Least-Squares Transformation of Unevenly Spaced Interferograms

H. Weidner and R. E. Peale

Applied Spectroscopy, Vol. 52, Issue 4, pp. 587-590 (1998)


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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 assumed for the deviations from even spacing. FFT gives inferior spectra quality above a critical unevenness, which decreases as more interferograms are averaged.

Citation
H. Weidner and R. E. Peale, "Quality Analysis for Least-Squares Transformation of Unevenly Spaced Interferograms," Appl. Spectrosc. 52, 587-590 (1998)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-52-4-587

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