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Analysis method for Fourier transform spectroscopy (1983)

Park, J. H.

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Publication Date: 2011-08-18

Description: A fast Fourier transform technique is given for the simulation of those distortion effects in the instrument line shape of the interferometric spectrum that are due to errors in the measured interferogram. The technique is applied to analyses of atmospheric absorption spectra and laboratory spectra. It is shown that the nonlinear least squares method can retrieve the correct information from the distorted spectrum. Analyses of HF absorption spectra obtained in a laboratory and solar CO absorption spectra gathered by a balloon-borne interferometer indicate that the retrieved amount of absorbing gas is less than the correct value in most cases, if the interferogram distortion effects are not included in the analysis.

Keywords: INSTRUMENTATION AND PHOTOGRAPHY

Type: Applied Optics; 22; Mar. 15

Format: text

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