Peculiarities of Interferogram Processing for FTIR- radiometer with the Availability of its Self-Emission
| Authors: Dvoruk S.K., Lel’kov M.V., Morozov A.N., Pozdnyakov V.A., Tabalin S.Ye., Drozdov M.S., Svetlichnyi S.I., Kochikov I.V., Kornienko V.N. | Published: 01.09.2014 |
| Published in issue: #2(9)/2002 | |
| DOI: | |
| Category: Physics | |
| Keywords: | |
The effect of the Fourier-transform infrared (FTIR) radiometer self-emission on the spectra obtained by processing double-sided interferograms is described. The theoretical analysis of Michelson interferometer operation is presented, showing that the reconstructed spectrum may eventually contain single inverted lines as well as inverted bands if the brightness temperature of an investigated object is close to that of the spectrometer. An algorithm for source interferogram correction and an experimental technique for FTIR-spectrometer calibration are offered to exclude the instrument emission effects in the final infrared spectra.
