Signal averaging of photoacoustic FT-IR Data—II. Incoherent co-adding and interferogram symmetrization
| Autor: | K.H. Michaelian, J.R. Birch |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Signal processing
Materials science business.industry Astrophysics::Instrumentation and Methods for Astrophysics General Engineering Physics::Optics Photoacoustic imaging in biomedicine Infrared spectroscopy Spectral line symbols.namesake Fourier transform Optics symbols Symmetrization Signal averaging Fourier transform infrared spectroscopy business |
| Zdroj: | Infrared Physics. 31:527-537 |
| ISSN: | 0020-0891 |
| DOI: | 10.1016/0020-0891(91)90033-c |
| Popis: | Previous strategies developed for averaging photoacoustic FT-IR interferograms have been extended to include the elimination of incoherent co-adding and the symmetrization of the interferograms. Incoherence of the interferograms can be reduced through the alignment of their centrebursts; when this is not adequate, interferogram symmetrization and alignment remove any detectable effect of incoherence. Systematic variation of the symmetrization parameters has permitted conclusions regarding the averaging of symmetrized interferograms and their corresponding spectra. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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