On the uncertainties in determining fringe phase in Doppler asymmetric spatial heterodyne spectroscopy
| Autor: | Christoph R. Englert, Kenneth D. Marr, Brian J. Harding, J. Harlander, Kristina T. Chu |
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| Rok vydání: | 2019 |
| Předmět: |
Heterodyne
Physics business.industry Phase (waves) 01 natural sciences Phase unwrapping Atomic and Molecular Physics and Optics Fourier transform spectroscopy Direct measure 010309 optics symbols.namesake Optics 0103 physical sciences symbols Electrical and Electronic Engineering business Spectroscopy Engineering (miscellaneous) Doppler effect |
| Zdroj: | Applied optics. 58(13) |
| ISSN: | 1539-4522 |
| Popis: | The mean fringe phase measured by Doppler asymmetric spatial heterodyne spectroscopy is a direct measure of atmospheric wind. The uncertainty in measuring the mean phase is investigated and found to be accurately predicted by an analytic formula for moderate and high signal-to-noise ratios. At lower signal-to-noise ratios, numeric issues in the phase calculation result in non-Gaussian distributions of mean phase. Analysis techniques are described to mitigate these numeric issues to the extent possible. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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