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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 22 — Aug. 1, 2011
  • pp: 4403–4416

Simulation and analysis of a multi-order imaging Fabry–Perot interferometer for the study of thermospheric winds and temperatures

Jonathan J. Makela, John W. Meriwether, Yiyi Huang, and Peter J. Sherwood  »View Author Affiliations


Applied Optics, Vol. 50, Issue 22, pp. 4403-4416 (2011)
http://dx.doi.org/10.1364/AO.50.004403


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Abstract

We describe an analysis procedure for estimating the thermospheric winds and temperatures from the multi-order two-dimensional (2D) interferograms produced by an imaging Fabry–Perot interferometer (FPI) as imaged by a CCD detector. We also present a forward model describing the 2D interferograms. To investigate the robustness and accuracy of the analysis, we perform several Monte Carlo simulations using this forward model for an FPI that has recently been developed and deployed to northeastern Brazil. The first simulation shows that a slight cross-contamination at high temperatures exists between neighboring orders in the interferogram, introducing a bias in the estimated temperatures and increasing errors in both the estimated temperatures and winds when each order is analyzed in full. The second simulation investigates how using less than an entire order in the analysis reduces the cross contamination observed in the first set of simulations, improving the accuracy of the estimated temperatures. The last simulation investigates the effect of the signal-to-noise ratio on the errors in the estimated parameters. It is shown that, for the specific FPI simulated in this study, a signal-to-noise ratio of 1.5 is required to obtain thermospheric wind errors of 5 m / s and temperature errors of 20 K .

© 2011 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(300.2140) Spectroscopy : Emission
(300.3700) Spectroscopy : Linewidth
(010.0280) Atmospheric and oceanic optics : Remote sensing and sensors

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: February 17, 2011
Revised Manuscript: June 3, 2011
Manuscript Accepted: June 25, 2011
Published: July 27, 2011

Citation
Jonathan J. Makela, John W. Meriwether, Yiyi Huang, and Peter J. Sherwood, "Simulation and analysis of a multi-order imaging Fabry–Perot interferometer for the study of thermospheric winds and temperatures," Appl. Opt. 50, 4403-4416 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-22-4403


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