Cn2 Profile from Shack-Hartmann Data:. First Steps for Co-Slidar Data Processing

Details Cn2 Profile from Shack-Hartmann Data:. First Steps for Co-Slidar Data Processing Cn2 Profile from Shack-Hartmann Data:. First Steps for Co-Slidar Data Processing

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009otam.conf...74r&link_type=abstract

Optical Turbulence: Astronomy Meets Meteorology, Proceedings of the Astronomy Meets Meteorology, Proceedings of the Optical Turb

Physics

Optics

Turbulence, Adaptive Optics, Wave-Front Sensing, Inverse Problems

Scientific paper

Cn2 profile monitoring usually make use of wavefront slope correlations or of scintillation pattern correlations. Scintillation is rather sensitive to high turbulence layers whereas wavefront slope correlations are mainly due to layers close to the receiving plane. Wavefront slope and scintillation correlations are therefore complementary. Slopes and scintillation being recorded simultaneously with a SHWFS, we propose here to exploit their correlations to retrieve the Cn2 profile. The measurement method named COupled SLodar scIDAR (CO-SLIDAR1) uses correlations of SHWFS data from two separated stars. CO-SLIDAR method is presented with results of Cn2 estimation from simulated SHWFS. Preliminary results with CO-SLIDAR are presented using real data from a binary star.

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