RAFALIMANANA , Alohotsy

Accurate prediction of atmospheric and turbulence conditions are of interest for astronomical community and free space optical communications. The a priori knowledge of atmospheric conditions several hours before the observations allows to optimize the programmation of astronomical observations called "flexible scheduling". In the field of free...

International audience

Abstract The performance of ground-based astronomical observations and free-space optical communication (FSOC) systems suffers from atmospheric turbulence and meteorological conditions. The a priori knowledge of atmospheric conditions several hours before observations allows the programming of astronomical observations (flexible scheduling) to...

International audience

Optimizing atmospheric turbulence predictions for optical links and astronomical observations

The Generalised Differential Image Motion Monitor (GDIMM) was proposed a few years ago as a new generation instrument for turbulence monitoring. It measures integrated parameters of the optical turbulence, i.e the seeing, isoplanatic angle, scintillation index, coherence time and wavefront coherence outer scale. GDIMM is based on a fully...

International audience