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7 December 1998 Propagation delay as a tool to retrieve high-frequency absolute tilt
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Abstract
The purpose of Propagation Delay technique is to retrieve high frequency portion of absolute tip-tilt from a laser guide star by observing the fired artificial beacon just from the laser projector. This technique can relax the requirements on absolute tilt retrieving from other schemes, such as, for example, a fainter natural guide star in the same isoplanatic field, thus increasing the sky coverage factor. Simulations made under Matlab-Simulink and IDL software tools show some improvement in absolute tilt retrieving that can justify the efforts in carrying out this technique for an increase in Adaptive Optics efficiency.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tiziano Niero, Roberto Ragazzoni, and Jacopo Farinato "Propagation delay as a tool to retrieve high-frequency absolute tilt", Proc. SPIE 3494, Atmospheric Propagation, Adaptive Systems, and Lidar Techniques for Remote Sensing II, (7 December 1998); https://doi.org/10.1117/12.332415
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