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Proceedings Paper

Propagation delay as a tool to retrieve high-frequency absolute tilt
Author(s): Tiziano Niero; Roberto Ragazzoni; Jacopo Farinato
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Paper 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.

Paper Details

Date Published: 7 December 1998
PDF: 7 pages
Proc. SPIE 3494, Atmospheric Propagation, Adaptive Systems, and Lidar Techniques for Remote Sensing II, (7 December 1998); doi: 10.1117/12.332415
Show Author Affiliations
Tiziano Niero, Univ. degli Studi di Padova (Italy)
Roberto Ragazzoni, Osservatorio Astronomico di Padova (Italy)
Jacopo Farinato, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 3494:
Atmospheric Propagation, Adaptive Systems, and Lidar Techniques for Remote Sensing II
Adam D. Devir; Anton Kohle; Ulrich Schreiber; Christian Werner, Editor(s)

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