Computer Science – Performance
Scientific paper
Sep 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3353..579r&link_type=abstract
Proc. SPIE Vol. 3353, p. 579-590, Adaptive Optical System Technologies, Domenico Bonaccini; Robert K. Tyson; Eds.
Computer Science
Performance
Scientific paper
A description is given for the geometry of the first generation adaptive-optical (AO) system being developed for the 6.5m single-mirror telescope that will replace the Multiple Mirror Telescope on Mt. Hopkins. The AO system consists of an adaptive secondary mirror with 330-actuators and a wave front senor composed of a 13 by 13 square subaperture array. The deformable mirror actuator vibrational modes were determined from a finite element model of the adaptive-secondary mirror. Numerical simulations in based on the finite element results were carried out to determine the expected performance of the system. Two reconstruction algorithms were compared - a least squares reconstructor and a modal equalization technique developed for this AO geometry. Strehl ratios are reported for the two algorithms for various guide star magnitudes and number of corrected wave front modes.
Angel James Roger P.
Cuerden Brian
Fitz-Patrick Bruce C.
Lloyd-Hart Michael M.
McGuire Patrick C.
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