Physics – Optics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...390l..41l&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 390, no. 1, May 1, 1992, p. L41-L44.
Physics
Optics
19
Adaptive Optics, Neural Nets, Reflecting Telescopes, Seeing (Astronomy), Aberration, Infrared Imagery, Interferometry, Mirrors, Optical Correction Procedure
Scientific paper
The first results are reported of an adaptive optics system operating on-line at the telescope with the wavefront aberration sensed by a trained artificial neural network. Star images were formed at 2.2 microns by two coherently phased apertures of the Multiple Mirror Telescope and analyzed by the neural net. The net derives wavefront parameters in a few milliseconds, and the system performance is fast enough that the aberration is nearly frozen during the time needed to make a correction. With the servo loop in operation, the corrected image shows significant power at the diffraction limit of 0.1 arcsec.
Anel R. P. J.
Colucci D'nardo
Dekany Richard
Lloyd-Hart Michael M.
McCarthy Dermot
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