Bootstrapping an adaptive optics loop

Details Bootstrapping an adaptive optics loop Bootstrapping an adaptive optics loop

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997spie.2871..850f&link_type=abstract

Proc. SPIE Vol. 2871, p. 850-858, Optical Telescopes of Today and Tomorrow, Arne L. Ardeberg; Ed.

Physics

Optics

1

Scientific paper

Switching-on an adaptive optics loop, the system usually rapidly locks the target in the correction mode. When the sky background contribution is not negligible, the SNR may depend upon the correction status. While in an already closed loop, the SNR could be high enough to maintain the situation of good correction by the adopt system, during the switching-on phase, this condition could be far from true, because it is possible that the SNR isn't enough to lock the loop, starting from the open loop situation. We discuss this problem (called the bootstrap problem for adaptive optics) with particular attention on some filtering system working in the described situation and tuned to solve the problem.

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