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Sparse matrix wave-front estimators for adaptive-optics systems for large ground-based telescopes

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Abstract

A closed-loop adaptive-optics servo system is an iterative optical–digital processor that can be characterized by a first-order difference equation. This identification leads to a new class of wave-front estimators, some of which are extremely sparse and permit real-time subaperture intensity weighting.

© 1995 Optical Society of America

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