Denominator-free control algorithms for adaptive optics

J. C. Shelton

doi:10.1117/12.290162

17 October 1997 Denominator-free control algorithms for adaptive optics

J. C. Shelton

Proceedings Volume 3126, Adaptive Optics and Applications; (1997) https://doi.org/10.1117/12.290162
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

A class of control algorithms for adaptive optics is presented which does not use or require division in the centroid portion of the control processing. It is shown by theory and observation that the denominator-free algorithms perform significantly better than standard control algorithms, particularly in high- or variable-background situations. The use of this technique made possible the natural-guide-star observation of, among other things, the inner coma of comet Hale-Bopp close to the Sun and of the object GCS 2721:2316 at magnitude V=13.7.

Citation Download Citation

J. C. Shelton "Denominator-free control algorithms for adaptive optics", Proc. SPIE 3126, Adaptive Optics and Applications, (17 October 1997); https://doi.org/10.1117/12.290162

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