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Proceedings Paper

Wavefront sensing and control for a segmented primary mirror
Author(s): Bing Dong; Xin Yu; Xiaofang Zhang; Baiwei Guo; Lei Zhao
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Paper Abstract

Large-aperture segmented primary mirror has been widely used in high-resolution space telescopes. In this paper, we concentrate on the wavefront sensing and control (WFS&C) methods for a segmented primary mirror comprising a central octagon and eight surrounding petals. As the wavefront errors have a wide dynamic range in amplitude and spatial frequency, a multistage wavefront control algorithm is proposed. The control process is divided to five steps to reduce the wavefront errors gradually. A simulation toolbox integrating multi-disciplinary software has been developed to verify our WFS&C algorithms. Simulation results give a good demonstration of the feasibility of our algorithms.

Paper Details

Date Published: 14 July 2008
PDF: 8 pages
Proc. SPIE 7015, Adaptive Optics Systems, 70154U (14 July 2008); doi: 10.1117/12.787535
Show Author Affiliations
Bing Dong, Beijing Institute of Technology (China)
Xin Yu, Beijing Institute of Technology (China)
Xiaofang Zhang, Beijing Institute of Technology (China)
Baiwei Guo, Beijing Institute of Technology (China)
Lei Zhao, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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