14 July 2008 Wavefront sensing and control for a segmented primary mirror
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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.
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Bing Dong, Xin Yu, Xiaofang Zhang, Baiwei Guo, Lei Zhao, "Wavefront sensing and control for a segmented primary mirror", Proc. SPIE 7015, Adaptive Optics Systems, 70154U (14 July 2008); doi: 10.1117/12.787535; https://doi.org/10.1117/12.787535
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