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Optimization-based correction of a segmented optical telescope using image-plane sensing

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2 Author(s)
Olivier, P.D. ; Dept. of Electr. & Comput. Eng., Mercer Univ., Macon, GA, USA ; Bernstein, D.S.

The apertures of many optical telescopes are constructed of multiple mirror segments. To attain the performance of a monolithic mirror, the segments must be corrected in tip, tilt, and piston. In this paper we consider a three-segment optical telescope and develop an optimization based algorithm for determining the initial error of the segmented aperture through a sequence of displacements, thereby facilitating correction of the initial error. The optimization algorithm is used to investigate the effects of sensor quantization on the achievable correction accuracy.

Published in:

American Control Conference, 2005. Proceedings of the 2005

Date of Conference:

8-10 June 2005