Analytical study of in-plane rotation error for segmented mirror

Yongfeng Zhang; Hao Xian

doi:10.1117/12.2557495

17 April 2020 Analytical study of in-plane rotation error for segmented mirror

Yongfeng Zhang, Hao Xian

Author Affiliations +

Proceedings Volume 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications; 1145507 (2020) https://doi.org/10.1117/12.2557495
Event: Sixth Symposium on Novel Photoelectronic Detection Technology and Application, 2019, Beijing, China

Abstract

Misalignments of sub-aperture in segmented or sparse synthetic optical telescope may dramatically degrade image quality. We analytically calculate the point spread function(PSF) for segmented aperture with local rotation, and its ensembleaveraged PSF, correspondingly. We are able to estimate the statistical imaging properties for apertures with random rotation. These results contribute to the fully knowledge of effect of all rigid misalignments. Although derivation herein is mainly in the context of Keck-like aperture, it can be easily generalized to other common segmentation geometries.

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Yongfeng Zhang and Hao Xian "Analytical study of in-plane rotation error for segmented mirror", Proc. SPIE 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications, 1145507 (17 April 2020); https://doi.org/10.1117/12.2557495

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