Sub region curvature sensing method for survey telescope with larger aperture

doi:10.37188/CO.2022-0117

CIOMP OpenIR

	Sub region curvature sensing method for survey telescope with larger aperture
	Q.-C. An, X.-X. Wu, J.-X. Zhang, H.-W. Li, J.-K. Zhu and Y.-Q. Cai
	2023
发表期刊	Chinese Optics
ISSN	20971842
卷号	16 期号:2 页码:358-365
摘要	The large aperture sky survey telescope needs closed-loop error correction based on the feedback of its wavefront sensing system, so as to give it a better conform to its limit detection ability. In this paper, firstly, the basic theoretical expression of sub region curvature sensing is derived. Then, a joint simulation model is established. The process of sub region curvature sensing is simulated and analyzed by using a combination of optical design software and numerical calculation software. Finally, by setting up a desktop experiment, the cross-comparison of single- and multi-target curvature sensors is carried out to verify the correctness of the algorithm. Compared to the traditional active optical technology, the method proposed in this paper can improve the detection signal-to-noise ratio and sampling speed by expanding the available guide stars. For the standard wavefront, compared with the single guide star curvature sensor, the error is 0.02 operating wavelengths (RMS), and the error is less than 10%, which can effectively improve the correction ability of the active optical system. © 2023 Editorial Office of Chinese Optics. All rights reserved.
DOI	10.37188/CO.2022-0117
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收录类别	ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67324
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Q.-C. An, X.-X. Wu, J.-X. Zhang, H.-W. Li, J.-K. Zhu and Y.-Q. Cai. Sub region curvature sensing method for survey telescope with larger aperture[J]. Chinese Optics,2023,16(2):358-365.
APA	Q.-C. An, X.-X. Wu, J.-X. Zhang, H.-W. Li, J.-K. Zhu and Y.-Q. Cai.(2023).Sub region curvature sensing method for survey telescope with larger aperture.Chinese Optics,16(2),358-365.
MLA	Q.-C. An, X.-X. Wu, J.-X. Zhang, H.-W. Li, J.-K. Zhu and Y.-Q. Cai."Sub region curvature sensing method for survey telescope with larger aperture".Chinese Optics 16.2(2023):358-365.

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