Correction method for lateral displacement optical system based on the analysis of aberration

Chunmei, 徐春梅 Xu; Bingqi, 刘秉琦 Liu; Fuyu, 黄富瑜 Huang; Chu, 张雏 Zhang; Hongbin, 沈洪斌 Shen; Li, 李莉 Li

doi:10.3788/irla201645.0618005

红外与激光工程

2016

DOI: 10.3788/irla201645.0618005

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Correction method for lateral displacement optical system based on the analysis of aberration

徐春梅 Xu Chunmei¹,

刘秉琦 Liu Bingqi²,

黄富瑜 Huang Fuyu³

et al.

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Influence and Correction of Wavefront Primary Aberrations for Radio Telescopes using Aberration Theory

Xiang¹,

Ban²,

Wang³

et al. 2023

Res. Astron. Astrophys.

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Dual-reflector antennas are widely used in astronomical observations and satellite communication. Structural deformations of the reflectors for radio telescopes are inevitable in operating conditions due to exterior loads, which will cause the surface deviation of the primary reflector and the displacement of the subreflector, then lead to the gain degradation and the misalignment. In this paper, the influence and correction of the misalignment of the dual-reflector antenna have been studied. From the perspective of the wavefront aberration, a method is proposed to correct the wavefront primary aberration by adjusting the subreflector position. The characteristics of wavefront errors caused by the structural deformation of the reflector have been analyzed, and the relationships between the position motions of the subreflector and the Seidel wavefront aberrations are derived. The adjustment quantities of the subreflector are also derived. The results show the suitable adjustment of the position of the subreflector in the lateral and axial directions can effectively correct the effects of the tilt and defocus of the primary aberrations caused by antenna structural deformations.

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Influence and Correction of Wavefront Primary Aberrations for Radio Telescopes using Aberration Theory

Xiang¹,

Ban²,

Wang³

et al. 2023

Res. Astron. Astrophys.

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show abstract

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Correction method for lateral displacement optical system based on the analysis of aberration

Cited by 1 publication

References 0 publications

Influence and Correction of Wavefront Primary Aberrations for Radio Telescopes using Aberration Theory

Influence and Correction of Wavefront Primary Aberrations for Radio Telescopes using Aberration Theory

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