全天星光折射导航系统光学系统设计方法

IF 1.9 4区 物理与天体物理 Q3 OPTICS Journal of the European Optical Society-Rapid Publications Pub Date : 2023-10-27 DOI:10.1051/jeos/2023041
shaochong wu
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引用次数: 0

摘要

星光折射导航在航天器和空间武器中的应用是一个重要的发展方向。星敏感器在强翼背景下观测到足够多的折射星是一个迫切需要解决的问题。根据星探测要求和导航精度,对全天光学系统参数进行了分析。结合初像差理论,选择了初焦反射光学系统,满足了大视场和紧凑结构的设计要求。设计了一种h波段(1.52um-1.78um)星敏感器,视场为6°,焦距为831mm,有效孔径为253mm,相对畸变为0.03%。星点在30um内的能量浓度为85%,最大横向色差为2.9um,满足成像要求。此外,还设计了一个挡板,以避免阳光直射对恒星成像的影响。该方法可为折射星导航的光学设计提供理论基础和技术支持。
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Optical system design method of the all-day starlight refraction navigation system
The application of starlight refraction navigation to spacecraft and space weapons is a significant development direction. Observing enough refracted stars for the star sensor in a strong limb background is an urgent problem. The all-day optical system parameters are analyzed based on the star detection requirement and navigation accuracy. Combined with primary aberration theory, the prime-focus catadioptric optical system is selected to meet the design requirements of a wide field of view (FOV) and tight structure. An H-band (1.52um-1.78um) star sensor is designed with a FOV of 6°, a focal length of 831mm, an effective aperture of 253mm, and a relative distortion of 0.03%. The energy concentration of the star point is 85% within 30um, and the maximum lateral chromatic aberration is 2.9um, which meets the imaging requirements. Furthermore, a baffle is designed to avoid the influence of direct sunlight on stellar imaging. The proposed method can provide a theoretical foundation and technical support for the optical design of the refraction star navigation.
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来源期刊
CiteScore
2.40
自引率
0.00%
发文量
12
审稿时长
5 weeks
期刊介绍: Rapid progress in optics and photonics has broadened its application enormously into many branches, including information and communication technology, security, sensing, bio- and medical sciences, healthcare and chemistry. Recent achievements in other sciences have allowed continual discovery of new natural mysteries and formulation of challenging goals for optics that require further development of modern concepts and running fundamental research. The Journal of the European Optical Society – Rapid Publications (JEOS:RP) aims to tackle all of the aforementioned points in the form of prompt, scientific, high-quality communications that report on the latest findings. It presents emerging technologies and outlining strategic goals in optics and photonics. The journal covers both fundamental and applied topics, including but not limited to: Classical and quantum optics Light/matter interaction Optical communication Micro- and nanooptics Nonlinear optical phenomena Optical materials Optical metrology Optical spectroscopy Colour research Nano and metamaterials Modern photonics technology Optical engineering, design and instrumentation Optical applications in bio-physics and medicine Interdisciplinary fields using photonics, such as in energy, climate change and cultural heritage The journal aims to provide readers with recent and important achievements in optics/photonics and, as its name suggests, it strives for the shortest possible publication time.
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