Optical design of space debris detection system with wide field of view

Gengyao Zhang; Xuewu Fan; Zixuan Ma; Guang Qin

doi:10.1117/12.2574684

5 November 2020 Optical design of space debris detection system with wide field of view

Gengyao Zhang, Xuewu Fan, Zixuan Ma, Guang Qin

Author Affiliations +

Proceedings Volume 11570, AOPC 2020: Telescopes, Space Optics, and Instrumentation; 1157004 (2020) https://doi.org/10.1117/12.2574684
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

At present, the frequency of human space activities continues to increase, resulting in more and more space debris, which poses a great threat to the working satellite. The collision of debris and satellites may cause abnormal operation of the satellite or even complete damage. Based on the 3u cubic satellite platform, this paper has designed a miniaturized visible light detection system with a full field of view of 12° (9°×7°). the wavelength band of the system is 450 ~ 800nm, the pixel size of the detector is 5μm, the entrance pupil diameter is 60mm, the system focal length is 150mm, the detection system is composed of 8 lenses. Using optical design software to evaluate the image quality of the optical system, the results show that the diffusion spots in each field of view are approximately circular, the maximum RMS radius is less than 7.4 μm, and the energy distribution in each field of view is more than 80% within 3 × 3 pixels, field curvature, distortion all meet the requirements of the detection system. Finally, the tolerance analysis results show that the design has good imaging quality and meets the system performance requirements and machining requirements. The visible light detection system has a large field of view, light weight, low processing cost and high energy concentration. and can meet the demand for space debris detection in Earth orbit.

Citation Download Citation

Gengyao Zhang, Xuewu Fan, Zixuan Ma, and Guang Qin "Optical design of space debris detection system with wide field of view", Proc. SPIE 11570, AOPC 2020: Telescopes, Space Optics, and Instrumentation, 1157004 (5 November 2020); https://doi.org/10.1117/12.2574684

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KEYWORDS

Target detection

Tolerancing

Imaging systems

Satellites

Astronomical imaging

Lenses

Monochromatic aberrations

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