High stability of opto-mechanical structure design and validation of Beijing No.3 camera

Ting-yun Luo; Bao-cheng Zou; Si-hui Li; Shou-cheng Pang; Chun-rui Zhang

doi:10.1117/12.3007544

18 December 2023 High stability of opto-mechanical structure design and validation of Beijing No.3 camera

Ting-yun Luo, Bao-cheng Zou, Si-hui Li, Shou-cheng Pang, Chun-rui Zhang

Proceedings Volume 12963, AOPC 2023: Optical Sensing, Imaging, and Display Technology and Applications; and Biomedical Optics; 129630V (2023) https://doi.org/10.1117/12.3007544
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

With the development of remote sensing technology, users' demands for agility and high resolution are becoming increasingly high. Beijing No.3 Satellite is a new type of optical remote sensing satellite with ultra-high agility, high resolution and large swath. Operating in about 500kmSun-synchronous orbit, it can obtain the ground pixel resolution of panchromatic 0.5m/multi-spectral 2m at the satellite nadir point with a width of more than 23km. According to user indicators and engineering implementation difficulties, a dual camera optical splicing method is adopted to increase the camera width and reduce the development difficulty of the camera's optical and mechanical structure. The splicing process adopts the combination processing method to ensure the high precision and stability of the splicing angle of dual cameras. In terms of opto-mechanical structure, the stability is ensured through the integrated design of the mirror and the support structure. Thein-orbit commission shows that the camera resolution and swath meets the users’ requirement, the image is clear and the quality is high, indicating that the camera's optical and mechanical structure has high stability and demonstrate the effectiveness of the approaches proposed.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ting-yun Luo, Bao-cheng Zou, Si-hui Li, Shou-cheng Pang, and Chun-rui Zhang "High stability of opto-mechanical structure design and validation of Beijing No.3 camera", Proc. SPIE 12963, AOPC 2023: Optical Sensing, Imaging, and Display Technology and Applications; and Biomedical Optics, 129630V (18 December 2023); https://doi.org/10.1117/12.3007544

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KEYWORDS

Cameras

Satellites

Design and modelling

Mirrors

Image quality

Remote sensing

Imaging systems

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