3-D remote sensing based on the combination of ladar and 2-D remote sensing data is one of the most important emerging trends in the field of remote sensing. We design a co-aperture optical system to be used for 3-D remote sensing payload. In order to use the spatial limitation of the satellite as input conditions, we modify the initial equation of the three-mirror system. The original parameters are determined from the solution of the modified equation and then a coaxial three-mirror system is designed. The fields are biased to avoid secondary obstruction caused by the image plane. The focal length and F number of the system are 2 400 mm and 5.33, respectively. The tertiary mirror is placed in front of the primary mirror to shorten the on-axial length by using three plane mirrors, which resolves the contradiction between long focal length and spatial size. The system is free of chromatic aberration, has small distortion and offers a good performance. The modulation transfer function approaches the diffraction limit, and the system has a large relative aperture, of which the geometric encircled energy is confined within a circle of diameter 35 m. The designed optical system provides good performance with high resolution and satisfies the requirements for ladar. 2018, Science Press. All right reserved.
Ma, Lie,Chen, Bo. Optical design of a co-aperture system for 3-D remote sensing payload[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2018,26(9):2326-2333.
APA
Ma, Lie,&Chen, Bo.(2018).Optical design of a co-aperture system for 3-D remote sensing payload.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,26(9),2326-2333.
MLA
Ma, Lie,et al."Optical design of a co-aperture system for 3-D remote sensing payload".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 26.9(2018):2326-2333.
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