Imaging theory based on space-borne lidar imaging system

Wei-Feng Diao; Zhen- Zhu Li; Rong Shu; Ji-Qiao Liu; Wei-Biao Chen

doi:10.1117/12.900778

15 August 2011 Imaging theory based on space-borne lidar imaging system

Wei-Feng Diao, Zhen- Zhu Li, Rong Shu, Ji-Qiao Liu, Wei-Biao Chen

Proceedings Volume 8196, International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications; 81961J (2011) https://doi.org/10.1117/12.900778
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

Scanning lidar imaging system using a linear detector array is constituted by both sides into 45° angle of mutual mirror composition. The construction of equivalent optical systems is greatly simplified in the imaging derivation process with intuitive method and analytic geometry. The optical imaging formulas are accurately derived for all the spots of the image. Based on the imaging requirements of the Lunar and Mars exploration technology, numerical simulations and error analysis were performed in the paper. It is shown that the maximum distortion ratio of the central spots pillow-shape distortion image is 3.41% in horizontal direction and the excursion of the edge spots by laser pulse at certain divergence angle is 0.194m, 0.096m in horizontal direction and vertical direction, respectively. The work of this paper can provide the theory basis of the lidar imaging signal processing on-line or off-line used in the deep space exploration projects.

Citation Download Citation

Wei-Feng Diao, Zhen- Zhu Li, Rong Shu, Ji-Qiao Liu, and Wei-Biao Chen "Imaging theory based on space-borne lidar imaging system", Proc. SPIE 8196, International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, 81961J (15 August 2011); https://doi.org/10.1117/12.900778

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KEYWORDS

Mirrors

Imaging systems

LIDAR

Distortion

Pulsed laser operation

Error analysis

Image processing

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