Chinese Optics Letters, 2017, 15 (8): 082801, Published Online: Jul. 20, 2018   

Far-field outdoor experimental demonstration of down-looking synthetic aperture ladar Download: 788次

Author Affiliations
1 Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
Abstract
A specific system structure of down-looking synthetic aperture imaging ladar (SAIL) is given, and a far-field experiment over 6 km of down-looking SAIL under this system design is carried out. The down-looking SAIL can overcome the influence of atmospheric turbulence to a great extent. By applying this system design, it also has advantages in self-compensating phase modulation. A fine image is obtained after aligning in the orthogonal direction and phase error compensation in the travel direction based on a dominant scatterer. The achieved imaging resolutions in the two dimensions are both better than 5 cm.

Guangyuan Li, Zhiyong Lu, Yu Zhou, Jianfeng Sun, Qian Xu, Chenzhe Lao, Hongyu He, Guo Zhang, Liren Liu. Far-field outdoor experimental demonstration of down-looking synthetic aperture ladar[J]. Chinese Optics Letters, 2017, 15(8): 082801.

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