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Chin. Opt. Lett.
 Home  List of Issues    Issue 08 , Vol. 15 , 2017    10.3788/COL201715.082801


Far-field outdoor experimental demonstration of down-looking synthetic aperture ladar
Guangyuan Li1;2, Zhiyong Lu1, Yu Zhou1, Jianfeng Sun1, Qian Xu1, Chenzhe Lao1;2, Hongyu He1;2, Guo Zhang1;2, and Liren Liu1
1 Key Laboratory of Space Laser Communication and Detection Technology, [Shanghai Institute of Optics and Fine Mechanics], Chinese Academy of Sciences, Shanghai 201 800, China
2 [University of Chinese Academy of Sciences], Beijing 100049, China

Chin. Opt. Lett., 2017, 15(08): pp.082801

DOI:10.3788/COL201715.082801
Topic:Remote sensing and sensors
Keywords(OCIS Code): 280.6730  280.3640  100.2000  100.3010  110.0110  

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.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2017/2/23
Accepted:2017/4/28
Posted online:2017/5/31

Get Citation: Guangyuan Li, Zhiyong Lu, Yu Zhou, Jianfeng Sun, Qian Xu, Chenzhe Lao, Hongyu He, Guo Zhang, and Liren Liu, "Far-field outdoor experimental demonstration of down-looking synthetic aperture ladar," Chin. Opt. Lett. 15(08), 082801(2017)

Note: This work was supported by the National Natural Science Foundation of China (Nos. 61605226 and 61505233) and the Shanghai Astronomical Observatory, Chinese Academy of Sciences.



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