Far-field outdoor experimental demonstration of down-looking synthetic aperture ladar

被引：3
|
作者：
Li, Guangyuan [1 ,2 ]
Lu, Zhiyong [1 ]
Zhou, Yu [1 ]
Sun, Jianfeng [1 ]
Xu, Qian [1 ]
Lao, Chenzhe [1 ,2 ]
He, Hongyu [1 ,2 ]
Zhang, Guo [1 ,2 ]
Liu, Liren [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Space Laser Commun & Detect Technol, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2017年 / 15卷 / 08期
基金：
中国国家自然科学基金;
关键词：
AUTOFOCUS; RADAR;
D O I：
10.3788/COL201715.082801
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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.
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收藏
页数：4
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