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.

引用

页数：4