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Three-dimensional coherent ladar based on FMCW and its flight demonstration

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Abstract

A scanning three-dimensional coherent laser radar (ladar) based on the frequency modulated continuous wave (FMCW) is proposed and demonstrated, which can obtain many three-dimensional high-quality images. The system utilizes an electro-optic modulator and an optical filter to output a linear FMCW with a bandwidth of 2 GHz. The flexible and variable rotating double prism is used for beam scanning. The images of flight demonstration are formed by attitude compensation correction. The experiment result validates the performance of our system for airborne three-dimensional scanning imaging.

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DOI:10.3788/COL201917.092801

所属栏目:Remote Sensing and Sensors

基金项目:We thank the Key Laboratory of Space Laser Communication and Detection Technology of Chinese Academy of Sciences and the 33rd Institute for the use of their equipment. This work was supported by the National Natural Science Foundation of China (No. 61605226).

收稿日期:2019-04-30

录用日期:2019-06-11

网络出版日期:2019-09-01

作者单位    点击查看

Zhiyong Lu:Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Wei Lu:Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Yu Zhou:Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Jianfeng Sun:Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Qian Xu:Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Lijuan Wang:Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

联系人作者:Zhiyong Lu(luzhiyong15@126.com)

备注:We thank the Key Laboratory of Space Laser Communication and Detection Technology of Chinese Academy of Sciences and the 33rd Institute for the use of their equipment. This work was supported by the National Natural Science Foundation of China (No. 61605226).

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引用该论文

Zhiyong Lu,  Wei Lu,  Yu Zhou,  Jianfeng Sun,  Qian Xu,  Lijuan Wang, "Three-dimensional coherent ladar based on FMCW and its flight demonstration," Chinese Optics Letters 17(9), 092801 (2019)

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