1. Laboratory demonstration of spotlight-mode down-looking synthetic aperture imaging ladar
- Author
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Ning Zhang Ning Zhang, Zhiyong Lu Zhiyong Lu, Jianfeng Sun Jianfeng Sun, Yu Zhou Yu Zhou, Zhu Luan Zhu Luan, Zhiwei Sun Zhiwei Sun, Gunagyuan Li Gunagyuan Li, and Liren Liu Liren Liu
- Subjects
Synthetic aperture radar ,Physics ,business.industry ,Collimator ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,Lidar ,Optics ,law ,Digital image processing ,Focal length ,Point (geometry) ,Electrical and Electronic Engineering ,business ,Transformation optics ,Free-space optical communication - Abstract
A static-mode synthetic aperture imaging ladar (SAIL) in which the target and carrying platform are kept still during the collection process is proposed and demonstrated. A target point of 0.5 mm \times 0.5 mm and a two-dimensional (2D) object are reconstructed in the experiments, in which an optical collimator with a focal length of 10 m is used to simulate the far-field condition. The achieved imaging resolution is in agreement with the theoretical design. The static-mode down-looking SAIL has the capability to eliminate the influence from the atmospheric turbulence and can be conveniently operated outdoors.
- Published
- 2015