Chinese Optics Letters, Volume. 15, Issue 8, 082801(2017)
Far-field outdoor experimental demonstration of down-looking synthetic aperture ladar
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Fig. 3. Errors of the phase modulation module: side-to-side vibrant angle.
Fig. 4. Simulation results: (a) compressed image in the orthogonal direction and (b) the imaging result.
Fig. 5. Optical corner cube target and imaging result of down-looking SAIL over 6 km: (a) the optical corner cubes and (b) the imaging result.
Fig. 6. Compressed image in the orthogonal direction over 6 km: (a) without alignment and (b) with alignment.
Table 1. System Parameters of Down-Looking SAIL
View tableView in ArticleTable 1. System Parameters of Down-Looking SAIL
Parameters Values Wavelength 1030 nm Vibrant angle Beam diameter Vibrant frequency 760 Hz Focus length of launch/receive lens 1.2 m Imaging distance 6800 m The rotation speed of the rotary table Modulation length 5 mm Sampled frequency in orthogonal direction 31.25 MHz Sampled frequency in azimuthal direction 1520 Hz Cylindrical lens focal length 60 and resolutions Laser power 30 W Sampling duty cycle 58.91%
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Guangyuan Li, Zhiyong Lu, Yu Zhou, Jianfeng Sun, Qian Xu, Chenzhe Lao, Hongyu He, Guo Zhang, Liren Liu, "Far-field outdoor experimental demonstration of down-looking synthetic aperture ladar," Chin. Opt. Lett. 15, 082801 (2017)
Paper Information
Category: Remote Sensing and Sensors
Received: Feb. 23, 2017
Accepted: Apr. 28, 2017
Published Online: Jul. 20, 2018
The Author Email: Jianfeng Sun (sunjianfengs@163.com)
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