Acta Optica Sinica, Volume. 38, Issue 4, 0401001(2018)
Outdoor Experiment of Down-Looking Inverse Synthetic Aperture Imaging Lidar
Figures & Tables(8)
Fig. 3. Outdoor experiment photo of down-looking ISAIL. (a) Radar setup; (b) imaging environment
Fig. 5. Imaging results of pyramid targets in orthogonal direction at 1.8 km. (a) Original image; (b) without time delay; (c) with time delay; (d) aligning in orthogonal direction; (e) without phase compensation in azimuthal direction; (f) with phase compensation in azimuthal direction
Fig. 6. Imaging results of pyramid targets in orthogonal direction at 3.4 km. (a) Original image; (b) without time delay; (c) with time delay; (d) aligning in orthogonal direction; (e) without phase compensation in azimuthal direction; (f) with phase compensation in azimuthal direction
Fig. 7. (a) Unmanned aerial vehicle target; (b) side imaging result of unmanned aerial vehicle
Table 1. System parameters of down-looking ISAIL
View tableTable 1. System parameters of down-looking ISAIL
Parameter Value Wavelength λ /nm1030 Vibrant angle /(°) ±7 Beam size /mm×mm 8×8 Vibrant frequency /Hz 760 Focus length of launching or receiving lens /m 1.2 Imaging distance /km 1.8,3.4 Speed of unmanned aerial vehicle /(m·s-1) 3,5 Modulation length /mm 6 Sampled frequency in orthogonal direction /MHz 31.25 Sampled frequency in azimuthal direction /Hz 1520 Focal length of cylindrical lens /mm 60,-60 Range×azimuthal resolution /mm×mm 7.2×5.8, 12.7×9.2
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Guangyuan Li, Zhiyong Lu, Yu Zhou, Jianfeng Sun, Qian Xu, Chenzhe Lao, Hongyu He, Guo Zhang. Outdoor Experiment of Down-Looking Inverse Synthetic Aperture Imaging Lidar[J]. Acta Optica Sinica, 2018, 38(4): 0401001
Paper Information
Category: Atmospheric Optics and Oceanic Optics
Received: Sep. 20, 2017
Accepted: --
Published Online: Jul. 10, 2018
The Author Email: Sun Jianfeng (sunjianfengs@163.com)
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