28 August 2010 A synthetic aperture imaging ladar demonstrator with Ø300mm antenna and changeable footprint
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Abstract
A demonstrator of synthetic aperture imaging ladar (SAIL) is constructed with the maximum aperture Ø300mm of antenna telescope. This demonstrator can be set with a rectangular aperture to produce a rectangular footprint suitable for scanning format with a high resolution and a wide strip. Particularly, the demonstrator is designed not only for the farfield application but also for the verifying and testing in the near-field in the laboratory space. And a 90 degree optical hybrid is used to mitigate the external phase errors caused by turbulence and vibration along line of sight direction and the internal phase errors caused by local fiber delay line. This paper gives the details of the systematic design, and the progresses of the experiment at a target distance around 130m.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yu Zhou, Yu Zhou, Yanan Zhi, Yanan Zhi, Aimin Yan, Aimin Yan, Nan Xu, Nan Xu, Lijuan Wang, Lijuan Wang, Yapeng Wu, Yapeng Wu, Zhu Luan, Zhu Luan, Jianfeng Sun, Jianfeng Sun, Liren Liu, Liren Liu, } "A synthetic aperture imaging ladar demonstrator with Ø300mm antenna and changeable footprint", Proc. SPIE 7818, Adaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems II, 78180T (28 August 2010); doi: 10.1117/12.859971; https://doi.org/10.1117/12.859971
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