6 September 2017 Imaging processing with bidirectional modulation in down-looking synthetic aperture imaging ladar
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Abstract
Down-looking synthetic aperture imaging ladar have bidirectional (positive and negative direction) modulation in the orthogonal direction of travel during phase modulation. The return signal can be also collected in the two directions. The imaging processing with bidirectional modulation is used and demonstrated. The signal-to-noise ratio can be enhanced in this mode synthetic aperture imaging ladar. Meanwhile, the velocity of carrying-platform can be faster. In the experiment, the return signals with bidirectional modulation are stacked and rebuilt. Compared to the unidirectional modulation imaging, the faster and clearer imaging is realized with bidirectional modulation. This technique has a great potential for applications in extensive synthetic aperture imaging ladar fields.
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Zhiyong Lu, Zhiyong Lu, Yu Zhou, Yu Zhou, Jianfeng Sun, Jianfeng Sun, Zhu Luan, Zhu Luan, Lijuan Wang, Lijuan Wang, Qian Xu, Qian Xu, Liren Liu, Liren Liu, } "Imaging processing with bidirectional modulation in down-looking synthetic aperture imaging ladar", Proc. SPIE 10410, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2017, 1041012 (6 September 2017); doi: 10.1117/12.2272426; https://doi.org/10.1117/12.2272426
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