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18 September 2018 Ghost image generated by relative movement of target and lidar platform in enhanced self-heterodyne SAIL
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Abstract
Enhanced self-heterodyne synthetic aperture imaging ladar (SAIL) is based on the down-looking SAIL, with a transmitter of two coaxial polarization-orthogonal beams of spatial parabolic phase difference and a receiver of heterodyne detection. Enhanced self-heterodyne SAIL has the capability to eliminate the influence from the atmospheric turbulence, has a high advantage in the detection of weak signals. However, the relative movement of target and lidar platform will generate ghost image in enhanced self-heterodyne SAIL. The image process of ghost image is mathematically detailed and simulated, the results image as the theoretical analysis. The enhanced self-heterodyne SAIL is necessarily work in spotlight mode in order to eliminate ghost image for far-distance lidar imaging.
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Guo Zhang, Jianfeng Sun, Yu Zhou, and Zhiyong Lu "Ghost image generated by relative movement of target and lidar platform in enhanced self-heterodyne SAIL", Proc. SPIE 10772, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018, 107720X (18 September 2018); https://doi.org/10.1117/12.2319645
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