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Proceedings Paper

Imaging processing with bidirectional modulation in down-looking synthetic aperture imaging ladar
Author(s): Zhiyong Lu; Yu Zhou; Jianfeng Sun; Zhu Luan; Lijuan Wang; Qian Xu; Liren Liu
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Paper 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.

Paper Details

Date Published: 6 September 2017
PDF: 7 pages
Proc. SPIE 10410, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2017, 1041012 (6 September 2017); doi: 10.1117/12.2272426
Show Author Affiliations
Zhiyong Lu, Shanghai Institute of Optics and Fine Mechanics (China)
Yu Zhou, Shanghai Institute of Optics and Fine Mechanics (China)
Jianfeng Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Zhu Luan, Shanghai Institute of Optics and Fine Mechanics (China)
Lijuan Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Qian Xu, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 10410:
Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2017
Jean J. Dolne; Rick P. Millane, Editor(s)

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