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Proceedings Paper

The simulation of space-time speckle and impact based on synthetic aperture imaging ladar
Author(s): Qian Xu; Liren Liu; Yu Zhou; Jianfeng Sun; Yapeng Wu
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Paper Abstract

In synthetic aperture imaging ladar (SAIL), spatially and temporally varied speckles are resulted from the linear wavelength chirped laser signal. The random phase and amplitude of space-time speckle is imported to heterodyne beat signal by antenna aperture integration. The numerical evolution for such an effect is presented. Our research indicates the random phase and amplitude is closely related to the ratio of antenna aperture and speckle scale. According to computer simulation results, the scale design of optical antenna aperture to reduce the image degradation is proposed.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8520, Unconventional Imaging and Wavefront Sensing 2012, 85200U (15 October 2012); doi: 10.1117/12.928396
Show Author Affiliations
Qian Xu, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, 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)
Yapeng Wu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8520:
Unconventional Imaging and Wavefront Sensing 2012
Jean J. Dolne; Thomas J. Karr; Victor L. Gamiz, Editor(s)

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