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Proceedings Paper

The impact of space-time speckle to the resolution in range and azimuth direction on synthetic aperture imaging ladar
Author(s): Qian Xu; Yu Zhou; Jianfeng Sun; Ya'nan Zhi; Xiaoping Ma; Zhiwei Sun; Dong Lu; Liren Liu
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Paper Abstract

As synthetic aperture imaging ladar employs the linear chirp laser signal, it is inevitably impacted by the space-time varying speckle effect. In many SAIL two-dimensional reconstructed images, the laser speckle effect severely reduces the image quality. In this paper, we analyze and simulate the influence of space-time speckle effect to the resolution element imaging both in range direction and in azimuth direction. Expressions for two-dimensional data collection contained space-time speckle effect are obtained, and computer simulation results of resolution degradation both in range direction and in cross-range direction are presented.

Paper Details

Date Published: 17 September 2013
PDF: 8 pages
Proc. SPIE 8877, Unconventional Imaging and Wavefront Sensing 2013, 88770K (17 September 2013); doi: 10.1117/12.2022974
Show Author Affiliations
Qian Xu, 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)
Ya'nan Zhi, Shanghai Institute of Optics and Fine Mechanics (China)
Xiaoping Ma, Shanghai Institute of Optics and Fine Mechanics (China)
Zhiwei Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Dong Lu, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8877:
Unconventional Imaging and Wavefront Sensing 2013
Jean J. Dolne; Thomas J. Karr; Victor L. Gamiz, Editor(s)

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