The simulation of space-time speckle and impact based on synthetic aperture imaging ladar

Qian Xu; Liren Liu; Yu Zhou; Jianfeng Sun; Yapeng Wu

doi:10.1117/12.928396

15 October 2012 The simulation of space-time speckle and impact based on synthetic aperture imaging ladar

Qian Xu, Liren Liu, Yu Zhou, Jianfeng Sun, Yapeng Wu

Proceedings Volume 8520, Unconventional Imaging and Wavefront Sensing 2012; 85200U (2012) https://doi.org/10.1117/12.928396
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

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.

Citation Download Citation

Qian Xu, Liren Liu, Yu Zhou, Jianfeng Sun, and Yapeng Wu "The simulation of space-time speckle and impact based on synthetic aperture imaging ladar", Proc. SPIE 8520, Unconventional Imaging and Wavefront Sensing 2012, 85200U (15 October 2012); https://doi.org/10.1117/12.928396

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