22 November 2000 Long-range laser-illuminated imaging
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We demonstrate the utility of laser illuminated imaging for clandestine night time surveillance from a simulated airborne platform at standoff ranges in excess 20 km. In order to reduce the necessary laser per pulse energy required for illumination at such long ranges, and to mitigate atmospheric turbulence effects on image resolution, we have investigated a unique multi-frame post-processing technique. It is shown that in the presence of atmospheric turbulence and coherent speckle effects, this approach can produce superior results to conventional scene flood illumination.
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David Charles Dayton, Stephen L. Browne, Steven C. Sandven, John D. Gonglewski, Joe Gallegos, Michael L. Shilko, "Long-range laser-illuminated imaging", Proc. SPIE 4124, High-Resolution Wavefront Control: Methods, Devices, and Applications II, (22 November 2000); doi: 10.1117/12.407505; https://doi.org/10.1117/12.407505

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