1 June 2001 Long-range laser illuminated imaging: analysis and experimental demonstrations
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Optical Engineering, 40(6), (2001). doi:10.1117/1.1370059
Abstract
We demonstrate the utility of laser-illuminated imaging for high-resolution clandestine nighttime surveillance from a simulated airborne platform at standoff ranges in excess of 20 km. In order to reduce the necessary per-pulse laser energy required for illumination at such long ranges, and to mitigate atmospheric turbulence effects on image resolution, we have investigated a unique multiframe postprocessing 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.
David Charles Dayton, Stephen L. Browne, John D. Gonglewski, Steven C. Sandven, Joe Gallegos, Michael L. Shilko, "Long-range laser illuminated imaging: analysis and experimental demonstrations," Optical Engineering 40(6), (1 June 2001). http://dx.doi.org/10.1117/1.1370059
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KEYWORDS
Speckle

Fiber optic illuminators

Signal to noise ratio

Sensors

Receivers

Imaging systems

Atmospheric turbulence

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