Estimation of illuminator scintillation in laser-illuminated imagery

David C. Dayton; James B. Lasche

doi:10.1117/12.2027501

17 September 2013 Estimation of illuminator scintillation in laser-illuminated imagery

David C. Dayton, James B. Lasche

Proceedings Volume 8877, Unconventional Imaging and Wavefront Sensing 2013; 88770A (2013) https://doi.org/10.1117/12.2027501
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

It is well known that atmospheric turbulence corrupts the phase front of laser beam propagation. The phase distortions manifest themselves as intensity fluctuations when the beam is propagated over some distance. This intensity fluctuation is often referred to as scintillation. Laser illuminated imaging systems are used for a variety of applications including night time imaging and tracking. The illuminator intensity fluctuation is often considered a noise effect on the imagery, however if an estimate of the scintillation can be separated from the images, it would be useful in estimating atmospheric turbulence parameters. In past work we have used a Bayesian estimation approach to separate the illuminator fluctuations from the target images. In this paper we extend that approach to included calculations of the spatial and temporal statistics of the scintillation estimate to extract atmospheric turbulence parameters

Citation Download Citation

David C. Dayton and James B. Lasche "Estimation of illuminator scintillation in laser-illuminated imagery", Proc. SPIE 8877, Unconventional Imaging and Wavefront Sensing 2013, 88770A (17 September 2013); https://doi.org/10.1117/12.2027501

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