Fractal characteristics of laser scintillation in the atmosphere

Details Fractal characteristics of laser scintillation in the atmosphere Fractal characteristics of laser scintillation in the atmosphere

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4926..193z&link_type=abstract

Proc. SPIE Vol. 4926, p. 193-198, Adaptive Optics and Applications II, Wenhan Jiang; Robert K. Tyson; Eds.

Physics

Optics

Scientific paper

Laser scintillation in the atmosphere exhibits fractal behavior. Two fractal characteristic parameters, the fractal dimension and the Hurst coefficient, are analyzed and compared with two traditional parameters, the scintillation index and the scaling exponent of the power spectrum. Results show that the scintillation is a kind of non- stationary process with long-run dependence; under the saturated scintillation conditions, the values of the two- fractal parameters are mostly smaller than those under weak scintillation conditions. According to the statistical behavior of the fractal parameters, it is possible to find new ways to deal with some problems concerning the scintillation saturation.

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