Characterization of Laser Propagation Through Turbulent Media by Quantifiers Based on the Wavelet Transform

Details Characterization of Laser Propagation Through Turbulent Media by Quantifiers Based on the Wavelet Transform Characterization of Laser Propagation Through Turbulent Media by Quantifiers Based on the Wavelet Transform

2003-03-14

arxiv.org/abs/nlin/0303027v3

Fractals, Vol. 12, No. 2 (2004) 223-233

Nonlinear Sciences

Chaotic Dynamics

20 Pages, 7 Figures, LaTeX, published in Fractals

Scientific paper

10.1142/S0218348X04002471

The propagation of a laser beam through turbulent media is modeled as a fractional Brownian motion (fBm). Time series corresponding to the center position of the laser spot (coordinates x and y) after traveling across air in turbulent motion, with different strength, are analyzed by the wavelet theory. Two quantifiers are calculated, the Hurst exponent and the mean Normalized Total Wavelet Entropy. It is verified that both quantifiers gives complementary information about the turbulence state.

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