Characterization of laser propagation through turbulent media by quantifiers based on the wavelet transform: dynamic study
Luciano Zunino, Dario G. Perez, Mario Garavaglia, Osvaldo A. Rosso
Abstract
We analyze, within the wavelet theory framework, the wandering over a screen of the centroid of a laser beam after it has propagated through a time-changing laboratory-generated turbulence. Following a previous work (Fractals 12 (2004) 223) two quantifiers are used, the Hurst parameter, H, and the Normalized Total Wavelet Entropy, NTWS. The temporal evolution of both quantifiers, obtained from the laser spot data stream is studied and compared. This allows us to extract information of the stochastic process associated to the turbulence dynamics.
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